Author: "Staszak D" / Topic: physics - Searchworks@Jio Institute Digital Library Search Results

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32 results on '"Staszak D"'

1. Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar

Author: Aliu, E., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Bradbury, S. M., Buckley, J. H., Bugaev, V., Byrum, K., Cannon, A., Cesarini, A., Christiansen, J. L., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dickherber, R., Duke, C., Errando, M., Falcone, A., Finley, J. P., Finnegan, G., Fortson, L., Furniss, A., Galante, N., Gall, D., Gibbs, K., Gillanders, G. H., Godambe, S., Griffin, S., Grube, J., Guenette, R., Gyuk, G., Hanna, D., Holder, J., Huan, H., Hughes, G., Hui, C. M., Humensky, T. B., Imran, A., Kaaret, P., Karlsson, N., Kertzman, M., Kieda, D., Krawczynski, H., Krennrich, F., Lang, M. J., Lyutikov, M., Madhavan, A. S, Maier, G., Majumdar, P., McArthur, S., McCann, A., McCutcheon, M., Moriarty, P., Mukherjee, R., Nuñez, P., Ong, R. A., Orr, M., Otte, A. N., Park, N., Perkins, J. S., Pizlo, F., Pohl, M., Prokoph, H., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Roache, E., Rose, H. J., Ruppel, J., Saxon, D. B., Schroedter, M., Sembroski, G. H., Şentürk, G. D., Smith, A. W., Staszak, D., Tešić, G., Theiling, M., Thibadeau, S., Tsurusaki, K., Tyler, J., Varlotta, A., Vassiliev, V. V., Vincent, S., Vivier, M., Wakely, S. P., Ward, J. E., Weekes, T. C., Weinstein, A., Weisgarber, T., Williams, D. A., and Zitzer, B.
Published: 2011
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2. Very high-energy gamma-ray follow-up program using neutrino triggers from IceCube

Author: IceCube Collaboration, Aartsen, M. G., Abraham, K., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Archinger, M., Arguelles, C., Auffenberg, J., Axani, S., Bai, X., Barwick, S. W., Baum, V., Bay, R., Beatty, J. J., Becker-Tjus, J., Becker, K. -H, Benzvi, S., Berley, D., Bernardini, E., Bernhard, A., Besson, D. Z., Binder, G., Bindig, D., Bissok, M., Blaufuss, E., Blot, S., Bohm, C., Borner, M., Bos, F., Bose, D., Boser, S., Botner, O., Braun, J., Brayeur, L., Bretz, H. -P, Bron, S., Burgman, A., Carver, T., Casier, M., Cheung, E., Chirkin, D., Christov, A., Clark, K., Classen, L., Coenders, S., Collin, G. H., Conrad, J. M., Cowen, D. F., Cross, R., Day, M., Andre, J. P. A. M., Clercq, C., Del Pino Rosendo, E., Dembinski, H., Ridder, S., Desiati, P., Vries, K. D., Wasseige, G., With, M., Deyoung, T., Diaz-Velez, J. C., Di Lorenzo, V., Dujmovic, H., Dumm, J. P., Dunkman, M., Eberhardt, B., Ehrhardt, T., Eichmann, B., Eller, P., Euler, S., Evenson, P. A., Fahey, S., Fazely, A. R., Feintzeig, J., Felde, J., Filimonov, K., Finley, C., Flis, S., Fosig, C. -C, Franckowiak, A., Franke, R., Friedman, E., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Ghorbani, K., Giang, W., Gladstone, L., Glauch, T., Glusenkamp, T., Goldschmidt, A., Golup, G., Gonzalez, J. G., Grant, D., Griffith, Z., Haack, C., Haj Ismail, A., Hallgren, A., Halzen, F., Hansen, E., Hansmann, T., Hanson, K., Hebecker, D., Heereman, D., Helbing, K., Hellauer, R., Hickford, S., Hignight, J., Hill, G. C., Hoffman, K. D., Hoffmann, R., Holzapfel, K., Hoshina, K., Huang, F., Huber, M., Hultqvist, K., In, S., Ishihara, A., Jacobi, E., Japaridze, G. S., Jeong, M., Jero, K., Jones, B. J. P., Jurkovic, M., Kappes, A., Karg, T., Karle, A., Katz, U., Kauer, M., Keivani, A., Kelley, J. L., Kheirandish, A., Kim, M., Kintscher, T., Kiryluk, J., Kittler, T., Klein, S. R., Kohnen, G., Koirala, R., Kolanoski, H., Konietz, R., Kopke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krings, K., Kroll, M., Kruckl, G., Kruger, C., Kunnen, J., Kunwar, S., Kurahashi, N., Kuwabara, T., Labare, M., Lanfranchi, J. L., Larson, M. J., Lauber, F., Lennarz, D., Lesiak-Bzdak, M., Leuermann, M., Lu, L., Lunemann, J., Madsen, J., Maggi, G., Mahn, K. B. M., Mancina, S., Mandelartz, M., Maruyama, R., Mase, K., Maunu, R., Mcnally, F., Meagher, K., Medici, M., Meier, M., Meli, A., Menne, T., Merino, G., Meures, T., Miarecki, S., Mohrmann, L., Montaruli, T., Moulai, M., Nahnhauer, R., Naumann, U., Neer, G., Niederhausen, H., Nowicki, S. C., Nygren, D. R., Obertacke Pollmann, A., Olivas, A., O Murchadha, A., Palczewski, T., Pandya, H., Pankova, D. V., Peiffer, P., Penek, O., Pepper, J. A., Perez Los Heros, C., Pieloth, D., Pinat, E., Price, P. B., Przybylski, G. T., Quinnan, M., Raab, C., Radel, L., Rameez, M., Rawlins, K., Reimann, R., Relethford, B., Relich, M., Resconi, E., Rhode, W., Richman, M., Riedel, B., Robertson, S., Rongen, M., Rott, C., Ruhe, T., Ryckbosch, D., Rysewyk, D., Sabbatini, L., Sanchez-Herrera, S. E., Sandrock, A., Sandroos, J., Sarkar, S., Satalecka, K., Schlunder, P., Schmidt, T., Schoenen, S., Schoneberg, S., Schumacher, L., Seckel, D., Seunarine, S., Soldin, D., Song, M., Spiczak, G. M., Spiering, C., Stanev, T., Stasik, A., Stettner, J., Steuer, A., Stezelberger, T., Stokstad, R. G., Stossl, A., Strom, R., Strotjohann, N. L., Sullivan, G. W., Sutherland, M., Taavola, H., Taboada, I., Tatar, J., Tenholt, F., Ter-Antonyan, S., Terliuk, A., Tevsic, G., Tilav, S., Toale, P. A., Tobin, M. N., Toscano, S., Tosi, D., Tselengidou, M., Turcati, A., Unger, E., Usner, M., Vandenbroucke, J., Eijndhoven, N., Vanheule, S., Rossem, M., Santen, J., Veenkamp, J., Vehring, M., Voge, M., Vogel, E., Vraeghe, M., Walck, C., Wallace, A., Wallraff, M., Wandkowsky, N., Weaver, Ch, Weiss, M. J., Wendt, C., Westerhoff, S., Whelan, B. J., Wickmann, S., Wiebe, K., Wiebusch, C. H., Wille, L., Williams, D. R., Wills, L., Wolf, M., Wood, T. R., Woolsey, E., Woschnagg, K., Xu, D. L., Xu, X. W., Xu, Y., Yanez, J. P., Yodh, G., Yoshida, S., Zoll, M., Magic, Collaboration, Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Antoranz, P., Babic, A., Banerjee, B., Bangale, P., Barres Almeida, U., Barrio, J. A., Becerra Gonzalez, J., Bednarek, W., Berti, A., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Buson, S., Carosi, A., Chatterjee, A., Clavero, R., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., Angelis, A., Lotto, B., Ona Wilhelmi, E., Di Pierro, F., Doert, M., Dominguez, A., Dominis Prester, D., Dorner, D., Michele Doro, Einecke, S., Eisenacher Glawion, D., Elsaesser, D., Engelkemeier, M., Fallah Ramazani, V., Fernandez-Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., Garcia Lopez, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giammaria, P., Godinovic, N., Gonzalez Munoz, A., Gora, D., Guberman, D., Hadasch, D., Hahn, A., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kodani, K., Konno, Y., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lindfors, E., Lombardi, S., Longo, F., Lopez, M., Lopez-Coto, R., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martinez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moretti, E., Nakajima, D., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nilsson, K., Nishijima, K., Noda, K., Nogues, L., Overkemping, A., Paiano, S., Palacio, J., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Pedaletti, G., Peresano, M., Perri, L., Persic, M., Poutanen, J., Prada Moroni, P. G., Prandini, E., Puljak, I., Reichardt, I., Ribo, M., Rico, J., Rodriguez Garcia, J., Saito, T., Schroeder, S., Schultz, C., Schweizer, T., Shore, S. N., Sillanpaa, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Steinbring, T., Strzys, M., Suric, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzic, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Vanzo, G., Verguilov, V., Vovk, I., Ward, J. E., Will, M., Wu, M. H., Zanin, R., Veritas, Collaboration, Abeysekara, A. U., Archambault, S., Archer, A., Benbow, W., Bird, R., Bourbeau, E., Buchovecky, M., Bugaev, V., Byrum, K., Cardenzana, J. V., Cerruti, M., Ciupik, L., Connolly, M. P., Cui, W., Dickinson, H. J., Dumm, J., Eisch, J. D., Errando, M., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Flinders, A., Fortson, L., Furniss, A., Gillanders, G. H., Griffin, S., Grube, J., Hutten, M., Haakansson, N., Hervet, O., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kelley-Hoskins, N., Kertzman, M., Kieda, D., Krause, M., Krennrich, F., Kumar, S., Lang, M. J., Maier, G., Mcarthur, S., Mccann, A., Moriarty, P., Mukherjee, R., Nguyen, T., Nieto, D., O Brien, S., Ong, R. A., Otte, A. N., Park, N., Pohl, M., Popkow, A., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rulten, C., Sadeh, I., Santander, M., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Wakely, S. P., Weinstein, A., Wilcox, P., Wilhelm, A., Williams, D. A., Zitzer, B., Vriendenkring VUB, Physics, Elementary Particle Physics, Universitat de Barcelona, Aartsen, M. G., Abraham, K., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Archinger, M., Argï¿½elles, C., Auffenberg, J., Axani, S., Bai, X., Barwick, S. W., Baum, V., Bay, R., Beatty, J. J., Becker Tjus, J., Becker, K. -H., Benzvi, S., Berley, D., Bernardini, E., Bernhard, A., Besson, D. Z., Binder, G., Bindig, D., Bissok, M., Blaufuss, E., Blot, S., Bohm, C., Bï¿½rner, M., Bos, F., Bose, D., Bï¿½ser, S., Botner, O., Braun, J., Brayeur, L., Bretz, H. -P., Bron, S., Burgman, A., Carver, T., Casier, M., Cheung, E., Chirkin, D., Christov, A., Clark, K., Classen, L., Coenders, S., Collin, G. H., Conrad, J. M., Cowen, D. F., Cross, R., Day, M., De Andrï¿½, J. P. A. M., De Clercq, C., Del Pino Rosendo, E., Dembinski, H., De Ridder, S., Desiati, P., De Vries, K. D., De Wasseige, G., De With, M., Deyoung, T., Dï¿½az-Vï¿½lez, J. C., Di Lorenzo, V., Dujmovic, H., Dumm, J. P., Dunkman, M., Eberhardt, B., Ehrhardt, T., Eichmann, B., Eller, P., Euler, S., Evenson, P. A., Fahey, S., Fazely, A. R., Feintzeig, J., Felde, J., Filimonov, K., Finley, C., Flis, S., Fï¿½sig, C. -C., Franckowiak, A., Franke, R., Friedman, E., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Ghorbani, K., Giang, W., Gladstone, L., Glauch, T., Glï¿½senkamp, T., Goldschmidt, A., Golup, G., Gonzalez, J. G., Grant, D., Griffith, Z., Haack, C., Haj Ismail, A., Hallgren, A., Halzen, F., Hansen, E., Hansmann, T., Hanson, K., Hebecker, D., Heereman, D., Helbing, K., Hellauer, R., Hickford, S., Hignight, J., Hill, G. C., Hoffman, K. D., Hoffmann, R., Holzapfel, K., Hoshina, K., Huang, F., Huber, M., Hultqvist, K., In, S., Ishihara, A., Jacobi, E., Japaridze, G. S., Jeong, M., Jero, K., Jones, B. J. P., Jurkovic, M., Kappes, A., Karg, T., Karle, A., Katz, U., Kauer, M., Keivani, A., Kelley, J. L., Kheirandish, A., Kim, M., Kintscher, T., Kiryluk, J., Kittler, T., Klein, S. R., Kohnen, G., Koirala, R., Kolanoski, H., Konietz, R., Kï¿½pke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krings, K., Kroll, M., Krï¿½ckl, G., Krï¿½ger, C., Kunnen, J., Kunwar, S., Kurahashi, N., Kuwabara, T., Labare, M., Lanfranchi, J. L., Larson, M. J., Lauber, F., Lennarz, D., Lesiak-Bzdak, M., Leuermann, M., Lu, L., Lï¿½nemann, J., Madsen, J., Maggi, G., Mahn, K. B. M., Mancina, S., Mandelartz, M., Maruyama, R., Mase, K., Maunu, R., Mcnally, F., Meagher, K., Medici, M., Meier, M., Meli, A., Menne, T., Merino, G., Meures, T., Miarecki, S., Mohrmann, L., Montaruli, T., Moulai, M., Nahnhauer, R., Naumann, U., Neer, G., Niederhausen, H., Nowicki, S. C., Nygren, D. R., Obertacke Pollmann, A., Olivas, A., O'Murchadha, A., Palczewski, T., Pandya, H., Pankova, D. V., Peiffer, P., Penek, O., Pepper, J. A., Pï¿½rez De Los Heros, C., Pieloth, D., Pinat, E., Price, P. B., Przybylski, G. T., Quinnan, M., Raab, C., Rï¿½del, L., Rameez, M., Rawlins, K., Reimann, R., Relethford, B., Relich, M., Resconi, E., Rhode, W., Richman, M., Riedel, B., Robertson, S., Rongen, M., Rott, C., Ruhe, T., Ryckbosch, D., Rysewyk, D., Sabbatini, L., Sanchez Herrera, S. E., Sandrock, A., Sandroos, J., Sarkar, S., Satalecka, K., Schlunder, P., Schmidt, T., Schoenen, S., Schï¿½neberg, S., Schumacher, L., Seckel, D., Seunarine, S., Soldin, D., Song, M., Spiczak, G. M., Spiering, C., Stanev, T., Stasik, A., Stettner, J., Steuer, A., Stezelberger, T., Stokstad, R. G., Stï¿½ï¿½l, A., Strï¿½m, R., Strotjohann, N. L., Sullivan, G. W., Sutherland, M., Taavola, H., Taboada, I., Tatar, J., Tenholt, F., Ter-Antonyan, S., Terliuk, A., Tesic, G., Tilav, S., Toale, P. A., Tobin, M. N., Toscano, S., Tosi, D., Tselengidou, M., Turcati, A., Unger, E., Usner, M., Vandenbroucke, J., Van Eijndhoven, N., Vanheule, S., Van Rossem, M., Van Santen, J., Veenkamp, J., Vehring, M., Voge, M., Vogel, E., Vraeghe, M., Walck, C., Wallace, A., Wallraff, M., Wandkowsky, N., Weaver, Ch., Weiss, M. J., Wendt, C., Westerhoff, S., Whelan, B. J., Wickmann, S., Wiebe, K., Wiebusch, C. H., Wille, L., Williams, D. R., Wills, L., Wolf, M., Wood, T. R., Woolsey, E., Woschnagg, K., Xu, D. L., Xu, X. W., Xu, Y., Yanez, J. P., Yodh, G., Yoshida, S., Zoll, M., Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Antoranz, P., Babic, A., Banerjee, B., Bangale, P., Barres De Almeida, U., Barrio, J. A., Becerra Gonzï¿½lez, J., Bednarek, W., Berti, A., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Buson, S., Carosi, A., Chatterjee, A., Clavero, R., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., De Ona Wilhelmi, E., Di Pierro, F., Doert, M., Domï¿½nguez, A., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Eisenacher Glawion, D., Elsaesser, D., Engelkemeier, M., Ramazani Fallah, V., Fernï¿½ndez-Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., Garcï¿½a Lopez, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giammaria, P., Godinovic, N., Gonzï¿½lez Munoz, A., Gora, D., Guberman, D., Hadasch, D., Hahn, A., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kodani, K., Konno, Y., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lindfors, E., Lombardi, S., Longo, F., Lopez, M., Lopez-Coto, R., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martï¿½nez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moretti, E., Nakajima, D., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nilsson, K., Nishijima, K., Noda, K., Noguï¿½s, L., Overkemping, A., Paiano, S., Palacio, J., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Pedaletti, G., Peresano, M., Perri, L., Persic, M., Poutanen, J., Prada Moroni, P. G., Prandini, E., Puljak, I., Reichardt, I., Ribo, M., Rico, J., Rodriguez Garcia, J., Saito, T., Schroeder, S., Schultz, C., Schweizer, T., Sillanpï¿½ï¿½, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Steinbring, T., Strzys, M., Suric, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzic, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Vanzo, G., Verguilov, V., Vovk, I., Ward, J. E., Will, M., Wu, M. H., Zanin, R., Abeysekara, A. U., Archambault, S., Archer, A., Benbow, W., Bird, R., Bourbeau, E., Buchovecky, M., Bugaev, V., Byrum, K., Cardenzana, J. V., Cerruti, M., Ciupik, L., Connolly, M. P., Cui, W., Dickinson, H. J., Dumm, J., Eisch, J. D., Errando, M., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Flinders, A., Fortson, L., Furniss, A., Gillanders, G. H., Griffin, S., Grube, J., Hï¿½tten, M., Hakansson, N., Hervet, O., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kelley-Hoskins, N., Kertzman, M., Kieda, D., Krause, M., Krennrich, F., Kumar, S., Lang, M. J., Maier, G., Mcarthur, S., Mccann, A., Moriarty, P., Mukherjee, R., Nguyen, T., Nieto, D., O'Brien, S., Ong, R. A., Otte, A. N., Park, N., Pohl, M., Popkow, A., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rulten, C., Sadeh, I., Santander, M., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Wakely, S. P., Weinstein, A., Wilcox, P., Wilhelm, A., Williams, D. A., Zitzer, B., Massachusetts Institute of Technology. Department of Physics, Arguelles Delgado, Carlos A, Axani, Spencer Nicholas, Collin G. H., Conrad, Janet Marie, Jones, Benjamin James Poyner, and Moulai, Marjon H.
Subjects: High energy, Particle physics, Physics - Instrumentation and Detectors, Gamma telescope, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Gamma telescopes, FOS: Physical sciences, 01 natural sciences, Neutrino detectors, Instrumentation, Mathematical Physics, Online analysis, High Energy Physics - Experiment, Neutrino detector, High Energy Physics - Experiment (hep-ex), Raigs gamma, 0103 physical sciences, MAGIC (telescope), ddc:610, Neutrins, Neutrinos, Blazar, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, media_common, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010308 nuclear & particles physics, Gamma rays, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Instrumentation and Detectors (physics.ins-det), Sky, Física nuclear, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, neutrino detectors, gamma telescopes
Abstract: Journal of Instrumentation 11(11), P11009(2016). doi:10.1088/1748-0221/11/11/P11009, We describe and report the status of a neutrino-triggered program in IceCube that generates real-time alerts for gamma-ray follow-up observations by atmospheric-Cherenkov telescopes (MAGIC and VERITAS). While IceCube is capable of monitoring the whole sky continuously, high-energy gamma-ray telescopes have restricted fields of view and in general are unlikely to be observing a potential neutrino-flaring source at the time such neutrinos are recorded. The use of neutrino-triggered alerts thus aims at increasing the availability of simultaneous multi-messenger data during potential neutrino flaring activity, which can increase the discovery potential and constrain the phenomenological interpretation of the high-energy emission of selected source classes (e.g. blazars). The requirements of a fast and stable online analysis of potential neutrino signals and its operation are presented, along with first results of the program operating between 14 March 2012 and 31 December 2015., Published by Inst. of Physics, London
Published: 2017
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3. Multiwavelength study of quiescent states of MRK 421 with unprecedented hard x-ray coverage provided by NuSTAR in 2013

Author: Baloković, M., Paneque, D., Madejski, G., Furniss, A., Chiang, J., the NuSTAR team, Ajello, M., Alexander, D. M., Barret, D., Blandford, R., Boggs, S. E., Christensen, F. E., Craig, W. W., Forster, K., Giommi, P., Grefenstette, B. W., Hailey, C. J., Harrison, F. A., Hornstrup, A., Kitaguchi, T., Koglin, J. E., Madsen, K. K., Mao, P. H., Miyasaka, H., Mori, K., Perri, M., Pivovaroff, M. J., Simonetta Puccetti, Rana, V., Stern, D., Tagliaferri, G., Urry, C. M., Westergaard, N. J., Zhang, W. W., Zoglauer, A., Veritas, The Collaboration, Archambault, S., Archer, A. A., Barnacka, A., Benbow, W., Bird, R., Buckley, J., Bugaev, V., Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Dickinson, H. J., Dumm, J., Eisch, J. D., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Fortson, L., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Huetten, M., Haakansson, N., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krause, M., Krennrich, F., Lang, M. J., Maier, G., Mcarthur, S., Meagher, K., Moriarty, P., Nelson, T., Nieto, D., Ong, R. A., Park, N., Pohl, M., Popkow, A., Pueschel, E., Reynolds, P. T., Richards, G. T., Roache, E., Santander, M., Sembroski, G. H., Shahinyan, K., Smith, A. W., Staszak, D., Telezhinsky, I., Todd, N. W., Tucci, J. V., Tyler, J., Vincent, S., Weinstein, A., Wilhelm, A., Williams, D. A., Zitzer, B., Magic, The Collaboration, Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Antoranz, P., Babic, A., Banerjee, B., Bangale, P., Barres Almeida, U., Barrio, J., Becerra González, J., Bednarek, W., Bernardini, E., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Chatterjee, A., Clavero, R., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., Angelis, A., Lotto, B., Oña Wilhelmi, E. D., Delgado Mendez, C., Di Pierro, F., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Elsaesser, D., Fernández-Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., García López, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giammaria, P., Eisenacher, D., Godinović, N., González Muñoz, A., Guberman, D., Hahn, A., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kodani, K., Konno, Y., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lindfors, E., Lombardi, S., Longo, F., López, M., López-Coto, R., López-Oramas, A., Lorenz, E., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moretti, E., Nakajima, D., Neustroev, V., Niedzwiecki, A., Nievas-Rosillo, M., Nilsson, K., Nishijima, K., Noda, K., Orito, R., Overkemping, A., Paiano, S., Palacio, S., Palatiello, M., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Persic, M., Poutanen, J., Prada Moroni, P. G., Prandini, E., Puljak, I., Rhode, W., Ribó, M., Rico, J., Rodriguez Garcia, J., Saito, T., Satalecka, K., Scapin, V., Schultz, C., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Steinbring, T., Strzys, M., Takalo, L. O., Takami, H., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Verguilov, V., Vovk, I., Ward, J. E., Will, M., Wu, M. H., Zanin, R., Collaborators, External, Perkins, J., Verrecchia, F., Leto, C., Böttcher, M., Villata, M., Raiteri, C. M., Acosta-Pulido, J. A., Bachev, R., Berdyugin, A., Blinov, D. A., Carnerero, M. I., Chen, W. P., Chinchilla, P., Damljanovic, G., Eswaraiah, C., Grishina, T. S., Ibryamov, S., Jordan, B., Jorstad, S. G., Joshi, M., Kopatskaya, E. N., Kurtanidze, O. M., Kurtanidze, S. O., Larionova, E. G., Larionova, L. V., Larionov, V. M., Latev, G., Lin, H. C., Marscher, A. P., Mokrushina, A. A., Morozova, D. A., Nikolashvili, M. G., Semkov, E., Strigachev, A., Troitskaya, Yu V., Troitsky, I. S., Vince, O., Barnes, J., Güver, T., Moody, J. W., Sadun, A. C., Sun, S., Hovatta, T., Richards, J. L., Max-Moerbeck, W., Readhead, A. C., Lähteenmäki, A., Tornikoski, M., Tammi, J., Ramakrishnan, V., Reinthal, R., Angelakis, E., Fuhrmann, L., Myserlis, I., Karamanavis, V., Sievers, A., Ungerechts, H., Zensus, J. A., Universitat de Barcelona, Department of Radio Science and Engineering, Aalto-yliopisto, Aalto University, Glawion , D., ~, Baloković, M., Paneque, D., Madejski, G., Furniss, A., Chiang, J., Ajello, M., Alexander, D. M., Barret, D., Blandford, R. D., Boggs, S. E., Christensen, F. E., Craig, W. W., Forster, K., Giommi, P., Grefenstette, B., Hailey, C., Harrison, F. A., Hornstrup, A., Kitaguchi, T., Koglin, J. E., Madsen, K. K., Mao, P. H., Miyasaka, H., Mori, K., Perri, M., Pivovaroff, M. J., Puccetti, S., Rana, V., Stern, D., Tagliaferri, G., Urry, C. M., Westergaard, N. J., Zhang, W. W., Zoglauer, A., Archambault, S., Archer, A., Barnacka, A., Benbow, W., Bird, R., Buckley, J. H., Bugaev, V., Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Dickinson, H. J., Dumm, J., Eisch, J. D., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Fortson, L., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Huetten, M., Håkansson, N., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krause, M., Krennrich, F., Lang, M. J., Maier, G., Mcarthur, S., Meagher, K., Moriarty, P., Nelson, T., Nieto, D., Ong, R. A., Park, N., Pohl, M., Popkow, A., Pueschel, E., Reynolds, P. T., Richards, G. T., Roache, E., Santander, M., Sembroski, G. H., Shahinyan, K., Smith, A. W., Staszak, D., Telezhinsky, I., Todd, N. W., Tucci, J. V., Tyler, J., Vincent, S., Weinstein, A., Wilhelm, A., Williams, D. A., Zitzer, B., Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Antoranz, P., Babic, A., Banerjee, B., Bangale, P., De Almeida, U. Barre, Barrio, J. A., González, J. Becerra, Bednarek, W., Bernardini, E., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Chatterjee, A., Clavero, R., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., De Ońa Wilhelmi, E., Mendez, C. Delgado, Di Pierro, F., Prester, D. Domini, Dorner, D., Doro, M., Einecke, S., Elsaesser, D., Fernández Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., López, R. J. García, Garczarczyk, M., Terrats, D. Garrido, Gaug, M., Giammaria, P., Glawion, D., Godinović, N., González Muñoz, A., Guberman, D., Hahn, A., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kodani, K., Konno, Y., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lindfors, E., Lombardi, S., Longo, Francesco, López, M., López Coto, R., López Oramas, A., Lorenz, E., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moretti, E., Nakajima, D., Neustroev, V., Niedzwiecki, A., Rosillo, M. Nieva, Nilsson, K., Nishijima, K., Noda, K., Orito, R., Overkemping, A., Paiano, S., Palacio, J., Palatiello, Michele, Paoletti, R., Paredes, J. M., Paredes Fortuny, X., Persic, M., Poutanen, J., Moroni, P. G. Prada, Prandini, E., Puljak, I., Rhode, W., Ribó, M., Rico, J., Garcia, J. Rodriguez, Saito, T., Satalecka, K., Scapin, V., Schultz, C., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Steinbring, T., Strzys, M., Takalo, L., Takami, H., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Verguilov, V., Vovk, I., Ward, J. E., Will, M., Wu, M. H., Zanin, R., Perkins, J., Verrecchia, F., Leto, C., Böttcher, M., Villata, M., Raiteri, C. M., Acosta Pulido, J. A., Bachev, R., Berdyugin, A., Blinov, D. A., Carnerero, M. I., Chen, W. P., Chinchilla, P., Damljanovic, G., Eswaraiah, C., Grishina, T. S., Ibryamov, S., Jordan, B., Jorstad, S. G., Joshi, M., Kopatskaya, E. N., Kurtanidze, O. M., Kurtanidze, S. O., Larionova, E. G., Larionova, L. V., Larionov, V. M., Latev, G., Lin, H. C., Marscher, A. P., Mokrushina, A. A., Morozova, D. A., Nikolashvili, M. G., Semkov, E., Smith, P. S., Strigachev, A., Troitskaya, Y. u. V., Troitsky, I. S., Vince, O., Barnes, J., Güver, T., Moody, J. W., Sadun, A. C., Sun, S., Hovatta, T., Richards, J. L., Max Moerbeck, W., Readhead, A. C. R., Lähteenmäki, A., Tornikoski, M., Tammi, J., Ramakrishnan, V., Reinthal, R., Angelakis, E., Fuhrmann, L., Myserlis, I., Karamanavis, V., Sievers, A., Ungerechts, H., and Zensus, J. A.
Subjects: galaxie [X-rays], Photon, PARTICLE-ACCELERATION, ELECTRON ACCELERATION, BACKGROUND-RADIATION, Astrophysics, Electron, Nonthermal, BL Lacertae objects: individual (Markarian 421), galaxies: active, gamma rays: general, radiation mechanisms: nonthermal, X-rays: galaxies, 01 natural sciences, individual: Markarian 421 [BL Lacertae objects], LARGE-AREA TELESCOPE, individual (Markarian 421) [BL Lacertae objects], law.invention, Raigs gamma, law, MAGNETIC RECONNECTION, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Large area telescope, TEV BLAZARS, gamma, rays: general, ACTIVE GALACTIC NUCLEI, BL LACERTAE OBJECTS, LAC OBJECTS, CORRELATED VARIABILITY, Synchrotron, galaxies [X-rays], Spectral energy distribution, Degree of polarization, Electrónica, Física nuclear, Raigs X, Electricidad, Astrophysics - High Energy Astrophysical Phenomena, BL Lac object, Astronomy and Astrophysics, Space and Planetary Science, active [Galaxies], Astrophysics::High Energy Astrophysical Phenomena, Particle acceleration, general [Gamma rays], FOS: Physical sciences, Photon energy, 0103 physical sciences, X-rays, Radiation mechanisms, BL Lacertae objects, individual, Markarian 421, galaxies, active, gamma rays, general, radiation mechanisms, nonthermal, 010308 nuclear & particles physics, Gamma rays, Astronomy and Astrophysic, nonthermal [Radiation mechanisms], Light curve, Galaxies, Galàxies, Background radiation, ddc:520
Abstract: The astrophysical journal 819(2), 156 (2016). doi:10.3847/0004-637X/819/2/156, We present coordinated multiwavelength observations of the bright, nearby BL Lacertae object Mrk 421 taken in 2013 January–March, involving GASP-WEBT, Swift, NuSTAR, Fermi-LAT, MAGIC, VERITAS, and other collaborations and instruments, providing data from radio to very high energy (VHE) γ-ray bands. NuSTAR yielded previously unattainable sensitivity in the 3–79 keV range, revealing that the spectrum softens when the source is dimmer until the X-ray spectral shape saturates into a steep ${\rm{\Gamma }}\approx 3$ power law, with no evidence for an exponential cutoff or additional hard components up to ~80 keV. For the first time, we observed both the synchrotron and the inverse-Compton peaks of the spectral energy distribution (SED) simultaneously shifted to frequencies below the typical quiescent state by an order of magnitude. The fractional variability as a function of photon energy shows a double-bump structure that relates to the two bumps of the broadband SED. In each bump, the variability increases with energy, which, in the framework of the synchrotron self-Compton model, implies that the electrons with higher energies are more variable. The measured multi band variability, the significant X-ray-to-VHE correlation down to some of the lowest fluxes ever observed in both bands, the lack of correlation between optical/UV and X-ray flux, the low degree of polarization and its significant (random) variations, the short estimated electron cooling time, and the significantly longer variability timescale observed in the NuSTAR light curves point toward in situ electron acceleration and suggest that there are multiple compact regions contributing to the broadband emission of Mrk 421 during low-activity states., Published by Univ.11032, Chicago, Ill. [u.a.]
Published: 2016

4. A search for spectral hysteresis and energy-dependent time lags from X-ray and TeV gamma-ray observations of Mrk 421

Author: Abeysekara, A. U., Archambault, S., Chen, X., De Lotto, B., Wilhelmi, E. de Oña, Di Pierro, F., Doert, M., Domínguez, A., Prester, D. Dominis, Dorner, D., Doro, M., Einecke, S., Glawion, D. Eisenacher, Ciupik, L., Elsaesser, D., Engelkemeier, M., Ramazani, V. Fallah, Fernández-Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Fruck, C., Galindo, D., López, R. J. García, Connolly, M. P., Garczarczyk, M., Gaug, M., Giammaria, P., Godinović, N., Gora, D., Guberman, D., Hadasch, D., Hahn, A., Hassan, T., Hayashida, M., Cui, W., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kodani, K., Konno, Y., Kubo, H., Kushida, J., Lelas, D., Eisch, J. D., Lindfors, E., Lombardi, S., Longo, F., López, M., López-Coto, R., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Falcone, A., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Mirzoyan, R., Moralejo, A., Moretti, E., Feng, Q., Nakajima, D., Neustroev, V., Niedzwiecki, A., Rosillo, M. Nievas, Nilsson, K., Nishijima, K., Noda, K., Nogués, L., Nöthe, M., Paiano, S., Finley, J. P., Palacio, J., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Pedaletti, G., Peresano, M., Perri, L., Persic, M., Fleischhack, H., Poutanen, J., Moroni, P. G. Prada, Prandini, E., Puljak, I., Garcia, J. R., Reichardt, I., Rhode, W., Ribó, M., Rico, J., Saito, T., Flinders, A., Satalecka, K., Schroeder, S., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Strzys, M., Archer, A., Fortson, L., Surić, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Torres, D. F., Torres-Albà, N., Toyama, T., Furniss, A., Treves, A., Vanzo, G., Acosta, M. Vazquez, Vovk, I., Ward, J. E., Will, M., Wu, M. H., Zanin, R., Hovatta, T., Perez, I. de la Calle, Griffin, S., Smith, P. S., Racero, E., Baloković, M., VERITAS Collaboration, MAGIC Collaboration, Hütten, M., Håkansson, N., Hanna, D., Hervet, O., Holder, J., Humensky, T. B., Kaaret, P., Benbow, W., Kar, P., Kertzman, M., Kieda, D., Krause, Maria, Kumar, S., Lang, M. J., Maier, G., McArthur, S., McCann, A., Meagher, K., Bird, R., Moriarty, P., Mukherjee, R., Nieto, D., O'Brien, S., Ong, R. A., Otte, A. N., Park, N., Pelassa, V., Pohl, Martin, Popkow, A., Buchovecky, M., Pueschel, E., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Sadeh, I., Santander, M., Sembroski, G. H., Shahinyan, K., Staszak, D., Buckley, J. H., Telezhinsky, I., Tucci, J. V., Tyler, J., Wakely, S. P., Weinstein, A., Wilhelm, Alina, Williams, D. A., Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Bugaev, V., Antoranz, P., Arcaro, C., Babic, A., Banerjee, B., Bangale, P., de Almeida, U. Barres, Barrio, J. A., González, J. Becerra, Bednarek, W., Bernardini, E., Cardenzana, J. V, Berti, A., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carosi, R., Carosi, A., Cerruti, M., Chatterjee, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Cumani, P., Da Vela, P., Dazzi, F., De Angelis, A., Department of Radio Science and Engineering, Aalto-yliopisto, Aalto University, Universitat de Barcelona, Abeysekara, A. U., Archambault, S., Archer, A., Benbow, W., Bird, R., Buchovecky, M., Buckley, J. H., Bugaev, V., Cardenzana, J. V., Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Eisch, J. D., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Flinders, A., Fortson, L., Furniss, A., Griffin, S., Hakansson, M. H. N., Hanna, D., Hervet, O., Holder, J., Humensky, T. B., Kaaret, P., Kar, P., Kertzman, M., Kieda, D., Krause, M., Kumar, S., Lang, M. J., Maier, G., Mcarthur, S., Mccann, A., Meagher, K., Moriarty, P., Mukherjee, R., Nieto, D., Ong, S. O. R. A., Otte, A. N., Park, N., Pelassa, V., Pohl, M., Popkow, A., Pueschel, E., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Sadeh, I., Santander, M., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Wakely, S. P., Weinstein, A., Wilhelm, A., Williams, D. A., Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Antoranz, P., Arcaro, C., Babic, A., Banerjee, B., Bangale, P., Almeida, U. Barres De, Barrio, J. A., González, J. Becerra, Bednarek, W., Bernardini, E., Berti, Alessio, Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carosi, R., Carosi, A., Chatterjee, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Cumani, P., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., De Ona Wilhelmi, E., Di Pierro, F., Doert, M., Domínguez, A., Prester, D. Domini, Dorner, D., Doro, M., Einecke, S., Glawion, D. Eisenacher, Elsaesser, D., Engelkemeier, M., Ramazani, V. Fallah, Fernández Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Fruck, C., Galindo, D., López, R. J. García, Garczarczyk, M., Gaug, M., Giammaria, P., Godinović, N., Gora, D., Guberman, D., Hadasch, D., Hahn, A., Hassan, T., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kodani, K., Konno, Y., Kubo, H., Kushida, J., Lelas, D., Lindfors, E., Lombardi, S., Longo, Francesco, López, M., López Coto, R., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Mirzoyan, R., Moralejo, A., Moretti, E., Nakajima, D., Neustroev, V., Niedzwiecki, A., Rosillo, M. Nieva, Nilsson, K., Nishijima, K., Noda, K., Nogués, L., Nöthe, M., Paiano, S., Palacio, J., Palatiello, Michele, Paneque, D., Paoletti, R., Paredes, J. M., Paredes Fortuny, X., Pedaletti, G., Peresano, M., Perri, L., Persic, M., Poutanen, J., Moroni, P. G. Prada, Prandini, E., Puljak, I., Garcia, J. R., Reichardt, I., Rhode, W., Ribó, M., Rico, J., Saito, T., Satalecka, K., Schroeder, S., Schweizer, T., Shore, S. N., Sillanp, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Strzys, M., Surić, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Torres, D. F., Torres Albà, N., Toyama, T., Treves, A., Vanzo, G., Acosta, M. Vazquez, Vovk, I., Ward, J. E., Will, M., Wu, M. H., Zanin, R., Hovatta, T., De La Calle Perez, I., Smith, P. S., Racero, E., and Baloković, M.
Subjects: bl-lacertae objects, blazars, Astrophysics, telescope, 01 natural sciences, Spectral line, individual (Markarian 421) [BL Lacertae objects], law.invention, Raigs gamma, law, emission, MAGIC (telescope), 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Spectral index, Gamma ray, Radius, lac objects, non-thermal [radiation mechanisms], Synchrotron, xmm-newton, BL Lacertae objects: individual (Markarian 421), galaxies: active, gamma rays: general, radiation mechanisms: non-thermal, Astronomy and Astrophysics, Space and Planetary Science, correlated variability, active [galaxies], Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, multiwavelength observations, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, 0103 physical sciences, Blazar, 010308 nuclear & particles physics, Gamma rays, Spectral density, Astronomy and Astrophysic, Galaxies, Galàxies, active galactic nuclei, markarian-421, ddc:520, galaxies: active – BL Lacertae objects: individual: (Markarian 421), general [gamma rays]
Abstract: The astrophysical journal 834(1), 2 (2017). doi:10.3847/1538-4357/834/1/2, Blazars are variable emitters across all wavelengths over a wide range of timescales, from months down to minutes. It is therefore essential to observe blazars simultaneously at different wavelengths, especially in the X-ray and gamma-ray bands, where the broadband spectral energy distributions usually peak. In this work, we report on three "target-of-opportunity" observations of Mrk 421, one of the brightest TeV blazars, triggered by a strong flaring event at TeV energies in 2014. These observations feature long, continuous, and simultaneous exposures with XMM-Newton (covering the X-ray and optical/ultraviolet bands) and VERITAS (covering the TeV gamma-ray band), along with contemporaneous observations from other gamma-ray facilities (MAGIC and Fermi-Large Area Telescope) and a number of radio and optical facilities. Although neither rapid flares nor significant X-ray/TeV correlation are detected, these observations reveal subtle changes in the X-ray spectrum of the source over the course of a few days. We search the simultaneous X-ray and TeV data for spectral hysteresis patterns and time delays, which could provide insight into the emission mechanisms and the source properties (e.g., the radius of the emitting region, the strength of the magnetic field, and related timescales). The observed broadband spectra are consistent with a one-zone synchrotron self-Compton model. We find that the power spectral density distribution at $\gtrsim$ 4 × 10$^{−4}$ Hz from the X-ray data can be described by a power-law model with an index value between 1.2 and 1.8, and do not find evidence for a steepening of the power spectral index (often associated with a characteristic length scale) compared to the previously reported values at lower frequencies., Published by IOP Publ., Chicago, Ill. [u.a.]
Published: 2016
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5. Deep broadband observations of the distant gamma-ray blazar PKS 1424+240

Author: Archambault, S., Aune, T., Cardenzana, J. V, de Palma, F., Dermer, C. D., Digel, S. W., Di Venere, L., Drell, P. S., Favuzzi, C., Franckowiak, A., Fusco, P., Gargano, F., Gasparrini, D., Cerruti, M., Giglietto, N., Giordano, Francesca, Giroletti, M., Grenier, I. A., Guiriec, S., Jogler, T., Kuss, M., Larsson, S., Latronico, L., Longo, F., Chen, X., Loparco, F., Lubrano, P., Madejski, G. M., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Murgia, S., Ciupik, L., Nuss, E., Ohsugi, T., Ormes, J. F., Paneque, D., Perkins, J. S., Piron, F., Pivato, G., Rainò, S., Razzano, M., Reimer, A., Connolly, M. P., Reimer, O., Ritz, S., Schaal, M., Sgrò, C., Siskind, E. J., Spinelli, P., Takahashi, H., Tibaldo, L., Tinivella, M., Troja, E., Cui, W., Vianello, G., Werner, M., Wood, M., VERITAS Collaboration, Fermi-LAT Collaboration, Dumm, J., Errando, M., Falcone, A., Federici, S., Behera, B., Feng, Q., Finley, J. P., Fleischhack, H., Fortson, L., Furniss, A., Galante, N., Gillanders, G. H., Griffin, S., Griffiths, S. T., Grube, J., Beilicke, M., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Humensky, T. B., Johnson, C. A., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Benbow, W., Krawczynski, H., Krennrich, F., Kumar, S., Lang, M. J., Madhavan, A. S, Maier, G., McCann, A., Meagher, K., Moriarty, P., Mukherjee, R., Berger, K., Nieto, D., de Bhróithe, A. O'Faoláin, Ong, R. A., Otte, A. N., Park, N., Pohl, M., Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Bird, R., Rajotte, J., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Biteau, J., Tyler, J., Varlotta, A., Vassiliev, V. V., Vincent, S., Wakely, S. P., Weinstein, A., Welsing, R., Wilhelm, A., Williams, D. A., Ackermann, M., Bugaev, V., Ajello, M., Albert, A., Baldini, L., Bastieri, D., Bellazzini, R., Bissaldi, E., Bregeon, J., Buehler, R., Buson, S., Caliandro, G. A., Byrum, K., Cameron, R. A., Caraveo, P. A., Cavazzuti, E., Charles, E., Chiang, J., Ciprini, S., Claus, R., Cutini, S., D'Ammando, F., de Angelis, A., Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), VERITAS, Fermi-LAT, Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Archambault, S., Aune, T., Behera, B., Beilicke, M., Benbow, W., Berger, K., Bird, R., Biteau, J., Bugaev, V., Byrum, K., Cardenzana, J. V., Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Dumm, J., Errando, M., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Fleischhack, H., Fortson, L., Furniss, A., Galante, N., Gillanders, G. H., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Humensky, T. B., Johnson, C. A., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krawczynski, H., Krennrich, F., Kumar, S., Lang, M. J., Madhavan, A. S., Maier, G., Mccann, A., Meagher, K., Moriarty, P., Mukherjee, R., Nieto, D., De Bhróithe, A. O'Faoláin, Ong, R. A., Otte, A. N., Park, N., Pohl, M., Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Rajotte, J., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Varlotta, A., Vassiliev, V. V., Vincent, S., Wakely, S. P., Weinstein, A., Welsing, R., Wilhelm, A., Williams, D. A., Ackermann, M., Ajello, M., Albert, A., Baldini, L., Bastieri, D., Bellazzini, R., Bissaldi, Elisabetta, Bregeon, J., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caraveo, P. A., Cavazzuti, E., Charles, E., Chiang, J., Ciprini, S., Claus, R., Cutini, S., D'Ammando, F., De Angelis, A., De Palma, F., Dermer, C. D., Digel, S. W., Di Venere, L., Drell, P. S., Favuzzi, C., Franckowiak, A., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Grenier, I. A., Guiriec, S., Jogler, T., Kuss, M., Larsson, S., Latronico, L., Longo, Francesco, Loparco, F., Lubrano, P., Madejski, G. M., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Murgia, S., Nuss, E., Ohsugi, T., Ormes, J. F., Paneque, D., Perkins, J. S., Piron, F., Pivato, G., Rainò, S., Razzano, M., Reimer, A., Reimer, O., Ritz, S., Schaal, M., Sgrò, C., Siskind, E. J., Spinelli, P., Takahashi, H., Tibaldo, L., Tinivella, M., Troja, E., Vianello, G., Werner, M., Wood, M., Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Archambault S, Aune T, Behera B, Beilicke M, Benbow W, Berger K, Bird R, Biteau J, Bugaev V, Byrum K, Cardenzana JV, Cerruti M, Chen X, Ciupik L, Connolly MP, Cui W, Dumm J, Errando M, Falcone A, Federici S, Feng Q, Finley JP, Fleischhack H, Fortson L, Furniss A, Galante N, Gillanders GH, Griffin S, Griffiths ST, Grube J, Gyuk G, Hanna D, Holder J, Hughes G, Humensky TB, Johnson CA, Kaaret P, Kertzman M, Khassen Y, Kieda D, Krawczynski H, Krennrich F, Kumar S, Lang MJ, Madhavan AS, Maier G, McCann A, Meagher K, Moriarty P, Mukherjee R, Nieto D, de Bhroithe AO, Ong RA, Otte AN, Park N, Pohl M, Popkow A, Prokoph H, Quinn J, Ragan K, Rajotte J, Reyes LC, Reynolds PT, Richards GT, Roache E, Sembroski GH, Shahinyan K, Staszak D, Telezhinsky I, Tucci JV, Tyler J, Varlotta A, Vassiliev VV, Vincent S, Wakely SP, Weinstein A, Welsing R, Wilhelm A, Williams DA, Ackermann M, Ajello M, Albert A, Baldini L, Bastieri D, Bellazzini R, Bissaldi E, Bregeon J, Buehler R, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Cavazzuti E, Charles E, Chiang J, Ciprini S, Claus R, Cutini S, DAmmando F, de Angelis A, de Palma F, Dermer CD, Digel SW, Di Venere L, Drell PS, Favuzzi C, Franckowiak A, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Grenier IA, Guiriec S, Jogler T, Kuss M, Larsson S, Latronico L, Longo F, Loparco F, Lubrano P, Madejski GM, Mayer M, Mazziotta MN, Michelson PF, Mizuno T, Monzani ME, Morselli A, Murgia S, Nuss E, Ohsugi T, Ormes JF, Paneque D, Perkins JS, Piron F, Pivato G, Raino S, Razzano M, Reimer A, Reimer O, Ritz S, Schaal M, Sgro C, Siskind EJ, Spinelli P, Takahashi H, Tibaldo L, Tinivella M, Troja E, Vianello G, Werner M, Wood M, Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112))
Subjects: extragalactic background light, Flux, photon: absorption, Astrophysics, cosmic radiation: interaction, individual (PKS 1424+240)-cosmic background radiation, gamma rays: galaxies [BL Lacertae objects], 01 natural sciences, Absorption (logic), gamma ray: flux, 010303 astronomy & astrophysics, photon: flux, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Gamma ray, universe, large-area telescope, Extragalactic background light, statistics, VERITAS, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, BL Lacertae objects: individual (PKS 1424+240)-cosmic background radiation, gamma rays: galaxies, spectra, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, space-telescope mission, VHE, blazar, 0103 physical sciences, detector: optical, Blazar, energy cosmic-ray, Astrophysics::Galaxy Astrophysics, tev blazars, 010308 nuclear & particles physics, background, Institut für Physik und Astronomie, opacity, Astronomy and Astrophysics, Light curve, redshift, Redshift, radiation, pair production, 13. Climate action, Space and Planetary Science, ddc:520, spectral, BL Lacertae objects: individual (PKS 1424+240)-cosmic background radiation, gamma rays: galaxies, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], absorption, X-ray: detector, Fermi Gamma-ray Space Telescope
Abstract: We present deep VERITAS observations of the blazar PKS 1424+240, along with contemporaneous Fermi Large Area Telescope, Swift X-ray Telescope and Swift UV Optical Telescope data between 2009 February 19 and 2013 June 8. This blazar resides at a redshift of $z\ge0.6035$, displaying a significantly attenuated gamma-ray flux above 100 GeV due to photon absorption via pair-production with the extragalactic background light. We present more than 100 hours of VERITAS observations from three years, a multiwavelength light curve and the contemporaneous spectral energy distributions. The source shows a higher flux of (2.1$\pm0.3$)$\times10^{-7}$ ph m$^{-2}$s$^{-1}$ above 120 GeV in 2009 and 2011 as compared to the flux measured in 2013, corresponding to (1.02$\pm0.08$)$\times10^{-7}$ ph m$^{-2}$s$^{-1}$ above 120 GeV. The measured differential very high energy (VHE; $E\ge100$ GeV) spectral indices are $\Gamma=$3.8$\pm$0.3, 4.3$\pm$0.6 and 4.5$\pm$0.2 in 2009, 2011 and 2013, respectively. No significant spectral change across the observation epochs is detected. We find no evidence for variability at gamma-ray opacities of greater than $\tau=2$, where it is postulated that any variability would be small and occur on longer than year timescales if hadronic cosmic-ray interactions with extragalactic photon fields provide a secondary VHE photon flux. The data cannot rule out such variability due to low statistics., Comment: ApJL accepted March 17, 2014
Published: 2014

6. A luminous and isolated gamma-ray flare from the blazar B2 1215+30

Author: Veritas, Collaboration, Abeysekara, A. U., Archambault, S., Archer, A., Benbow, W., Bird, R., Buchovecky, M., Buckley, J. H., Bugaev, V., Byrum, K., Cerruti, M., Chen, X., Ciupik, L., Cui, W., Dickinson, H. J., Eisch, J. D., Errando, M., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Fortson, L., Furniss, A., Gillanders, G. H., Griffin, S., Grube, J., Hutten, M., Hakansson, N., Hanna, D., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kertzman, M., Kieda, D., Krause, M., Krennrich, F., Kumar, S., Lang, M. J., Gernot Maier, Mcarthur, S., Mccann, A., Meagher, K., Moriarty, P., Mukherjee, R., Nguyen, T., Nieto, D., Ong, R. A., Otte, A. N., Park, N., Pelassa, V., Pohl, M., Popkow, A., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rulten, C., Santander, M., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Wakely, S. P., Weiner, O. M., Weinstein, A., Wilhelm, A., Williams, D. A., Fermi-LAT Collaboration, Fegan, S., Giebels, B., Horan, D., Berdyugin, A., Kuan, J., Lindfors, E., Nilsson, K., Oksanen, A., Prokoph, H., Reinthal, R., Takalo, L., Zefi, F., AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), VERITAS, Fermi-LAT, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Laboratoire Leprince-Ringuet ( LLR ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -École polytechnique ( X ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Subjects: multiwavelength observations, 010504 meteorology & atmospheric sciences, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, swift ultraviolet/optical telescope, 01 natural sciences, law.invention, bl lacertae objects, law, Observatory, 0103 physical sciences, gamma rays: galaxies, Astrophysics::Solar and Stellar Astrophysics, ddc:530, MAGIC (telescope), Blazar, 010303 astronomy & astrophysics, Cherenkov radiation, 0105 earth and related environmental sciences, BL Lacertae objects: individual, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, particle-acceleration, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Institut für Physik und Astronomie, Astronomy and Astrophysics, source catalog, galaxies: jets, spectral energy-distributions, bl lacertae objects: individual (b2 1215+30, ver j1217+301), large-area telescope, Crab Nebula, Space and Planetary Science, active galactic nuclei, reconnection, ddc:520, galaxies: nuclei, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], discovery, Flare
Abstract: The astrophysical journal 836(2), 205 (2017). doi:10.3847/1538-4357/836/2/205, B2 1215+30 is a BL-Lac-type blazar that was first detected at TeV energies by the MAGIC atmospheric Cherenkov telescopes and subsequently confirmed by the Very Energetic Radiation Imaging Telescope Array System (VERITAS) observatory with data collected between 2009 and 2012. In 2014 February 08, VERITAS detected a large-amplitude flare from B2 1215+30 during routine monitoring observations of the blazar 1ES 1218+304, located in the same field of view. The TeV flux reached 2.4 times the Crab Nebula flux with a variability timescale of $\lt 3.6\,\mathrm{hr}$. Multiwavelength observations with Fermi-LAT, Swift, and the Tuorla Observatory revealed a correlated high GeV flux state and no significant optical counterpart to the flare, with a spectral energy distribution where the gamma-ray luminosity exceeds the synchrotron luminosity. When interpreted in the framework of a one-zone leptonic model, the observed emission implies a high degree of beaming, with Doppler factor $\delta \gt 10$, and an electron population with spectral index $p\lt 2.3$., Published by IOP Publ., Chicago, Ill. [u.a.]
Published: 2017

7. Search for Magnetically Broadened Cascade Emission From Blazars with VERITAS

Author: Veritas, Collaboration, Archambault, S., Archer, A., Benbow, W., Buchovecky, M., Bugaev, V., Cerruti, M., Connolly, M. P., Cui, W., Falcone, A., Fernández Alonso, M., Finley, J. P., Fleischhack, H., Fortson, L., Furniss, A., Griffin, S., Hütten, M., Hervet, O., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kieda, D., Krause, M., Krennrich, F., Lang, M. J., Lin, T. T. Y., Gernot Maier, Mcarthur, S., Moriarty, P., Nieto, D., O Brien, S., Ong, R. A., Otte, A. N., Pohl, M., Popkow, A., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rovero, A. C., Sadeh, I., Shahinyan, K., Staszak, D., Telezhinsky, I., Tyler, J., Wakely, S. P., Weinstein, A., Weisgarber, T., Wilcox, P., Wilhelm, A., Williams, D. A., and Zitzer, B.
Subjects: extragalactic background light, Photon, GALAXIES [GAMMA RAYS], Ciencias Físicas, Cosmic microwave background, Astrophysics, magnetic fields, 7. Clean energy, 01 natural sciences, purl.org/becyt/ford/1 [https], pair halos, 010303 astronomy & astrophysics, ACTIVE [GALAXIES], fields, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Gamma ray, cosmic voids, universe, large-area telescope, Extragalactic background light, Cascade, ddc:53, GENERAL [BL LACERTAE OBJECTS], Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, gamma rays: galaxies, 0103 physical sciences, 010306 general physics, Blazar, Astrophysics::Galaxy Astrophysics, bl lacertae objects: general, gamma-ray observations, tev blazars, Institut für Physik und Astronomie, Astronomy and Astrophysics, purl.org/becyt/ford/1.3 [https], MAGNETIC FIELDS, radiation, Astronomía, 13. Climate action, Space and Planetary Science, active galactic nuclei, ddc:520, Intergalactic travel
Abstract: We present a search for magnetically broadened gamma-ray emission around active galactic nuclei (AGN), using VERITAS observations of seven hard-spectrum blazars. A cascade process occurs when multi-TeV gamma rays from AGN interact with extragalactic background light (EBL) photons to produce electron-positron pairs, which then interact with cosmic microwave background (CMB) photons via inverse-Compton scattering to produce gamma rays. Due to the deflection of the electron-positron pairs, a non-zero intergalactic magnetic field (IGMF) would potentially produce detectable effects on the angular distribution of the cascade emission. In particular, an angular broadening compared to the unscattered emission could occur. Through non-detection of angularly broadened emission from 1ES 1218+304, the source with the largest predicted cascade fraction, we exclude a range of IGMF strengths around $10^{-14}$G at the 95% confidence level. The extent of the exclusion range varies with the assumptions made about the intrinsic spectrum of 1ES 1218+304 and the EBL model used in the simulation of the cascade process. All of the sources are used to set limits on the flux due to extended emission., Comment: Accepted for publication in The Astrophysical Journal
Published: 2017
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8. Multiwavelength follow-up of a rare IceCube neutrino multiplet

Author: Aartsen, M. G., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Samarai, I. Al, Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Archinger, M., Arg��elles, C., Auffenberg, J., Axani, S., Bai, X., Barwick, S. W., Baum, V., Bay, R., Beatty, J. J., Tjus, J. Becker, Becker, K. -H., BenZvi, S., Berley, D., Bernardini, E., Bernhard, A., Besson, D. Z., Binder, G., Bindig, D., Blaufuss, E., Blot, S., Bohm, C., B��rner, M., Bos, F., Bose, D., B��ser, S., Botner, O., Braun, J., Brayeur, L., Bretz, H. -P., Bron, S., Burgman, A., Carver, T., Casier, M., Cheung, E., Chirkin, D., Christov, A., Clark, K., Classen, L., Coenders, S., Collin, G. H., Conrad, J. M., Cowen, D. F., Cross, R., Day, M., de, J. P. A. M., R��, De Clercq, C., Rosendo, E. del Pino, Dembinski, H., De Ridder, S., Desiati, P., de Vries, K. D., de Wasseige, G., de With, M., DeYoung, T., di Lorenzo, V., Dujmovic, H., Dumm, J. P., Dunkman, M., Eberhardt, B., Ehrhardt, T., Eichmann, B., Eller, P., Euler, S., Evenson, P. A., Fahey, S., Fazely, A. R., Feintzeig, J., Felde, J., Filimonov, K., Finley, C., Flis, S., F��sig, C. -C., Franckowiak, A., Friedman, E., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Ghorbani, K., Giang, W., Gladstone, L., Glauch, T., Gl��senkamp, T., Goldschmidt, A., Gonzalez, J. G., Grant, D., Griffith, Z., Haack, C., Hallgren, A., Halzen, F., Hansen, E., Hansmann, T., Hanson, K., Hebecker, D., Heereman, D., Helbing, K., Hellauer, R., Hickford, S., Hignight, J., Hill, G. C., Hoffman, K. D., Hoffmann, R., Hoshina, K., Huang, F., Huber, M., Hultqvist, K., In, S., Ishihara, A., Jacobi, E., Japaridze, G. S., Jeong, M., Jero, K., Jones, B. J. P., Kang, W., Kappes, A., Karg, T., Karle, A., Katz, U., Kauer, M., Keivani, A., Kelley, J. L., Kheirandish, A., Kim, J., Kim, M., Kintscher, T., Kiryluk, J., Kittler, T., Klein, S. R., Kohnen, G., Koirala, R., Kolanoski, H., Konietz, R., K��pke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krings, K., Kroll, M., Kr��ckl, G., Kr��ger, C., Kunnen, J., Kunwar, S., Kurahashi, N., Kuwabara, T., Kyriacou, A., Labare, M., Lanfranchi, J. L., Larson, M. J., Lauber, F., Lesiak-Bzdak, M., Leuermann, M., Lu, L., L��nemann, J., Madsen, J., Maggi, G., Mahn, K. B. M., Mancina, S., Mandelartz, M., Maruyama, R., Mase, K., Maunu, R., McNally, F., Meagher, K., Medici, M., Meier, M., Menne, T., Merino, G., Meures, T., Miarecki, S., Micallef, J., Moment��, G., Montaruli, T., Moulai, M., Nahnhauer, R., Naumann, U., Neer, G., Niederhausen, H., Nowicki, S. C., Nygren, D. R., Pollmann, A. Obertacke, Olivas, A., O'Murchadha, A., Palczewski, T., Pandya, H., Pankova, D. V., Peiffer, P., Penek, ��., Pepper, J. A., Heros, C. P��rez de los, Pieloth, D., Pinat, E., Price, P. B., Przybylski, G. T., Quinnan, M., Raab, C., R��del, L., Rameez, M., Rawlins, K., Reimann, R., Relethford, B., Relich, M., Resconi, E., Rhode, W., Richman, M., Riedel, B., Robertson, S., Rongen, M., Rott, C., Ruhe, T., Ryckbosch, D., Rysewyk, D., Sabbatini, L., Herrera, S. E. Sanchez, Sandrock, A., Sandroos, J., Sarkar, S., Satalecka, K., Schlunder, P., Schmidt, T., Schoenen, S., Sch��neberg, S., Schumacher, L., Seckel, D., Seunarine, S., Soldin, D., Song, M., Spiczak, G. M., Spiering, C., Stachurska, J., Stanev, T., Stasik, A., Stettner, J., Steuer, A., Stezelberger, T., Stokstad, R. G., St��l, A., Str��m, R., Strotjohann, N. L., Sullivan, G. W., Sutherland, M., Taavola, H., Taboada, I., Tatar, J., Tenholt, F., Ter-Antonyan, S., Terliuk, A., Te��i��, G., Tilav, S., Toale, P. A., Tobin, M. N., Toscano, S., Tosi, D., Tselengidou, M., Tung, C. F., Turcati, A., Unger, E., Usner, M., Vandenbroucke, J., van Eijndhoven, N., Vanheule, S., van Rossem, M., van Santen, J., Vehring, M., Voge, M., Vogel, E., Vraeghe, M., Walck, C., Wallace, A., Wallraff, M., Wandkowsky, N., Waza, A., Weaver, Ch., Weiss, M. J., Wendt, C., Westerhoff, S., Whelan, B. J., Wickmann, S., Wiebe, K., Wiebusch, C. H., Wille, L., Williams, D. R., Wills, L., Wolf, M., Wood, T. R., Woolsey, E., Woschnagg, K., Xu, D. L., Xu, X. W., Xu, Y., Yanez, J. P., Yodh, G., Yoshida, S., Zoll, M., Stanek, K. Z., Shappee, B. J., Kochanek, C. S., Holoien, T. W. -S., Prieto, J. L., Fox, D. B., DeLaunay, J. J., Turley, C. F., Barthelmy, S. D., Lien, A. Y., M��sz��ros, P., Murase, K., Kocevski, D., Buehler, R., Giomi, M., Racusin, J. L., Albert, A., Alfaro, R., Alvarez, C., ��lvarez, J. D., Arceo, R., Arteaga-Vel��zquez, J. C., Solares, H. A. Ayala, Barber, A. S., Becerril, N. Baustista-Elivar A., Belmont-Moreno, E., Bernal, A., Brisbois, C., Caballero-Mora, K. S., Capistr��n, T., Carrami��ana, A., Casanova, S., Castillo, M., Cotti, U., de Le��n, S. Couti��o, de la Fuente, E., De Le��n, C., Hernandez, R. Diaz, D��az-V��lez, J. C., Dingus, B. L., DuVernois, M. A., Ellsworth, R. W., Engel, K., Fiorino, D. W., Fraija, N., Garc��a-Gonz��lez, J. A., Gerhardt, M., Mu��oz, A. Gonz��lez, Gonz��lez, M. M., Goodman, J. A., Hampel-Arias, Z., Harding, J. P., Hernandez, S., Hui, C. M., H��ntemeyer, P., Iriarte, A., Jardin-Blicq, A., Joshi, V., Kaufmann, S., Lara, A., Lauer, R. J., Lee, W. H., Lennarz, D., Vargas, H. Le��n, Linnemann, J. T., Raya, G. Luis, Luna-Garc��a, R., L��pez-Coto, R., Malone, K., Marinelli, S. S., Martinez, O., Martinez-Castellanos, I., Mart��nez-Castro, J., Mart��nez-Huerta, H., Matthews, J. A., Miranda-Romagnoli, P., Moreno, E., Mostaf��, M., Nellen, L., Newbold, M., Nisa, M. U., Noriega-Papaqui, R., Pelayo, R., Pretz, J., P��rez-P��rez, E. G., Ren, Z., Rho, C. D., Rivi��re, C., Rosa-Gonz��lez, D., Rosenberg, M., Greus, F. Salesa, Sandoval, A., Schneider, M., Schoorlemmer, H., Sinnis, G., Smith, A. J., Springer, R. W., Surajbali, P., Tibolla, O., Tollefson, K., Torres, I., Ukwatta, T. N., Villase��or, L., Weisgarber, T., Wisher, I. G., Wood, J., Yapici, T., Zepeda, A., Zhou, H., Arcavi, I., Hosseinzadeh, G., Howell, D. A., Valenti, S., McCully, C., Lipunov, V. M., Gorbovskoy, E. S., Tiurina, N. V., Balanutsa, P. V., Kuznetsov, A. S., Kornilov, V. G., Chazov, V., Budnev, N. M., Gress, O. A., Ivanov, K. I., Tlatov, A. G., Lopez, R. Rebolo, Serra-Ricart, M., Evans, P. A., Kennea, J. A., Gehrels, N., Osborne, J. P., Page, K. L., Abeysekara, A. U., Archer, A., Benbow, W., Bird, R., Brantseg, T., Bugaev, V., Cardenzana, J. V, Connolly, M. P., Cui, W., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Fortson, L., Furniss, A., Griffin, S., Grube, J., H��tten, M., Hervet, O., Holder, J., Hughes, G., Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kelley-Hoskins, N., Kertzman, M., Krause, M., Kumar, S., Lang, M. J., Lin, T. T. Y., McArthur, S., Moriarty, P., Mukherjee, R., Nieto, D., Ong, R. A., Otte, A. N., Pohl, M., Popkow, A., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rulten, C., Sadeh, I., Santander, M., Sembroski, G. H., Staszak, D., Tr��panier, S., Tyler, J., Wakely, S. P., Weinstein, A., Wilcox, P., Wilhelm, A., Williams, D. A., Zitzer, B., Bellm, E., Cano, Z., Gal-Yam, A., Kann, D. A., Ofek, E. O., Rigault, M., Soumagnac, M., National Science Foundation (US), Consejo Nacional de Ciencia y Tecnología (México), Universidad Nacional Autónoma de México, National Aeronautics and Space Administration (US), Villum Fonden, UK Space Agency, Physics, Elementary Particle Physics, Faculty of Sciences and Bioengineering Sciences, and Vriendenkring VUB
Subjects: Supernovae: general, Astrophysics, general [gamma-ray burst], 01 natural sciences, 7. Clean energy, LARGE-AREA TELESCOPE, law.invention, law, Observatory, all-sky survey, emission, Muon neutrino, X-rays: bursts, 010303 astronomy & astrophysics, media_common, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), GAMMA-RAY BURSTS, gamma-ray bursts, Gamma-ray burst: general, neutrinos, Galaxies: active, Supernova, large-area telescope, astroparticle physics, ALL-SKY SURVEY, tidal disruption, active [galaxies], Neutrino, Astrophysics - High Energy Astrophysical Phenomena, grb optical afterglows, general [supernovae], alert system, ACTIVE GALACTIC NUCLEI, Active galactic nucleus, bursts [X-rays], TIDAL DISRUPTION, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Telescope, 0103 physical sciences, luminosity function, Neutrinos, 010308 nuclear & particles physics, GRB OPTICAL AFTERGLOWS, Astronomy and Astrophysics, Astroparticle physics, Space and Planetary Science, swift-bat survey, Physics and Astronomy, 13. Climate action, Sky, LUMINOSITY FUNCTION, active galactic nuclei, ddc:520, SWIFT-BAT SURVEY, EMISSION, Fermi Gamma-ray Space Telescope, ALERT SYSTEM
Abstract: Full list of authors: Aartsen, M. G.; Ackermann, M.; Adams, J.; Aguilar, J. A.; Ahlers, M.; Ahrens, M.; Al Samarai, I.; Altmann, D.; Andeen, K.; Anderson, T.; Ansseau, I.; Anton, G.; Archinger, M.; Argüelles, C.; Auffenberg, J.; Axani, S.; Bai, X.; Barwick, S. W.; Baum, V. Bay, R.; Beatty, J. J.; Tjus, J. Becker; Becker, K. -H.; Benzvi, S.; Berley, D.; Bernardini, E.; Bernhard, A.; Besson, D. Z.; Binder, G.; Bindig, D.; Blaufuss, E.; Blot, S.; Bohm, C.; Börner, M.; Bos, F.; Bose, D.; Böser, S.; Botner, O.; Braun, J.; Brayeur, L.; Bretz, H. -P.; Bron, S.; Burgman, A.; Carver, T.; Casier, M.; Cheung, E.; Chirkin, D.; Christov, A.; Clark, K.; Classen, L.; Coenders, S.; Collin, G. H.; Conrad, J. M.; Cowen, D. F.; Cross, R.; Day, M.; de André, J. P. A. M.; de Clercq, C.; Del Pino Rosendo, E.; Dembinski, H.; De Ridder, S.; Desiati, P.; de Vries, K. D.; de Wasseige, G.; de With, M.; Deyoung, T.; di Lorenzo, V.; Dujmovic, H.; Dumm, J. P.; Dunkman, M.; Eberhardt, B.; Ehrhardt, T.; Eichmann, B.; Eller, P.; Euler, S.; Evenson, P. A.; Fahey, S.; Fazely, A. R.; Feintzeig, J.; Felde, J.; Filimonov, K.; Finley, C.; Flis, S.; Fösig, C. -C.; Franckowiak, A.; Friedman, E.; Fuchs, T.; Gaisser, T. K.; Gallagher, J.; Gerhardt, L.; Ghorbani, K.; Giang, W.; Gladstone, L.; Glauch, T.; Glüsenkamp, T.; Goldschmidt, A.; Gonzalez, J. G.; Grant, D.; Griffith, Z.; Haack, C.; Hallgren, A.; Halzen, F.; Hansen, E.; Hansmann, T.; Hanson, K.; Hebecker, D.; Heereman, D.; Helbing, K.; Hellauer, R.; Hickford, S.; Hignight, J.; Hill, G. C.; Hoffman, K. D.; Hoffmann, R.; Hoshina, K.; Huang, F.; Huber, M.; Hultqvist, K.; in, S.; Ishihara, A.; Jacobi, E.; Japaridze, G. S.; Jeong, M.; Jero, K.; Jones, B. J. P.; Kang, W.; Kappes, A.; Karg, T.; Karle, A.; Katz, U.; Kauer, M.; Keivani, A.; Kelley, J. L.; Kheirandish, A.; Kim, J.; Kim, M.; Kintscher, T.; Kiryluk, J.; Kittler, T.; Klein, S. R.; Kohnen, G.; Koirala, R.; Kolanoski, H.; Konietz, R.; Köpke, L.; Kopper, C.; Kopper, S.; Koskinen, D. J.; Kowalski, M.; Krings, K.; Kroll, M.; Krückl, G.; Krüger, C.; Kunnen, J.; Kunwar, S.; Kurahashi, N.; Kuwabara, T.; Kyriacou, A.; Labare, M.; Lanfranchi, J. L.; Larson, M. J.; Lauber, F.; Lesiak-Bzdak, M.; Leuermann, M.; Lu, L.; Lünemann, J.; Madsen, J.; Maggi, G.; Mahn, K. B. M.; Mancina, S.; Mandelartz, M.; Maruyama, R.; Mase, K.; Maunu, R.; McNally, F.; Meagher, K.; Medici, M.; Meier, M.; Menne, T.; Merino, G.; Meures, T.; Miarecki, S.; Micallef, J.; Momenté, G.; Montaruli, T.; Moulai, M.; Nahnhauer, R.; Naumann, U.; Neer, G.; Niederhausen, H.; Nowicki, S. C.; Nygren, D. R.; Obertacke Pollmann, A.; Olivas, A.; O'Murchadha, A.; Palczewski, T.; Pandya, H.; Pankova, D. V.; Peiffer, P.; Penek, Ö.; Pepper, J. A.; Pérez de Los Heros, C.; Pieloth, D.; Pinat, E.; Price, P. B.; Przybylski, G. T.; Quinnan, M.; Raab, C.; Rädel, L.; Rameez, M.; Rawlins, K.; Reimann, R.; Relethford, B.; Relich, M.; Resconi, E.; Rhode, W.; Richman, M.; Riedel, B.; Robertson, S.; Rongen, M.; Rott, C.; Ruhe, T.; Ryckbosch, D.; Rysewyk, D.; Sabbatini, L.; Sanchez Herrera, S. E.; Sandrock, A.; Sandroos, J.; Sarkar, S.; Satalecka, K.; Schlunder, P.; Schmidt, T.; Schoenen, S.; Schöneberg, S.; Schumacher, L.; Seckel, D.; Seunarine, S.; Soldin, D.; Song, M.; Spiczak, G. M.; Spiering, C.; Stachurska, J.; Stanev, T.; Stasik, A.; Stettner, J.; Steuer, A.; Stezelberger, T.; Stokstad, R. G.; Stößl, A.; Ström, R.; Strotjohann, N. L.; Sullivan, G. W.; Sutherland, M.; Taavola, H.; Taboada, I.; Tatar, J.; Tenholt, F.; Ter-Antonyan, S.; Terliuk, A.; Tešić, G.; Tilav, S.; Toale, P. A.; Tobin, M. N.; Toscano, S.; Tosi, D.; Tselengidou, M.; Tung, C. F.; Turcati, A.; Unger, E.; Usner, M.; Vandenbroucke, J.; van Eijndhoven, N.; Vanheule, S.; van Rossem, M.; van Santen, J.; Vehring, M.; Voge, M.; Vogel, E.; Vraeghe, M.; Walck, C.; Wallace, A.; Wallraff, M.; Wandkowsky, N.; Waza, A.; Weaver, Ch.; Weiss, M. J.; Wendt, C.; Westerhoff, S.; Whelan, B. J.; Wickmann, S.; Wiebe, K.; Wiebusch, C. H.; Wille, L.; Williams, D. R.; Wills, L.; Wolf, M.; Wood, T. R.; Woolsey, E.; Woschnagg, K.; Xu, D. L.; Xu, X. W.; Xu, Y.; Yanez, J. P.; Yodh, G.; Yoshida, S.; Zoll, M.; Asas-Sn Collaboration; Stanek, K. Z.; Shappee, B. J.; Kochanek, C. S.; Holoien, T. W. -S.; Prieto, J. L.; Astrophysical Multimessenger Observatory Network; Fox, D. B.; Delaunay, J. J.; Turley, C. F.; Barthelmy, S. D.; Lien, A. Y.; Mészáros, P.; Murase, K.; Fermi Collaboration; Kocevski, D.; Buehler, R.; Giomi, M.; Racusin, J. L.; Hawc Collaboration; Albert, A.; Alfaro, R.; Alvarez, C.; Álvarez, J. D.; Arceo, R.; Arteaga-Velázquez, J. C.; Ayala Solares, H. A.; Barber, A. S.; Baustista-Elivar, N.; Becerril, A.; Belmont-Moreno, E.; Bernal, A.; Brisbois, C.; Caballero-Mora, K. S.; Capistrán, T.; Carramiñana, A.; Casanova, S.; Castillo, M.; Cotti, U.; Coutiño de León, S.; de La Fuente, E.; de León, C.; Diaz Hernandez, R.; Díaz-Vélez, J. C.; Dingus, B. L.; Duvernois, M. A.; Ellsworth, R. W.; Engel, K.; Fiorino, D. W.; Fraija, N.; García-González, J. A.; Gerhardt, M.; González Muñoz, A.; González, M. M.; Goodman, J. A.; Hampel-Arias, Z.; Harding, J. P.; Hernandez, S.; Hui, C. M.; Hüntemeyer, P.; Iriarte, A.; Jardin-Blicq, A.; Joshi, V.; Kaufmann, S.; Lara, A.; Lauer, R. J.; Lee, W. H.; Lennarz, D.; León Vargas, H.; Linnemann, J. T.; Luis Raya, G.; Luna-García, R.; López-Coto, R.; Malone, K.; Marinelli, S. S.; Martinez, O.; Martinez-Castellanos, I.; Martínez-Castro, J.; Martínez-Huerta, H.; Matthews, J. A.; Miranda-Romagnoli, P.; Moreno, E.; Mostafá, M.; Nellen, L.; Newbold, M.; Nisa, M. U.; Noriega-Papaqui, R.; Pelayo, R.; Pretz, J.; Pérez-Pérez, E. G.; Ren, Z.; Rho, C. D.; Rivière, C.; Rosa-González, D.; Rosenberg, M.; Salesa Greus, F.; Sandoval, A.; Schneider, M.; Schoorlemmer, H.; Sinnis, G.; Smith, A. J.; Springer, R. W.; Surajbali, P.; Tibolla, O.; Tollefson, K.; Torres, I.; Ukwatta, T. N.; Villaseñor, L.; Weisgarber, T.; Wisher, I. G.; Wood, J.; Yapici, T.; Zepeda, A.; Zhou, H.; Lco Collaboration; Arcavi, I.; Hosseinzadeh, G.; Howell, D. A.; Valenti, S.; McCully, C.; Master Collaboration; Lipunov, V. M.; Gorbovskoy, E. S.; Tiurina, N. V.; Balanutsa, P. V.; Kuznetsov, A. S.; Kornilov, V. G.; Chazov, V.; Budnev, N. M.; Gress, O. A.; Ivanov, K. I.; Tlatov, A. G.; Rebolo Lopez, R.; Serra-Ricart, M.; Swift Collaboration; Evans, P. A.; Kennea, J. A.; Gehrels, N.; Osborne, J. P.; Page, K. L.; VERITAS Collaboration; Abeysekara, A. U.; Archer, A.; Benbow, W.; Bird, R.; Brantseg, T.; Bugaev, V.; v Cardenzana, J.; Connolly, M. P.; Cui, W.; Falcone, A.; Feng, Q.; Finley, J. P.; Fleischhack, H.; Fortson, L.; Furniss, A.; Griffin, S.; Grube, J.; Hütten, M.; Hervet, O.; Holder, J.; Hughes, G.; Humensky, T. B.; Johnson, C. A.; Kaaret, P.; Kar, P.; Kelley-Hoskins, N.; Kertzman, M.; Krause, M.; Kumar, S.; Lang, M. J.; Lin, T. T. Y.; McArthur, S.; Moriarty, P.; Mukherjee, R.; Nieto, D.; Ong, R. A.; Otte, A. N.; Pohl, M.; Popkow, A.; Pueschel, E.; Quinn, J.; Ragan, K.; Reynolds, P. T.; Richards, G. T.; Roache, E.; Rulten, C.; Sadeh, I.; Santander, M.; Sembroski, G. H.; Staszak, D.; Trépanier, S.; Tyler, J.; Wakely, S. P.; Weinstein, A.; Wilcox, P.; Wilhelm, A.; Williams, D. A.; Zitzer, B.; Bellm, E.; Cano, Z.; Gal-Yam, A.; Kann, D. A.; Ofek, E. O.; Rigault, M.; Soumagnac, M., On February 17, 2016, the IceCube real-time neutrino search identified, for the first time, three muon neutrino candidates arriving within 100 s of one another, consistent with coming from the same point in the sky. Such a triplet is expected once every 13.7 years as a random coincidence of background events. However, considering the lifetime of the follow-up program the probability of detecting at least one triplet from atmospheric background is 32%. Follow-up observatories were notified in order to search for an electromagnetic counterpart. Observations were obtained by Swift's X-ray telescope, by ASAS-SN, LCO and MASTER at optical wavelengths, and by VERITAS in the very-high-energy gamma-ray regime. Moreover, the Swift BAT serendipitously observed the location 100 s after the first neutrino was detected, and data from the Fermi LAT and HAWC observatory were analyzed. We present details of the neutrino triplet and the follow-up observations. No likely electromagnetic counterpart was detected, and we discuss the implications of these constraints on candidate neutrino sources such as gamma-ray bursts, core-collapse supernovae and active galactic nucleus flares. This study illustrates the potential of and challenges for future follow-up campaigns. © ESO, 2017. © ESO, 2017., The IceCube Collaboration acknowledges the support from the following agencies: US National Science Foundation-Office of Polar Programs, US National Science Foundation-Physics Division, University of Wisconsin Alumni Research Foundation, the Grid Laboratory of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin – Madison, the Open Science Grid (OSG) grid infrastructure; US Department of Energy, and National Energy Research Scientific Computing Center, the Louisiana Optical Network Initiative (LONI) grid computing resources; Natural Sciences and Engineering Research Council of Canada, WestGrid and Compute/Calcul Canada; Swedish Research Council, Swedish Polar Research Secretariat, Swedish National Infrastructure for Computing (SNIC), and Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF), Deutsche Forschungsgemeinschaft (DFG), Helmholtz Alliance for Astroparticle Physics (HAP), Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO), FWO Odysseus programme, Flanders Institute to encourage scientific and technological research in industry (IWT), Belgian Federal Science Policy Office (Belspo); University of Oxford, United Kingdom; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); the Swiss National Science Foundation (SNSF), Switzerland; National Research Foundation of Korea (NRF); Villum Fonden, Danish National Research Foundation (DNRF), Denmark This work made use of data supplied by the UK Swift Science Data Centre at the University of Leicester. Funding for the Swift project in the UK is provided by the UK Space Agency. Part of this work was facilitated by the GROWTH project, a partnership in international research and education, NSF PIRE Grant No. 1545949. ASAS-SN is supported by NSF grant AST-1515927. Development of ASAS-SN has been supported by NSF grant AST-0908816, the Center for Cosmology and AstroParticle Physics at the Ohio State University, the Mt. Cuba Astronomical Foundation, and by George Skestos. The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat à l’Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucléaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), high-energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Études Spatiales in France. The HAWC Collaboration acknowledges the support from: the US National Science Foundation (NSF); the US Department of Energy Office of High-Energy Physics; the Laboratory Directed Research and Development (LDRD) program of Los Alamos National Laboratory; Consejo Nacional de Ciencia y Tecnología (CONACyT), México (grants 271051, 232656, 260378, 179588, 239762, 254964, 271737, 258865, 243290, 132197), Laboratorio Nacional HAWC de rayos gamma; L’OREAL Fellowship for Women in Science 2014; Red HAWC, México; DGAPA-UNAM (grants IG100317, IN111315, IN111716-3, IA102715, 109916, IA102917); VIEP-BUAP; PIFI 2012, 2013, PROFOCIE 2014, 2015;the University of Wisconsin Alumni Research Foundation; the Institute of Geophysics, Planetary Physics, andSignatures at Los Alamos National Laboratory; Polish Science Centre grant DEC-2014/13/B/ST9/945; Coordinación de la Investigación Científica de la Universidad Michoacana. We thank Luciano Díaz and Eduardo Murrieta for technical support of the HAWC detector. Support for I. Arcavi was provided by NASA through the Einstein Fellowship Program, grant PF6-170148. D. A. Howell, C. McCully, and G. Hosseinzadeh are supported by NSF-1313484. This work makes use of observations from the LCO network. VERITAS research is supported by grants from the U.S. Department of Energy Office of Science, the U.S. National Science Foundation and the Smithsonian Institution, and by NSERC in Canada. VERITAS acknowledges the excellent work of the technical support staff at the Fred Lawrence Whipple Observatory and at the collaborating institutions in the construction and operation of the instrument. E. O. Ofek and A. Gal-Yam acknowledge a Minerva grant.
Published: 2017

9. First NuSTAR Observations of Mrk 501 within a Radio to TeV Multi-Instrument Campaign

Author: Furniss, A., Noda, K., Boggs, S., Chiang, J., Christensen, F., Craig, W., Giommi, P., Hailey, C., Harisson, F., Madejski, G., Nalewajko, K., PERRI, Matteo, Stern, D., Urry, M., VERRECCHIA, Francesco, Zhang, W., NuSTAR Team, Ahnen, M. L., ANTONELLI, Lucio Angelo, Antonelli, L. A., Antoranz, P., Babic, A., Banerjee, B., Bangale, P., Barres de Almeida, U., Barrio, J. A., Becerra González, J., Bednarek, W., Bernardini, E., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Chatterjee, A., Clavero, R., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., COVINO, Stefano, Da Vela, P., Dazzi, F., De Angelis, A., De Caneva, G., De Lotto, B., de Oña Wilhelmi, E., Delgado Mendez, C., Di Pierro, F., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Eisenacher Glawion, D., Elsaesser, D., Fernández-Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., García López, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giammaria, P., Godinović, N., González Muñoz, A., Guberman, D., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kellermann, H., Kodani, K., Konno, Y., Kubo, H., Kushida, J., LA BARBERA, ANTONINO, Lelas, D., Lewandowska, N., Lindfors, E., LOMBARDI, Saverio, Longo, F., López, M., López-Coto, R., López-Oramas, A., Lorenz, E., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Nakajima, D., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nilsson, K., Nishijima, K., Orito, R., Overkemping, A., PAIANO, Simona, Palacio, J., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Persic, M., Poutanen, J., Prada Moroni, P. G., PRANDINI, ELISA, Puljak, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rodriguez Garcia, J., Saito, T., Saito, K., Satalecka, K., Scapin, V., Schultz, C., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., STAMERRA, Antonio, Steinbring, T., Strzys, M., Takalo, L., Takami, H., TAVECCHIO, Fabrizio, Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Verguilov, V., Vovk, I., Will, M., Zanin, R., MAGIC Collaboration, Archer, A., Benbow, W., Bird, R., Biteau, J., Bugaev, V., Cardenzana, J. V., Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Dickinson, H. J., Dumm, J., Eisch, J. D., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Fortin, P., Fortson, L., Gerard, L., Gillanders, G. H., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Håkansson, N., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kertzman, M., Kieda, D., Krause, M., Krennrich, F., Lang, M. J., Lin, T. T. Y., Maier, G., McArthur, S., McCann, A., Meagher, K., Moriarty, P., Mukherjee, R., Nieto, D., O'Faoláin de Bhróithe, A., Ong, R. A., Park, N., Petry, D., Pohl, M., Popkow, A., Ragan, K., Ratliff, G., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Santander, M., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Vassiliev, V. V., Wakely, S. P., Weiner, O. M., Weinstein, A., Wilhelm, A., Williams, D. A., Zitzer, B., VERITAS Collaboration, Vince, O., Fuhrmann, L., Angelakis, E., Karamanavis, V., Myserlis, I., Krichbaum, T. P., Zensus, J. A., Ungerechts, H., Sievers, A., F-Gamma Consortium, The, Bachev, R., Böttcher, M., Chen, W. P., Damljanovic, G., Eswaraiah, C., Güver, T., Hovatta, T., Hughes, Z., Ibryamov, S. I., Joner, M. D., Jordan, B., Jorstad, S. G., Joshi, M., Kataoka, J., Kurtanidze, O. M., Kurtanidze, S. O., Lähteenmäki, A., Latev, G., Lin, H. C., Larionov, V. M., Mokrushina, A. A., Morozova, D. A., Nikolashvili, M. G., RAITERI, Claudia Maria, Ramakrishnan, V., Readhead, A. C. R., Sadun, A. C., Sigua, L. A., Semkov, E. H., Strigachev, A., Tammi, J., Tornikoski, M., Troitskaya, Y. V., Troitsky, I. S., VILLATA, Massimo, Department of Radio Science and Engineering, Aalto-yliopisto, Aalto University, Universitat de Barcelona, Furniss, A., Noda, K., Boggs, S., Chiang, J., Christensen, F., Craig, W., Giommi, P., Hailey, C., Harisson, F., Madejski, G., Nalewajko, K., Perri, M., Stern, D., Urry, M., Verrecchia, F., Zhang, W., Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Antoranz, P., Babic, A., Banerjee, B., Bangale, P., Barres De Almeida, U., J., A. Barrio, Becerra González, J., Bednarek, W., Bernardini, E., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Chatterjee, A., Clavero, R., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Caneva, G., De Lotto, B., De Oña Wilhelmi, E., Delgado Mendez, C., Di Pierro, F., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Eisenacher Glawion, D., Elsaesser, D., Fernández Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., García López, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giammaria, P., Godinović, N., González Muñoz, A., Guberman, D., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kellermann, H., Kodani, K., Konno, Y., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lewandowska, N., Lindfors, E., Lombardi, S., Longo, Francesco, López, M., López Coto, R., López Oramas, A., Lorenz, E., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Nakajima, D., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nilsson, K., Nishijima, K., Orito, R., Overkemping, A., Paiano, S., Palacio, J., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes Fortuny, X., Persic, M., Poutanen, J., Prada Moroni, P. G., Prandini, E., Puljak, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rodriguez Garcia, J., Saito, T., Saito, K., Satalecka, K., Scapin, V., Schultz, C., Schweizer, T., Shore, S. N., Sillanpä, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Steinbring, T., Strzys, M., Takalo, L., Takami, H., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Verguilov, V., Vovk, I., Will, M., Zanin, R., Archer, A., Benbow, W., Bird, R., Biteau, J., Bugaev, V., Cardenzana, J. V., Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Dickinson, H. J., Dumm, J., Eisch, J. D., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Fortin, P., Fortson, L., Gerard, L., Gillanders, G. H., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Håkansson, N., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kertzman, M., Kieda, D., Krause, M., Krennrich, F., Lang, M. J., Lin, T. T. Y., Maier, G., Mcarthur, S., Mccann, A., Meagher, K., Moriarty, P., Mukherjee, R., Nieto, D., O'Faoláin De Bhróithe, A., Ong, R. A., Park, N., Petry, D., Pohl, M., Popkow, A., Ragan, K., Ratliff, G., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Santander, M., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Vassiliev, V. V., Wakely, S. P., Weiner, O. M., Weinstein, A., Wilhelm, A., Williams, D. A., Zitzer, B., Vince, O., Fuhrmann, L., Angelakis, E., Karamanavis, V., Myserlis, I., Krichbaum, T. P., Zensus, J. A., Ungerechts, H., Sievers, A., Bachev, R., Böttcher, M., Chen, W. P., Damljanovic, G., Eswaraiah, C., Güver, T., Hovatta, T., Hughes, Z., Ibryamov, S. I., Joner, M. D., Jordan, B., Jorstad, S. G., Joshi, M., Kataoka, J., Kurtanidze, O. M., Kurtanidze, S. O., Lähteenmäki, A., Latev, G., Lin, H. C., Larionov, V. M., Mokrushina, A. A., Morozova, D. A., Nikolashvili, M. G., Raiteri, C. M., Ramakrishnan, V., A. C., R. Readhead, Sadun, A. C., Sigua, L. A., Semkov, E. H., Strigachev, A., Tammi, J., Tornikoski, M., Troitskaya, Y. V., Troitsky, I. S., Villata, M., ~, and 24420530 - Böttcher, Markus
Subjects: galaxie [X-rays], Astrophysics, galaxies BL Lacs, galaxies individual (Markarian 501), X-rays, 01 natural sciences, Luminosity, law.invention, bl lacertae objects, law, MAGIC (telescope), individual: Markarian 501 [galaxies], 010303 astronomy & astrophysics, astro-ph.HE, High Energy Astrophysical Phenomena (astro-ph.HE), BL Lacertae objects: general, galaxies: individual: Markarian 501, X-rays: galaxies, Physics, Astrophysics::Instrumentation and Methods for Astrophysics, fermi-lat, galaxies [X-rays], large-area telescope, BL Lacertae objects: general, galaxies: individual (Markarian 501), X-rays: galaxies, individual (Markarian 501) [galaxies], Spectral energy distribution, Electrónica, Física nuclear, Individual (Markarian 501), Raigs X, Electricidad, Astrophysics - High Energy Astrophysical Phenomena, Nuclear and High Energy Physics, BL Lac object, multiwavelength observations, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Optical telescope, Telescope, 0103 physical sciences, crab-nebula, Blazar, galaxies: individual (markarian 501), particle-acceleration, 010308 nuclear & particles physics, general [BL Lacertae objects], galaxies: individual: Markarian 501, Institut für Physik und Astronomie, Astronomy and Astrophysics, gamma-ray emission, Galaxies, Galàxies, x-ray, Space and Planetary Science, ddc:520, magic telescope, log-parabolic spectra, Fermi Gamma-ray Space Telescope
Abstract: We report on simultaneous broadband observations of the TeV-emitting blazar Markarian 501 between 1 April and 10 August 2013, including the first detailed characterization of the synchrotron peak with Swift and NuSTAR. During the campaign, the nearby BL Lac object was observed in both a quiescent and an elevated state. The broadband campaign includes observations with NuSTAR, MAGIC, VERITAS, the Fermi Large Area Telescope (LAT), Swift X-ray Telescope and UV Optical Telescope, various ground-based optical instruments, including the GASP-WEBT program, as well as radio observations by OVRO, Mets\"ahovi and the F-Gamma consortium. Some of the MAGIC observations were affected by a sand layer from the Saharan desert, and had to be corrected using event-by-event corrections derived with a LIDAR (LIght Detection And Ranging) facility. This is the first time that LIDAR information is used to produce a physics result with Cherenkov Telescope data taken during adverse atmospheric conditions, and hence sets a precedent for the current and future ground-based gamma-ray instruments. The NuSTAR instrument provides unprecedented sensitivity in hard X-rays, showing the source to display a spectral energy distribution between 3 and 79 keV consistent with a log-parabolic spectrum and hard X-ray variability on hour timescales. None (of the four extended NuSTAR observations) shows evidence of the onset of inverse-Compton emission at hard X-ray energies. We apply a single-zone equilibrium synchrotron self-Compton model to five simultaneous broadband spectral energy distributions. We find that the synchrotron self-Compton model can reproduce the observed broadband states through a decrease in the magnetic field strength coinciding with an increase in the luminosity and hardness of the relativistic leptons responsible for the high-energy emission., Comment: Accepted for publication in ApJ
Published: 2015

10. Very high energy outburst of markarian 501 in may 2009

Author: Aliu, E., Archambault, S., Bird, R., Weiner, O. M., Weinstein, A., Welsing, R., Wilhelm, Alina, Williams, D. A., Zitzer, B., Baring, M. G., Becerra Gónzalez, J., Cillis, A. N., Horan, D., Böttcher, M., Paneque, D., VERITAS Collaboration, Bouvier, A., Buchovecky, M., Buckley, J. H., Bugaev, V., Cardenzana, J. V., Cerruti, M., Cesarini, A., Chen, Xuhui, Archer, A., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dumm, J., Eisch, J. D., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Arlen, T., Fleischhack, H., Fortin, P., Fortson, L., Furniss, A., Galante, N., Gall, D., Gillanders, G. H., Griffin, S., Griffiths, S. T., Grube, J., Aune, T., Gyuk, G., Hütten, M., Håkansson, N., Holder, J., Hughes, Greg, Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kelley-Hoskins, N., Barnacka, A., Kertzman, M., Khassen, Y., Kieda, D., Krause, M., Krawczynski, H., Krennrich, F., Lang, M. J., Madhavan, A. S., Maier, G., McArthur, S., Behera, B., McCann, A., Meagher, K., Millis, J., Moriarty, P., Mukherjee, R., Nieto, D., O’Faoláin de Bhróithe, A., Ong, R. A., Orr, M., Otte, A. N., Beilicke, M., Pandel, D., Park, N., Pelassa, V., Perkins, J. S., Pichel, A., Pohl, Martin, Popkow, A., Quinn, J., Ragan, K., Reyes, L. C., Benbow, W., Reynolds, P. T., Roache, E., Rousselle, J., Rovero, A. C., Saxon, D. B., Sembroski, G. H., Shahinyan, K., Sheidaei, F., Skole, C., Smith, A. W., Berger, K., Staszak, D., Telezhinsky, I., Theiling, M., Todd, N. W., Tucci, J. V., Tyler, J., Varlotta, A., Vassiliev, V. V., Vincent, S., Wakely, S. P., Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), VERITAS, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire Leprince-Ringuet ( LLR ), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -École polytechnique ( X ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: High energy, GAMMA RAYS, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Ciencias Físicas, bl-lacertae objects, Flux, Astrophysics, 01 natural sciences, law.invention, purl.org/becyt/ford/1 [https], law, gamma ray: flux, 010303 astronomy & astrophysics, internal shocks, extragalactic radio-sources, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, spectral variability, Quiescent state, Optical polarization, large-area telescope, VERITAS, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Flare, multiwavelength observations, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, GLAST, blazar, polarization: rotation, BL-LAC OBJECTS, bl lacertae objects: individual: mrk 501, 0103 physical sciences, gamma rays: galaxies, polarization: optical, Blazar, optical polarization properties, 010308 nuclear & particles physics, Institut für Physik und Astronomie, Astronomy and Astrophysics, purl.org/becyt/ford/1.3 [https], gamma-ray emission, Astronomía, Crab Nebula, gamma ray: VHE, x-ray, 13. Climate action, Space and Planetary Science, active galactic nuclei, ddc:520, spectral, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: The very high energy (VHE; E $>$ 100 GeV) blazar Markarian 501 was observed between April 17 and May 5 (MJD 54938--54956), 2009, as part of an extensive multi-wavelength campaign from radio to VHE. Strong VHE $��$-ray activity was detected on May 1st with Whipple and VERITAS, when the flux (E $>$ 400 GeV) increased to 10 times the pre-flare baseline flux ($3.9{\times 10^{-11}}~{\rm ph~cm^{-2}~s^{-1}}$), reaching five times the flux of the Crab Nebula. This coincided with a decrease in the optical polarization and a rotation of the polarization angle by 15$^{\circ}$. This VHE flare showed a fast flux variation with an increase of a factor $\sim$4 in 25 minutes, and a falling time of $\sim$50 minutes. We present the observations of the quiescent state previous to the flare and of the high state after the flare, focusing on the flux and spectral variability from Whipple, VERITAS, Fermi-LAT, RXTE, and Swift combined with optical and radio data., 13 pages, 10 figures. Accepted for publication in Astronomy and Astrophysics
Published: 2016

11. Investigating broadband variability of the TeV blazar 1ES 1959+650

Author: Aliu, E., Archambault, S., Buckley, J. H., Bugaev, V., Cerruti, M., Chen, Xuhui, Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dumm, J., Eisch, J. D., Arlen, T., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Fleischhack, H., Fortin, P., Fortson, L., Furniss, Amy, Galante, N., Gillanders, G. H., Aune, T., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Håkansson, N., Hanna, D., Holder, J., Hughes, G., Hughes, Z., Humensky, T. B., Barnacka, A., Johnson, C. A., Kaaret, P., Kar, P., Kertzman, M., Khassen, Y., Kieda, D., Krawczynski, H., Krennrich, F., Lang, M. J., Madhavan, A. S., Beilicke, M., Majumdar, P., McArthur, S., McCann, A., Meagher, K., Millis, J., Moriarty, P., Mukherjee, R., Nelson, T., Nieto, D., O'Faoláin de Bhróithe, A., Benbow, W., Ong, R. A., Otte, A. N., Park, N., Perkins, J. S., Pohl, Martin, Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Rajotte, J., Berger, K., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Sadun, A., Santander, M., Sembroski, G. H., Shahinyan, K., Sheidaei, F., Smith, A. W., Bird, R., Staszak, D., Telezhinsky, I., Theiling, M., Tyler, J., Varlotta, A., Vassiliev, V. V., Vincent, S., Wakely, S. P., Weekes, T. C., Weinstein, A., Bouvier, A., Welsing, R., Wilhelm, A., Williams, D. A., Zitzer, B., Böttcher, Markus, Fumagalli, M., VERITAS Collaboration, Aliu, E, Archambault, S, Arlen, T, Aune, T, Barnacka, A, Beilicke, M, Benbow, W, Berger, K, Bird, R, Bouvier, A, Buckley, J, Bugaev, V, Cerruti, M, Chen, X, Ciupik, L, Collins-Hughes, E, Connolly, M, Cui, W, Dumm, J, Eisch, J, Falcone, A, Federici, S, Feng, Q, Finley, J, Fleischhack, H, Fortin, P, Fortson, L, Furniss, A, Galante, N, Gillanders, G, Griffin, S, Griffiths, S, Grube, J, Gyuk, G, Hakansson, N, Hanna, D, Holder, J, Hughes, G, Hughes, Z, Humensky, T, Johnson, C, Kaaret, P, Kar, P, Kertzman, M, Khassen, Y, Kieda, D, Krawczynski, H, Krennrich, F, Lang, M, Madhavan, A, Majumdar, P, Mcarthur, S, Mccann, A, Meagher, K, Millis, J, Moriarty, P, Mukherjee, R, Nelson, T, Nieto, D, O'Faolain De Bhroithe, A, Ong, R, Otte, A, Park, N, Perkins, J, Pohl, M, Popkow, A, Prokoph, H, Quinn, J, Ragan, K, Rajotte, J, Reyes, L, Reynolds, P, Richards, G, Roache, E, Sadun, A, Santander, M, Sembroski, G, Shahinyan, K, Sheidaei, F, Smith, A, Staszak, D, Telezhinsky, I, Theiling, M, Tyler, J, Varlotta, A, Vassiliev, V, Vincent, S, Wakely, S, Weekes, T, Weinstein, A, Welsing, R, Wilhelm, A, Williams, D, Zitzer, B, Bottcher, M, and Fumagalli, M
Subjects: multiwavelength observations, galaxies. [Gamma rays], Astrophysics::High Energy Astrophysical Phenomena, Flux, FOS: Physical sciences, Context (language use), Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, individual (1ES 1959+650) [BL Lacertae objects], 7. Clean energy, law.invention, Telescope, 1es-1959+650, law, gamma-ray astronomy, gamma rays: galaxies, strong flares, Blazar, Astrophysics::Galaxy Astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), BL lacertae objects: individual (1ES 1959+650), Institut für Physik und Astronomie, Astronomy and Astrophysics, Synchrotron, mkn 501, radiation, large-area telescope, Crab Nebula, synchrotron mirror model, x-ray, Space and Planetary Science, Gamma rays: galaxie, Spectral energy distribution, ddc:520, Astrophysics - High Energy Astrophysical Phenomena, Fermi Gamma-ray Space Telescope, energy
Abstract: We summarize broadband observations of the TeV-emitting blazar 1ES 1959+650, including optical R-band observations by the robotic telescopes Super-LOTIS and iTelescope, UV observations by Swift UVOT, X-ray observations by the Swift X-ray Telescope (XRT), high-energy gamma-ray observations with the Fermi Large Area Telescope (LAT) and very-high-energy (VHE) gamma-ray observations by VERITAS above 315 GeV, all taken between 17 April 2012 and 1 June 2012 (MJD 56034 and 56079). The contemporaneous variability of the broadband spectral energy distribution is explored in the context of a simple synchrotron self Compton (SSC) model. In the SSC emission scenario, we find that the parameters required to represent the high state are significantly different than those in the low state. Motivated by possible evidence of gas in the vicinity of the blazar, we also investigate a reflected-emission model to describe the observed variability pattern. This model assumes that the non-thermal emission from the jet is reflected by a nearby cloud of gas, allowing the reflected emission to re-enter the blob and produce an elevated gamma-ray state with no simultaneous elevated synchrotron flux. The model applied here, although not required to explain the observed variability pattern, represents one possible scenario which can describe the observations. As applied to an elevated VHE state of 66% of the Crab Nebula flux, observed on a single night during the observation period, the reflected-emission scenario does not support a purely leptonic non-thermal emission mechanism. The reflected emission model does, however, predict a reflected photon field with sufficient energy to enable elevated gamma-ray emission via pion production with protons of energies between 10 and 100 TeV., Accepted by ApJ
Published: 2014

12. Exceptionally Bright TEV Flares from the Binary LS I +61° 303

Author: VERITAS Collaboration, Archambault, S., Archer, A., Aune, T., Barnacka, A., Benbow, W., Bird, R., Buchovecky, M., Buckley, J. H., Bugaev, V., Byrum, K., Cardenzana, J. V., Cerruti, M., Chen, X., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dickinson, H. J., Dumm, J., Eisch, J. D., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Flinders, A., Fortin, P., Fortson, L., Furniss, A., Gillanders, G. H., Griffin, S., Grube, J., Gyuk, G., Huetten, M., Hakansson, N., Hanna, D., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kelley-Hoskins, N., Kertzman, M., Khassen, Y., Kieda, D., Krause, M., Krennrich, F., Kumar, S., Lang, M. J., Maier, G., McArthur, S., McCann, A., Meagher, K., Millis, J., Moriarty, P., Mukherjee, R., Nieto, D., O'Brien, S., de Bhroithe, A. O'Faolain, Ong, R. A., Otte, A. N., Pandel, D., Park, N., Pelassa, V., Pohl, M., Popkow, A., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rousselle, J., Rulten, C., Santander, M., Sembroski, G. H., Shahinyan, K., Smith, A. W., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Vincent, S., Wakely, S. P., Weiner, O. M., Weinstein, A., Wilhelm, A., Williams, D. A., and Zitzer, B.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, swift/xrt, FOS: Physical sciences, Binary number, Flux, gamma-ray binaries, Astrophysics, periodicity, Compact star, 01 natural sciences, emission, 0103 physical sciences, +61-degrees-303, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), parameters, Physics, lsi+61-degrees-303, 010308 nuclear & particles physics, Conjunction (astronomy), stars: individual (ls i+61 degrees 303, ver j0240+612), Astronomy and Astrophysics, fermi-lat, gamma-rays: general, Orbital period, Orbit, Crab Nebula, binaries: general, x-rays: binaries, 13. Climate action, Space and Planetary Science, ddc:520, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The TeV binary system LS I +61$^\circ$ 303 is known for its regular, non-thermal emission pattern which traces the orbital period of the compact object in its 26.5 day orbit around its B0 Ve star companion. The system typically presents elevated TeV emission around apastron passage with flux levels between 5% and 15% of the steady flux from the Crab Nebula (> 300 GeV). In this article, VERITAS observations of LS I +61$^\circ$ 303 taken in late 2014 are presented, during which bright TeV flares around apastron at flux levels peaking above 30% of the Crab Nebula flux were detected. This is the brightest such activity from this source ever seen in the TeV regime. The strong outbursts have rise and fall times of less than a day. The short timescale of the flares, in conjunction with the observation of 10 TeV photons from LS I +61$^\circ$ 303 during the flares, provides constraints on the properties of the accelerator in the source., 9 pages, 2 figures. Accepted for publication by ApJL
Published: 2016

13. LONG TERM OBSERVATIONS OF B2 1215+30 WITH VERITAS

Author: VERITAS collaboration, Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bird, R., Bouvier, A., Buckley, J. H., Bugaev, V., Cesarini, A., Ciupik, L., Connolly, M. P., Cui, W., Dumm, J., Errando, M., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Fortin, P., Fortson, L., Furniss, A., Galante, N., Gérard, L., Gillanders, G. H., Griffin, S., Grube, J., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Humensky, T. B., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krawczynski, H., Krennrich, F., Lang, M. J., Madhavan, A. S, Maier, G., Majumdar, P., McArthur, S., McCann, A., Moriarty, P., Mukherjee, R., Nieto, D., de Bhróithe, A. O'Faoláin, Ong, R. A., Orr, M., Otte, A. N., Park, N., Perkins, J. S., Pohl, M., Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Saxon, D. B., Sembroski, G. H., Skole, C., Smith, A. W., Soares-Furtado, M., Staszak, D., Telezhinsky, I., Tešić, G., Theiling, M., Varlotta, A., Vassiliev, V. V., Vincent, S., Wakely, S. P., Weekes, T. C., Weinstein, A., Welsing, R., Williams, D. A., Zitzer, B., Böttcher, M., Fumagalli, M., Jadhav, J., Aliu, E, Archambault, S, Arlen, T, Aune, T, Beilicke, M, Benbow, W, Bird, R, Bouvier, A, Buckley, J, Bugaev, V, Cesarini, A, Ciupik, L, Connolly, M, Cui, W, Dumm, J, Errando, M, Falcone, A, Federici, S, Feng, Q, Finley, J, Fortin, P, Fortson, L, Furniss, A, Galante, N, Gerard, L, Gillanders, G, Griffin, S, Grube, J, Gyuk, G, Hanna, D, Holder, J, Hughes, G, Humensky, T, Kaaret, P, Kertzman, M, Khassen, Y, Kieda, D, Krawczynski, H, Krennrich, F, Lang, M, Madhavan, A, Maier, G, Majumdar, P, Mcarthur, S, Mccann, A, Moriarty, P, Mukherjee, R, Nieto, D, De Bhroithe, A, Ong, R, Orr, M, Otte, A, Park, N, Perkins, J, Pohl, M, Popkow, A, Prokoph, H, Quinn, J, Ragan, K, Reyes, L, Reynolds, P, Richards, G, Roache, E, Saxon, D, Sembroski, G, Skole, C, Smith, A, Soares-Furtado, M, Staszak, D, Telezhinsky, I, Tesic, G, Theiling, M, Varlotta, A, Vassiliev, V, Vincent, S, Wakely, S, Weekes, T, Weinstein, A, Welsing, R, Williams, D, Zitzer, A, Bottcher, M, Fumagalli, M, Jadhav, A, and 24420530 - Böttcher, Markus
Subjects: Photon, individual (B2 1215+30 [BL Lacertae objects], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Flux, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, swift ultraviolet/optical telescope, 01 natural sciences, bl lacertae objects, gamma-ray astronomy, 0103 physical sciences, simultaneous multiwavelength observations, MAGIC (telescope), Blazar, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Spectral index, 010308 nuclear & particles physics, general [BL Lacertae objects], background-radiation, Astronomy and Astrophysics, BL Lacertae objects: general, lac objects, spectral energy-distributions, w-comae, VER J1217+301), bl lacertae objects: individual (b2 1215+30, ver j1217+301), large-area telescope, Cover (topology), Space and Planetary Science, active galactic nuclei, individual (B2 1215+30, VER J1217+301) [BL Lacertae objects], Spectral energy distribution, ddc:520, Astrophysics - High Energy Astrophysical Phenomena, BL Lac object
Abstract: We report on VERITAS observations of the BL Lac object B2 1215+30 between 2008 and 2012. During this period, the source was detected at very high energies (VHE; E > 100 GeV) by VERITAS with a significance of $8.9\sigma$ and showed clear variability on time scales larger than months. In 2011, the source was found to be in a relatively bright state and a power-law fit to the differential photon spectrum yields a spectral index of $3.6 \pm 0.4_{\mathrm{stat}} \pm 0.3_{\mathrm{syst}}$ with an integral flux above 200 GeV of $(8.0 \pm 0.9_{\mathrm{stat}} \pm 3.2_{\mathrm{syst}}) \times 10^{-12}\, \mathrm{cm}^{-2} \mathrm{s}^{-1}$. No short term variability could be detected during the bright state in 2011. Multi-wavelength data were obtained contemporaneous with the VERITAS observations in 2011 and cover optical (Super-LOTIS, MDM, Swift-UVOT), X-ray (Swift-XRT), and gamma-ray (Fermi-LAT) frequencies. These were used to construct the spectral energy distribution (SED) of B2 1215+30. A one-zone leptonic model is used to model the blazar emission and the results are compared to those of MAGIC from early 2011 and other VERITAS-detected blazars. The SED can be well reproduced with model parameters typical for VHE-detected BL Lacs., Comment: 34 pages, 5 figures, accepted for publication in ApJ
Published: 2013

14. UPPER LIMITS FROM FIVE YEARS OF BLAZAR OBSERVATIONS WITH THE VERITAS CHERENKOV TELESCOPES

Author: Archambault, S., Archer, A., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Eisch, J. D., Errando, M., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Benbow, W., Fortin, P., Fortson, L., Furniss, A., Gillanders, G. H., Griffin, S., Grube, J., Gyuk, G., Hütten, M., Håkansson, N., Hanna, D., Bird, R., Holder, J., Humensky, T. B., Johnson, C. A., Kaaret, P., Kar, P., Kelley-Hoskins, N., Kertzman, M., Kieda, D., Krause, Maria, Krennrich, F., Biteau, J., Kumar, S., Lang, M. J., Maier, G., McArthur, S., McCann, A., Meagher, K., Moriarty, P., Mukherjee, R., Nguyen, T., Nieto, D., Buchovecky, M., O’Faoláin de Bhróit, A., Ong, R. A., Otte, A. N., Park, N., Perkins, J. S., Pichel, A., Pohl, Martin, Popkow, A., Pueschel, E., Quinn, J., Buckley, J. H., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rovero, A. C., Santander, M., Sembroski, G. H., Shahinyan, K., Smith, A. W., Staszak, D., Bugaev, V., Telezhinsky, I., Tucci, J. V., Tyler, J., Vincent, S., Wakely, S. P., Weiner, O. M., Weinstein, A., Williams, D. A., Zitzer, B., Fumagalli, M., Byrum, K., Prochaska, J. X., VERITAS Collaboration, Cerruti, M., Archambault, S, Archer, A, Benbow, W, Bird, R, Biteau, J, Buchovecky, M, Buckley, J, Bugaev, V, Byrum, K, Cerruti, M, Chen, X, Ciupik, L, Connolly, M, Cui, W, Eisch, J, Errando, M, Falcone, A, Feng, Q, Finley, J, Fleischhack, H, Fortin, P, Fortson, L, Furniss, A, Gillanders, G, Griffin, S, Grube, J, Gyuk, G, Hutten, M, Hakansson, N, Hanna, D, Holder, J, Humensky, T, Johnson, C, Kaaret, P, Kar, P, Kelley-Hoskins, N, Kertzman, M, Kieda, D, Krause, M, Krennrich, F, Kumar, S, Lang, M, Maier, G, Mcarthur, S, Mccann, A, Meagher, K, Moriarty, P, Mukherjee, R, Nguyen, T, Nieto, D, O'Faolain De Bhroithe, A, Ong, R, Otte, A, Park, N, Perkins, J, Pichel, A, Pohl, M, Popkow, A, Pueschel, E, Quinn, J, Ragan, K, Reynolds, P, Richards, G, Roache, E, Rovero, A, Santander, M, Sembroski, G, Shahinyan, K, Smith, A, Staszak, D, Telezhinsky, I, Tucci, J, Tyler, J, Vincent, S, Wakely, S, Weiner, O, Weinstein, A, Williams, D, Zitzer, B, Fumagalli, M, and Prochaska, J
Subjects: spectrum radio quasars, Ciencias Físicas, bl-lacertae objects, Flux, Field of view, Astrophysics, fermi-lat blazars, 01 natural sciences, law.invention, purl.org/becyt/ford/1 [https], Observatory, law, all-sky survey, gamma rays: galaxie, optical spectroscopy, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Astrophysics::Instrumentation and Methods for Astrophysics, non-thermal [radiation mechanisms], large-area telescope, active [galaxies], galaxies [gamma rays], Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, energy gamma-rays, Telescope, gamma rays: galaxies, 0103 physical sciences, complete sample, Blazar, Cherenkov radiation, general [BL Lacertae objects], 010308 nuclear & particles physics, Institut für Physik und Astronomie, Astronomy and Astrophysics, purl.org/becyt/ford/1.3 [https], BL Lacertae objects: general, radiation mechanisms: non-thermal, Cherenkov Telescope Array, Redshift, Astronomía, x-ray, Space and Planetary Science, active galactic nuclei, ddc:520
Abstract: The astronomical journal 151(6), 142(2016). doi:10.3847/0004-6256/151/6/142, Between the beginning of its full-scale scientific operations in 2007 and 2012, the VERITAS Cherenkov telescope array observed more than 130 blazars; of these, 26 were detected as very-high-energy (VHE; E > 100 GeV) γ-ray sources. In this work, we present the analysis results of a sample of 114 undetected objects. The observations constitute a total live-time of ~570 hr. The sample includes several unidentified Fermi-Large Area Telescope (LAT) sources (located at high Galactic latitude) as well as all the sources from the second Fermi-LAT catalog that are contained within the field of view of the VERITAS observations. We have also performed optical spectroscopy measurements in order to estimate the redshift of some of these blazars that do not have spectroscopic distance estimates. We present new optical spectra from the Kast instrument on the Shane telescope at the Lick observatory for 18 blazars included in this work, which allowed for the successful measurement or constraint on the redshift of four of them. For each of the blazars included in our sample, we provide the flux upper limit in the VERITAS energy band. We also study the properties of the significance distributions and we present the result of a stacked analysis of the data set, which shows a 4σ excess., Published by Univ. of Chicago Press, Journals Division10693, Chicago, Ill.
Published: 2016

15. Stand-alone cosmic muon reconstruction before installation of the CMS silicon strip tracker

Author: Adam, W, Bergauer, T, Dragicevic, M, Friedl, M, Fruhwirth, R, Hansel, S, Hrubec, J, Krammer, M, Oberegger, M, Pernicka, M, Schmid, S, Giammanco, A, Boudoul, G, Saizu, MA, Siegrist, P, Wagner, SR, Spagnolo, P, Bagby, L, Schwering, G, Dirkes, G, Lae, CK, Shah, Y, Pierschel, G, Demaria, N, Castaldi, R, Bhat, PC, Burkett, K, Cihangir, S, Rolandi, G, Tenchini, R, Cerri, C, Gutsche, O, Hahn, KA, Steiner, S, Jensen, H, Albergo, S, Tessaro, M, Fahrer, M, Johnson, M, Luzhetskiy, N, Sparti, V, Mason, D, Preda, M, Olzem, J, Dumitrache, F, Delattre, M, Bruno, G, Chabanat, E, Ceccanti, M, Rudolph, M, Didierjean, F, Miao, T, Frey, M, Uhl, D, Petrucciani, G, Moccia, S, Luukka, PR, Benotto, F, Tropea, P, Noeding, C, Ronzhin, A, Skup, E, Spalding, WJ, Manolescu, F, Mills, C, Stoye, M, Spiegel, L, Farano, R, Villella, I, Manna, N, Devroede, O, Brianzi, M, Sutera, C, Tkaczyk, S, Sala, G, Yumiceva, F, Karaevski, S, Troska, J, Zatserklyaniy, A, Wilke, L, Sung, K, Esser, H, Chabert, EC, Tolaini, S, Dietch, J, Anttila, E, Betchart, B, Wingham, M, Van Hove, P, Karpinski, W, Demina, R, Gotra, Y, Korjenevski, S, Leonardo, N, Bisello, D, Miner, D, Butt, S, Orbaker, D, Tavernier, S, Wittmer, B, Flugge, G, Furgeri, A, Cucoanes, AS, Garberson, J, Christofek, L, Ljuslin, C, Hooper, R, Civinini, C, De Mattia, M, Ageron, M, Tricomi, A, Tsirou, A, Migliore, E, Gregoire, G, Landsberg, G, Nguyen, D, Crook, A, Mannelli, M, Abbas, M, Narain, M, Lowette, S, Speer, T, Boccali, T, Venturi, A, Giubilato, P, Tsang, KV, CMS Collaboration, Dell'Orso, R, Keutgen, T, Covarelli, R, Vander Donckt, M, Tomalin, I, Wlochal, M, Hartmann, F, Romero, A, Chierici, R, Creanza, D, Kcira, D, Loreti, M, Fontaine, JC, Lemaitre, V, Steinbruck, G, Heyninck, J, Hale, D, Michotte, D, Militaru, O, Piotrzkowski, K, Quertermont, L, Kraan, A, Moulik, T, Roberfroid, V, Vasey, F, Thomas, M, Balestri, G, Kukulies, C, Giusti, S, Dobur, D, Rouby, X, Giorgi, MA, Teyssier, D, Incandela, H, Daubie, E, Rebassoo, F, Contardo, D, Giudice, N, Heier, S, Masetti, L, Anghel, IM, Buhmann, P, Della Negra, R, Chiorboli, M, De Wolf, EA, Dupasquier, T, Gelin, G, Giraud, N, Zorba, O, Verdini, PG, Guillot, G, Cole, JE, Estre, N, Meschini, M, Ciulli, V, Charaf, O, Adler, V, Bazterra, VE, Haroutunian, R, Goitom, I, Lumb, N, Hammad, GH, Vos, M, Dutta, S, Incandela, J, Regenfus, C, Gillissen, C, Perries, S, Schirra, F, De Callatay, B, Hobson, PR, Rommerskirchen, T, Trocme, B, Vanzetto, S, Borgia, MA, Marchioro, A, Zaccarelli, L, Agram, JL, Blaes, R, Ahmed, I, Hermanns, T, Calzolari, F, Jaditz, S, Paoletti, S, Mattiazzo, S, Robmann, P, Hoffmann, KH, Dewulf, JP, Waltenberger, W, Avanzini, C, Silvestris, L, Heydhausen, D, Khomenkov, V, Gerber, CE, Jahn, D, Kaussen, G, Linn, A, Perchalla, L, Buchmuller, O, Michal, S, Poettgens, M, Kalavase, P, Delmeire, E, Potenza, R, Breuker, H, Akhtar, I, Pooth, O, Foa, L, Stahl, A, Khalatian, S, Zoeller, MH, Tran, NV, Kaminski, J, Nigro, M, Reid, ID, Czellar, S, Cerati, GB, Ledermann, B, Bosi, F, Hosselet, J, Cardaci, M, Liamsuwan, T, Muller, S, Mersi, S, Muller, T, Richman, J, Schilling, FP, Lomtadze, T, Mariani, F, Maazouzi, C, Klein, K, Engstrom, P, Simonis, HJ, Steck, P, Anagnostou, G, Albert, E, Shabalina, E, Lamb, J, D'Alessandro, R, Zhukov, V, Cariola, P, Beissel, F, Nguyen, H, De Robertis, G, Ferorelli, R, Alagoz, E, Teodorescu, L, D'Hondt, J, Beaumont, W, Fiore, L, Maes, J, Focardi, E, Baringer, P, Lungu, GA, Basti, A, Mc Guinness, C, Paccagnella, A, Strub, R, Berst, JD, Mirabito, L, Lariccia, P, Frosali, S, Harkonen, J, Genta, C, Hashemi, M, Landi, G, Lenzi, P, Coughlan, JA, De Boer, W, Macchiolo, A, Bean, A, Stark, R, Church, I, Schmidt, A, Magini, N, Ronga, F, Parrini, G, Karimaki, V, Scarlini, E, Baulieu, G, Pantano, D, Vander Velde, C, Widl, E, Sarkar, S, Pozzobon, N, Castello, R, de Langhe, E, Goerlach, U, Tosi, M, Bilei, GM, Hanson, G, Checcucci, B, Fano, L, Cattai, A, Edera, LM, My, S, Noto, F, Butz, E, Servoli, L, Clerbaux, B, Costa, S, Jeng, GY, Kostesmaa, J, Florins, B, Martinelli, G, Ambroglini, F, Babucci, E, Sguazzoni, G, Robinson, R, Benedetti, D, Biasini, M, Kreyer, S, Ostapchuk, A, Graehling, P, Caponeri, B, Raupach, F, Moggi, A, Kuronen, A, Delaere, C, Muffat-Joly, J, Martin, C, Benucci, L, Tempesta, P, Liu, H, Gennai, S, Palla, F, Flucke, G, De Lentdecker, G, Juillot, P, Palmonari, F, Petragnani, G, Rubinstein, N, Profeti, A, Lampen, T, Drouhin, F, Ribnik, J, Nikolic, M, Raffaelli, F, Van Mulders, P, Rizzi, D, Hamdorf, R, Sanguinetti, G, Bocci, A, Feld, L, Brom, JM, De Weirdt, S, Cazzola, U, Amsler, C, Gross, L, De Filippis, N, Fiori, F, Linari, S, Massa, M, Messineo, A, Gay, APR, Bainbridge, R, Berretta, L, Cecchi, R, Azzi, P, Segneri, G, Olivetto, C, Bracci, F, Hauk, J, Bock, E, Tonelli, G, Azzurri, P, Magazzu, G, Tuominen, E, Vanlaer, P, Bernardini, J, Chen, J, De Palma, M, Borrello, L, Tuve, C, Eppard, M, Klanner, R, Taghavi, S, Pasztor, G, Maenpaa, T, Onnela, A, Mantovani, G, Sigaud, C, Gateau, M, Bacchetta, N, Brauer, R, Maggi, G, Gill, K, Giolo-Nicollerat, AS, Harris, P, Grabit, R, Pein, U, Everaerts, P, Gritsan, AV, Honma, A, Sprenger, D, Huhtinen, M, Candelori, A, Kloukinas, K, Paillard, C, Guardone, N, Zito, G, Pal, I, Kyre, S, Giordano, D, Postolache, V, Pernot, JF, Petagna, P, Petit, P, Piccut, C, Wastiels, C, Simms, L, Abbaneo, D, Sentenac, D, Pioppi, M, Selvaggi, G, Costa, M, Bouhali, O, Broccolo, B, Mozer, M, Goorens, R, Postema, H, Van Mechelen, P, Steininger, H, Ranieri, R, Linden, T, Santocchia, A, Ricci, D, Giassi, A, Cripps, N, Dorigo, T, Sanhueza, S, Blum, P, Satpathy, A, Ligabue, F, D'Alfonso, M, Fulcher, J, Serban, AT, Galanti, M, Bagliesi, G, Hall, G, Noy, M, Pesaresi, M, Kaminskiy, A, Bonnevaux, A, Tuominiemi, J, Radicci, V, Maletta, F, Raymond, DM, Slav, A, Sharp, P, Van Lancker, L, Marcantonini, M, Stringer, R, Hinchey, C, Spiga, D, Rizzi, A, Mangano, B, Affolder, K, Affolder, T, Allen, A, Weber, M, Rochet, J, Kortesmaa, J, Barge, D, Bianucci, S, Chiochia, V, Lounis, A, Mammini, P, Schael, S, Pandoulas, D, Burke, S, Ernenwein, JP, Callahan, D, Schleper, P, Yang, Z, Campagnari, C, Bloch, C, Staszak, D, Marage, P, Nahn, S, Reznikov, S, Syed, A, Zerev, E, Stoner, J, Kottelat, LJ, Elgammal, S, Wickens, J, Stuart, D, Swain, S, Vlimant, JR, Soldani, A, Dierlamm, A, White, D, Kartashov, D, Ulmer, KA, Bonnet, JL, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), informatique, Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Groupe de Recherche en Physique des Hautes Energies (GRPHE), Institut Universitaire de Technologie de Colmar-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), CMS, Adam, W., Bergauer, T., Dragicevic, M., Friedl, M., Fruehwirth, R., Haensel, S., Hrubec, J., Krammer, M., Oberegger, M., Pernicka, M., Schmid, S., Stark, R., Steininger, H., Uhl, D., Waltenberger, W., Widl, E., Van Mechelen, P., Cardaci, M., Beaumont, W., de Langhe, E., de Wolf, E. A., Delmeire, E., Hashemi, M., Bouhali, O., Charaf, O., Clerbaux, B., Dewulf, J. P., Elgammal, S., Hammad, G., de Lentdecker, G., Marage, P., Vander Velde, C., Vanlaer, P., Wickens, J., Adler, V., Devroede, O., De Weirdt, S., D'Hondt, J., Goorens, R., Heyninck, J., Maes, J., Mozer, M., Tavernier, S., Van Lancker, L., Van Mulders, P., Villella, I., Wastiels, C., Bonnet, J. L., Bruno, G., De Callatay, B., Florins, B., Giammanco, A., Gregoire, G., Keutgen, T. h., Kcira, D., Lemaitre, V., Michotte, D., Militaru, O., Piotrzkowski, K., Quertermont, L., Roberfroid, V., Rouby, X., Teyssier, D., Daubie, E., Anttila, E., Czellar, S., Engstroem, P., Harkonen, J., Karimaki, V., Kostesmaa, J., Kuronen, A., Lampen, T., Linden, T., Luukka, P. R., Maenpaa, T., Michal, S., Tuominen, E., Tuominiemi, J., Ageron, M., Baulieu, G., Bonnevaux, A., Boudoul, G., Chabanat, E., Chabert, E., Chierici, R., Contardo, D., Della Negra, R., Dupasquier, T., Gelin, G., Giraud, N., Guillot, G., Estre, N., Haroutunian, R., Lumb, N., Perries, S., Schirra, F., Trocme, B., Vanzetto, S., Agram, J. L., Blaes, R., Drouhin, F., Ernenwein, J. P., Fontaine, J. C., Berst, J. D., Brom, J. M., Didierjean, F., Goerlach, U., Graehling, P., Gross, L., Hosselet, J., Juillot, P., Lounis, A., Maazouzi, C., Olivetto, C., Strub, R., Van Hove, P., Anagnostou, G., Brauer, R., Esser, H., Feld, L., Karpinski, W., Klein, K., Kukulies, C., Olzem, J., Ostapchuk, A., Pandoulas, D., Pierschel, G., Raupach, F., Schael, S., Schwering, G., Sprenger, D., Thomas, M., Weber, M., Wittmer, B., Wlochal, M., Beissel, F., Bock, E., Flugge, G., Gillissen, C., Hermanns, T., Heydhausen, D., Jahn, D., Kaussen, G., Linn, A., Perchalla, L., Poettgens, M., Pooth, O., Stahl, A., Zoeller, M. H., Buhmann, P., Butz, E., Flucke, G., Hamdorf, R., Hauk, J., Klanner, R., Pein, U., Schleper, P., Steinbrueck, G., Bluem, P., De Boer, W., Dierlamm, A., Dirkes, G., Fahrer, M., Frey, M., Furgeri, A., Hartmann, F., Heier, S., Hoffmann, K. H., Kaminski, J., Ledermann, B., Liamsuwan, T., Mueller, S., Mueller, T. h., Schilling, F. P., Simonis, H. J., Steck, P., Zhukov, V., Cariola, P., De Robertis, G., Ferorelli, R., Fiore, L., Preda, M., Sala, G., Silvestris, L., Tempesta, P., Zito, G., Creanza, D., De Filippis, N., De Palma, M., Giordano, D., Maggi, G., Manna, N., My, S., Selvaggi, G., Albergo, S., Chiorboli, M., Costa, S., Galanti, M., Giudice, N., Guardone, N., Noto, F., Potenza, R., Saizu, M. A., Sparti, V., Sutera, C., Tricomi, A., Tuve, C., Brianzi, M., Civinini, C., Maletta, F., Manolescu, F., Meschini, M., Paoletti, S., Sguazzoni, G., Broccolo, B., Ciulli, V., D'Alessandro, R., Focardi, E., Frosali, S., Genta, C., Landi, G., Lenzi, P., Macchiolo, A., Magini, N., Parrini, G., Scarlini, E., Cerati, G., Azzi, P., Bacchetta, N., Candelori, A., Dorigo, T., Kaminsky, A., Karaevski, S., Khomenkov, V., Reznikov, S., Tessaro, M., Bisello, D., De Mattia, M., Giubilato, P., Loreti, M., Mattiazzo, S., Nigro, M., Paccagnella, A., Pantano, D., Pozzobon, N., Tosi, M., Bilei, G. M., Checcucci, B., Fano, L., Servoli, L., Ambroglini, F., Babucci, E., Benedetti, D., Biasini, M., Caponeri, B., Covarelli, R., Giorgi, M., Lariccia, P., Mantovani, G., Marcantonini, M., Postolache, V., Santocchia, A., Spiga, D., Bagliesi, G., Balestri, G., Berretta, L., Bianucci, S., Boccali, T., Bosi, F., Bracci, F., Castaldi, R., Ceccanti, M., Cecchi, R., Cerri, C., Cucoanes, A. S., Dell'Orso, R., Dobur, D., Dutta, S., Giassi, A., Giusti, S., Kartashov, D., Kraan, A., Lomtadze, T., Lungu, G. A., Magazzu, G., Mammini, P., Mariani, F., Martinelli, G., Moggi, A., Palla, F., Palmonari, F., Petragnani, G., Profeti, A., Raffaelli, F., Rizzi, D., Sanguinetti, G., Sarkar, S., Sentenac, D., Serban, A. T., Slav, A., Soldani, A., Spagnolo, P., Tenchini, R., Tolaini, S., Venturi, A., Verdini, P. G., Vos, M., Zaccarelli, L., Avanzini, C., Basti, A., Benucci, L., Bocci, A., Cazzola, U., Fiori, F., Linari, S., Massa, M., Messineo, A., Segneri, G., Tonelli, G., Azzurri, P., Bernardini, J., Borrello, L., Calzolari, Federico, Foa, L., Gennai, S., Ligabue, Franco, Petrucciani, G., Rizzi, A., Yang, Z., Benotto, F., Demaria, N., Dumitrache, F., Farano, R., Borgia, M. A., Castello, R., Costa, M., Migliore, E., Romero, A., Abbaneo, D., Abbas, M., Ahmed, I., Akhtar, I., Albert, E., Bloch, C., Breuker, H., Butt, S., Buchmuller, O., Cattai, A., Delaere, C., Delattre, M., Edera, L. M., Engstrom, P., Eppard, M., Gateau, M., Gill, K., Giolo Nicollerat, A. S., Grabit, R., Honma, A., Huhtinen, M., Kloukinas, K., Kortesmaa, J., Kottelat, L. J., Leonardo, N., Ljuslin, C., Mannelli, M., Masetti, L., Marchioro, A., Mersi, S., Mirabito, L., Muffat Joly, J., Onnela, A., Paillard, C., Pal, I., Pernot, J. F., Petagna, P., Petit, P., Piccut, C., Pioppi, M., Postema, H., Ranieri, R., Ricci, D., Rolandi, Luigi, Ronga, F., Sigaud, C., Syed, A., Siegrist, P., Tropea, P., Troska, J., Tsirou, A., Vander Donckt, M., Vasey, F., Alagoz, E., Amsler, C., Chiochia, V., Regenfus, C., Robmann, P., Rochet, J., Rommerskirchen, T., Schmidt, A., Steiner, S., Wilke, L., Church, I., Cole, J., Coughlan, J., Gay, A., Taghavi, S., Tomalin, I., Bainbridge, R., Cripps, N., Fulcher, J., Hall, G., Noy, M., Pesaresi, M., Radicci, V., Raymond, D. M., Sharp, P., Stoye, M., Wingham, M., Zorba, O., Goitom, I., Hobson, P. R., Reid, I., Teodorescu, L., Hanson, G., Jeng, G. Y., Liu, H., Pasztor, G., Satpathy, A., Stringer, R., Mangano, B., Affolder, K., Affolder, T., Allen, A., Barge, D., Burke, S., Callahan, D., Campagnari, C., Crook, A., D'Alfonso, M., Dietch, J., Garberson, J., Hale, D., Incandela, H., Incandela, J., Jaditz, S., Kalavase, P., Kreyer, S., Kyre, S., Lamb, J., Mc Guinness, C., Mills, C., Nguyen, H., Nikolic, M., Lowette, S., Rebassoo, F., Ribnik, J., Richman, J., Rubinstein, N., Sanhueza, S., Shah, Y., Simms, L., Staszak, D., Stoner, J., Stuart, D., Swain, S., Vlimant, J. R., White, D., Ulmer, K. A., Wagner, S. R., Bagby, L., Bhat, P. C., Burkett, K., Cihangir, S., Gutsche, O., Jensen, H., Johnson, M., Luzhetskiy, N., Mason, D., Miao, T., Moccia, S., Noeding, C., Ronzhin, A., Skup, E., Spalding, W. J., Spiegel, L., Tkaczyk, S., Yumiceva, F., Zatserklyaniy, A., Zerev, E., Anghel, I., Bazterra, V. E., Gerber, C. E., Khalatian, S., Shabalina, E., Baringer, P., Bean, A., Chen, J., Hinchey, C., Martin, C., Moulik, T., Robinson, R., Gritsan, A. V., Lae, C. K., Tran, N. V., Everaerts, P., Hahn, K. A., Harris, P., Nahn, S., Rudolph, M., Sung, K., Betchart, B., Demina, R., Gotra, Y., Korjenevski, S., Miner, D., Orbaker, D., Christofek, L., Hooper, R., Landsberg, G., Nguyen, D., Narain, M., Speer, T., Tsang, K. V., Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut Universitaire de Technologie de Colmar, CMS Tracker Collaboration, Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Silicon Detectors, CMS, TRACKER, FOS: Physical sciences, Cosmic ray, 01 natural sciences, Nuclear physics, cluster finding, Pattern recognition, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Instrumentation, Image resolution, Mathematical Physics, Remote sensing, Physics, COSMIC cancer database, Large Hadron Collider, Muon, 010308 nuclear & particles physics, Large detector systems for particle and astroparticle physics, Particle tracking detectors (Solid-state detectors), Pattern recognition, cluster finding, calibration and fitting methods, Track (disk drive), Settore FIS/01 - Fisica Sperimentale, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), calibration and fitting methods, Scintillation counter
Abstract: The subsystems of the CMS silicon strip tracker were integrated and commissioned at the Tracker Integration Facility (TIF) in the period from November 2006 to July 2007. As part of the commissioning, large samples of cosmic ray data were recorded under various running conditions in the absence of a magnetic field. Cosmic rays detected by scintillation counters were used to trigger the readout of up to 15% of the final silicon strip detector, and over 4.7 million events were recorded. This document describes the cosmic track reconstruction and presents results on the performance of track and hit reconstruction as from dedicated analyses., Added missing LaTex command / no change in contents w.r.t. v1
Published: 2009

16. Alignment of the CMS silicon strip tracker during stand-alone commissioning

Author: Adam, W., Bergauer, T., Dragicevic, M., Friedl, M., Fruhwirth, R., Hansel, S., Hrubec, J., Krammer, M., Oberegger, M., Pernicka, M., Schmid, S., Stark, R., Steininger, H., Uhl, D., Waltenberger, W., Widl, E., Van Mechelen, P., Cardaci, M., Beaumont, W., de Langhe, E., de Wolf, E.A., Delmeire, E., Hashemi, M., Bouhali, O., Charaf, O., Clerbaux, B., Dewulf, J.-P., Elgammal, S., Hammad, G., de Lentdecker, G., Marage, P., Vander Velde, C., Vanlaer, P., Wickens, J., Adler, V., Devroede, O., De Weirdt, S., D'Hondt, J., Goorens, R., Heyninck, J., Maes, J., Mozer, Matthias Ulrich, Tavernier, S., Van Lancker, L., Van Mulders, P., Villella, I., Wastiels, C., Bonnet, J.-L., Bruno, G., De Callatay, B., Florins, B., Giammanco, A., Gregoire, G., Keutgen, Th., Kcira, D., Lemaitre, V., Michotte, D., Militaru, O., Piotrzkowski, K., Quertermont, L., Roberfroid, V., Rouby, X., Teyssier, D., daubie, E., Anttila, E., Czellar, S., Engstrom, P., Harkonen, J., Karimaki, V., Kostesmaa, J., Kuronen, A., Lampen, T., Linden, T., Luukka, P.-R., Maenaa, T., Michal, S., Tuominen, E., Tuominiemi, J., Ageron, M., Baulieu, G., Bonnevaux, A., Boudoul, G., Chabanat, E., Chabert, E., Chierici, R., Contardo, D., Della Negra, R., Dupasquier, T., Gelin, G., Giraud, N., Guillot, G., Estre, N., Haroutunian, R., Lumb, N., Perries, S., Schirra, F., Trocme, B., Vanzetto, S., Agram, J.-L., Blaes, R., Drouhin, F., Ernenwein, J.-P., Fontaine, J.-C., Berst, J.-D., Brom, J.-M., Didierjean, F., Goerlach, U., Graehling, P., Gross, L., Hosselet, J., Juillot, P., Lounis, A., Maazouzi, C., Olivetto, C., Strub, R., Van Hove, P., Anagnostou, G., Brauer, R., Esser, H., Feld, L., Karpinski, W., Klein, K., Kukulies, C., Olzem, J., Ostapchuk, A., Pandoulas, D., Pierschel, G., Raupach, F., Schael, S., Schwering, G., Sprenger, D., Thomas, M., Weber, M., Wittmer, B., Wlochal, M., Beissel, F., Bock, E., Flugge, G., Gillissen, C., Hermanns, T., Heydhausen, D., Jahn, D., Kaussen, G., Linn, A., Perchalla, L., Poettgens, M., Pooth, O., Stahl, A., Zoeller, M.H., Buhmann, P., Butz, E., Flucke, G., Hamdorf, R., Hauk, J., Klanner, R., Pein, U., Schleper, P., Steinbruck, G., Blum, P., De Boer, W., Dierlamm, A., Dirkes, G., Fahrer, M., Frey, M., Furgeri, A., Hartmann, F., Heier, S., Hoffmann, K.-H., Kaminski, J., Ledermann, B., Liamsuwan, T., Muller, S., Muller, Th., Schilling, F.-P., Simonis, H.-J., Steck, P., Zhukov, V., Cariola, P., De Robertis, G., Ferorelli, R., Fiore, L., Preda, M., Sala, G., Silvestris, L., Tempesta, P., Zito, G., Creanza, D., De Filippis, N., De Palma, M., Giordano, D., Maggi, G., Manna, N., My, S., Selvaggi, G., Albergo, S., Chiorboli, M., Costa, S., Galanti, M., Giudice, N., Guardone, N., Noto, F., Potenza, R., Saizu, M.A., Sparti, V., Sutera, C., Tricomi, A., Tuve, C., Brianzi, M., Civinini, C., Maletta, F., Manolescu, F., Meschini, M., Paoletti, S., Sguazzoni, G., Broccolo, B., Ciulli, V., D'Alessandro, R., Focardi, E., Frosali, S., Genta, C., Landi, G., Lenzi, P., Macchiolo, A., Magini, N., Parrini, G., Scarlini, E., Cerati, G., Azzi, P., Bacchetta, N., Candelori, A., Dorigo, T., Kaminsky, A., Karaevski, S., Khomenkov, V., Reznikov, S., Tessaro, M., Bisello, D., De Mattia, M., Giubilato, P., Loreti, M., Mattiazzo, S., Nigro, M., Paccagnella, A., Pantano, D., Pozzobon, N., Tosi, M., Bilei, G.M., Checcucci, B., Fano, L., Servoli, L., Ambroglini, F., Babucci, E., Benedetti, D., Biasini, M., Caponeri, B., Covarelli, R., Giorgi, M., Lariccia, P., Mantovani, G., Marcantonini, M., Postolache, V., Santocchia, A., Spiga, D., Bagliesi, G., Balestri, G., Berretta, L., Bianucci, S., Boccali, T., Bosi, F., Bracci, F., Castaldi, R., Ceccanti, M., Cecchi, R., Cerri, C., Cucoanes, A.S., Dell'Orso, R., Dobur, D., Dutta, S., Giassi, A., Giusti, S., Kartashov, D., Kraan, A., Lomtadze, T., Lungu, G.A., Magazzu, G., Mammini, P., Mariani, F., Martinelli, G., Moggi, A., Palla, F., Palmonari, F., Petragnani, G., Profeti, A., Raffaelli, F., Rizzi, D., Sanguinetti, G., Sarkar, S., Sentenac, D., Serban, A.T., Slav, A., Soldani, A., Spagnolo, P., Tenchini, R., Tolaini, S., Venturi, A., Verdini, P.G., Vos, M., Zaccarelli, L., Avanzini, C., Basti, A., Benucci, L., Bocci, A., Cazzola, U., Fiori, F., Linari, S., Massa, M., Messineo, A., Segneri, G., Tonelli, G., Azzurri, P., Bernardini, J., Borrello, L., Calzolari, F., Foa, L., Gennai, S., Ligabue, F., Petrucciani, G., Rizzi, A., Yang, Z., Benotto, F., Demaria, N., Dumitrache, F., Farano, R., Borgia, M.A., Castello, R., Costa, M., Migliore, E., Romero, A., Abbaneo, D., Abbas, M., Ahmed, I., Akhtar, I., Albert, E., Bloch, C., Breuker, H., Butt, S., Buchmuller, O., Cattai, A., Delaere, C., Delattre, M., Edera, L.M., Eppard, M., Gateau, M., Gill, K., Giolo-Nicollerat, A.-S., Grabit, R., Honma, A., Huhtinen, M., Kloukinas, K., Kortesmaa, J., Kottelat, L.J., Leonardo, N., Ljuslin, C., Mannelli, M., Masetti, L., Marchioro, A., Mersi, S., Mirabito, L., Muffat-Joly, J., Onnela, A., Paillard, C., Pal, I., Pernot, J.F., Petagna, P., Petit, P., Piccut, C., Pioppi, M., Postema, H., Ranieri, R., Ricci, D., Rolandi, G., Ronga, F., Sigaud, C., Syed, A., Siegrist, P., Tropea, P., Troska, J., Tsirou, A., Vander Donckt, M., Vasey, F., Alagoz, E., Amsler, Claude, Chiochia, V., Regenfus, Christian, Robmann, P., Rochet, J., Rommerskirchen, T., Schmidt, A., Steiner, S., Wilke, L., Church, I., Cole, J., Coughlan, J., Gay, A., Taghavi, S., Tomalin, I., Bainbridge, R., Cripps, N., Fulcher, J., Hall, G., Noy, M., Pesaresi, M., Radicci, V., Raymond, D.M., Sharp, P., Stoye, M., Wingham, M., Zorba, O., Goitom, I., Hobson, P.R., Reid, I., Teodorescu, L., Hanson, G., Jeng, G.-Y., Liu, H., Pasztor, G., Satpathy, A., Stringer, R., Mangano, B., Affolder, K., Affolder, T., Allen, A., Barge, D., Burke, S., Callahan, D., Campagnari, C., Crook, A., D'Alfonso, M., Dietch, J., Garberson, Jeffrey Ford, Hale, D., Incandela, H., Incandela, J., Jaditz, S., Kalavase, P., Kreyer, S., Kyre, S., Lamb, J., Mc Guinnessr, C., Mills, C., Nguyen, H., Nikolic, M., Lowette, S., Rebassoo, F., Ribnik, J., Richman, J., Rubinstein, N., Sanhueza, S., Shah, Y., Simms, L., Staszak, D., Stoner, J., Stuart, D., Swain, S., Vlimant, J.-R., White, D., Ulmer, K.A., Wagner, S.R., Bagby, L., Bhat, P.C., Burkett, K., Cihangir, S., Gutsche, O., Jensen, H., Johnson, M., Luzhetskiy, N., Mason, D., Miao, T., Moccia, S., Noeding, C., Ronzhin, A., Skup, E., Spalding, W.J., Spiegel, L., Tkaczyk, S., Yumiceva, F., Zatserklyaniy, A., Zerev, E., Anghel, I., Bazterra, V.E., Gerber, C.E., Khalatian, S., Shabalina, E., Baringer, Philip S., Bean, A., Chen, J., Hinchey, C., Martin, C., Moulik, T., Robinson, R., Gritsan, A.V., Lae, C.K., Tran, N.V., Everaerts, P., Hahn, K.A., Harris, P., Nahn, S., Rudolph, M., Sung, K., Betchart, B., Demina, R., Gotra, Y., Korjenevski, S., Miner, D., Orbaker, D., Christofek, L., Hooper, R., Landsberg, G., Nguyen, D., Narain, M., Speer, T., Tsang, K.V., Adam, W., Bergauer, T., Dragicevic, M., Friedl, M., Fruehwirth, R., Haensel, S., Hrubec, J., Krammer, M., Oberegger, M., Pernicka, M., Schmid, S., Stark, R., Steininger, H., Uhl, D., Waltenberger, W., Widl, E., Van Mechelen, P., Cardaci, M., Beaumont, W., de Langhe, E., de Wolf, E. A., Delmeire, E., Hashemi, M., Bouhali, O., Charaf, O., Clerbaux, B., Dewulf, J. P., Elgammal, S., Hammad, G., de Lentdecker, G., Marage, P., Velde C., Vander, Vanlaer, P., Wickens, J., Adler, V., Devroede, O., De Weirdt, S., D'Hondt, J., Goorens, R., Heyninck, J., Maes, J., Mozer, M., Tavernier, S., Van Lancker, L., Van Mulders, P., Villella, I., Wastiels, C., Bonnet, J. L., Bruno, G., De Callatay, B., Florins, B., Giammanco, A., Gregoire, G., Keutgen, T. h., Kcira, D., Lemaitre, V., Michotte, D., Militaru, O., Piotrzkowski, K., Quertermont, L., Roberfroid, V., Rouby, X., Teyssier, D., Daubie, E., Anttila, E., Czellar, S., Engstrom, P., Harkonen, J., Karimaki, V., Kostesmaa, J., Kuronen, A., Lampen, T., Linden, T., Luukka, P. R., Maenaa, T., Michal, S., Tuominen, E., Tuominiemi, J., Ageron, M., Baulieu, G., Bonnevaux, A., Boudoul, G., Chabanat, E., Chabert, E., Chierici, R., Contardo, D., Della Negra, R., Dupasquier, T., Gelin, G., Giraud, N., Guillot, G., Estre, N., Haroutunian, R., Lumb, N., Perries, S., Schirra, F., Trocme, B., Vanzetto, S., Agram, J. L., Blaes, R., Drouhin, F., Ernenwein, J. P., Fontaine, J. C., Berst, J. D., Brom, J. M., Didierjean, F., Goerlach, U., Graehling, P., Gross, L., Hosselet, J., Juillot, P., Lounis, A., Maazouzi, C., Olivetto, C., Strub, R., Van Hove, P., Anagnostou, G., Brauer, R., Esser, H., Feld, L., Karpinski, W., Klein, K., Kukulies, C., Olzem, J., Ostapchuk, A., Pandoulas, D., Pierschel, G., Raupach, F., Schael, S., Schwering, G., Sprenger, D., Thomas, M., Weber, M., Wittmer, B., Wlochal, M., Beissel, F., Bock, E., Flugge, G., Gillissen, C., Hermanns, T., Heydhausen, D., Jahn, D., Kaussen, G., Linn, A., Perchalla, L., Poettgens, M., Pooth, O., Stahl, A., Zoeller, M. H., Buhmann, P., Butz, E., Flucke, G., Hamdorf, R., Hauk, J., Klanner, R., Pein, U., Schleper, P., Steinbrueck, G., Bluem, P., De Boer, W., Dierlamm, A., Dirkes, G., Fahrer, M., Frey, M., Furgeri, A., Hartmann, F., Heier, S., Hoffmann, K. H., Kaminski, J., Ledermann, B., Liamsuwan, T., Mueller, S., Mueller, T. h., Schilling, F. P., Simonis, H. J., Steck, P., Zhukov, V., Cariola, P., De Robertis, G., Ferorelli, R., Fiore, L., Preda, M., Sala, G., Silvestris, L., Tempesta, P., Zito, G., Creanza, D., De Filippis, N., De Palma, M., Giordano, D., Maggi, G., Manna, N., My, S., Selvaggi, G., Albergo, S., Chiorboli, M., Costa, S., Galanti, M., Giudice, N., Guardone, N., Noto, F., Potenza, R., Saizu, M. A., Sparti, V., Sutera, C., Tricomi, A., Tuve, C., Brianzi, M., Civinini, C., Maletta, F., Manolescu, F., Meschini, M., Paoletti, S., Sguazzoni, G., Broccolo, B., Ciulli, V., Focardi, R. D. '. A. l. e. s. s. a. n. d. r. o. E., Frosali, S., Genta, C., Landi, G., Lenzi, P., Macchiolo, A., Magini, N., Parrini, G., Scarlini, E., Cerati, G., Azzi, P., Bacchetta, N., Candelori, A., Dorigo, T., Kaminsky, A., Karaevski, S., Khomenkov, V., Reznikov, S., Tessaro, M., Bisello, D., De Mattia, M., Giubilato, P., Loreti, M., Mattiazzo, S., Nigro, M., Paccagnella, A., Pantano, D., Pozzobon, N., Tosi, M., Bilei, G. M., Checcucci, B., Fano, L., Servoli, L., Ambroglini, F., Babucci, E., Benedetti, D., Biasini, M., Caponeri, B., Covarelli, R., Giorgi, M., Lariccia, P., Mantovani, G., Marcantonini, M., Postolache, V., Santocchia, A., Spiga, D., Bagliesi, G., Balestri, G., Berretta, L., Bianucci, S., Boccali, T., Bosi, F., Bracci, F., Castaldi, R., Ceccanti, M., Cecchi, R., Cerri, C., Cucoanes, A. S., Dell'Orso, R., Dobur, D., Dutta, S., Giassi, A., Giusti, S., Kartashov, D., Kraan, A., Lomtadze, T., Lungu, G. A., Magazzu, G., Mammini, P., Mariani, F., Martinelli, G., Moggi, A., Palla, F., Palmonari, F., Petragnani, G., Profeti, A., Raffaelli, F., Rizzi, D., Sanguinetti, G., Sarkar, S., Sentenac, D., Serban, A. T., Slav, A., Soldani, A., Spagnolo, P., Tenchini, R., Tolaini, S., Venturi, A., Verdini, P. G., Vos, M., Zaccarelli, L., Avanzini, C., Basti, A., Benucci, L., Bocci, A., Cazzola, U., Fiori, F., Linari, S., Massa, M., Messineo, A., Segneri, G., Tonelli, G., Azzurri, P., Bernardini, J., Borrello, L., Calzolari, Federico, Foa, L., Gennai, S., Ligabue, Franco, Petrucciani, G., Rizzi, A., Yang, Z., Benotto, F., Demaria, N., Dumitrache, F., Farano, R., Borgia, M. A., Castello, R., Costa, M., Migliore, E., Romero, A., Abbaneo, D., Abbas, M., Ahmed, I., Akhtar, I., Albert, E., Bloch, C., Breuker, H., Butt, S., Buchmuller, O., Cattai, A., Delaere, C., Delattre, M., Edera, L. M., Eppard, M., Gateau, M., Gill, K., Giolo Nicollerat, A. S., Grabit, R., Honma, A., Huhtinen, M., Kloukinas, K., Kortesmaa, J., Kottelat, L. J., Leonardo, N., Ljuslin, C., Mannelli, M., Masetti, L., Marchioro, A., Mersi, S., Mirabito, L., Muffat Joly, J., Onnela, A., Paillard, C., Pal, I., Pernot, J. F., Petagna, P., Petit, P., Piccut, C., Pioppi, M., Postema, H., Ranieri, R., Ricci, D., Rolandi, Luigi, Ronga, F., Sigaud, C., Syed, A., Siegrist, P., Tropea, P., Troska, J., Tsirou, A., Donckt M., Vander, Vasey, F., Alagoz, E., Amsler, C., Chiochia, V., Regenfus, C., Robmann, P., Rochet, J., Rommerskirchen, T., Schmidt, A., Steiner, S., Wilke, L., Church, I., Cole, J., Coughlan, J., Gay, A., Taghavi, S., Tomalin, I., Bainbridge, R., Cripps, N., Fulcher, J., Hall, G., Noy, M., Pesaresi, M., Radicci, V., Raymond, D. M., Sharp, P., Stoye, M., Wingham, M., Zorba, O., Goitom, I., Hobson, P. R., Reid, I., Teodorescu, L., Hanson, G., Jeng, G. Y., Liu, H., Pasztor, G., Satpathy, A., Stringer, R., Mangano, B., Affolder, K., Affolder, T., Allen, A., Barge, D., Burke, S., Callahan, D., Campagnari, C., Crook, A., D'Alfonso, M., Dietch, J., Garberson, J., Hale, D., Incandela, H., Incandela, J., Jaditz, S., Kalavase, P., Kreyer, S., Kyre, S., Lamb, J., Mc Guinness, C., Mills, C., Nguyen, H., Nikolic, M., Lowette, S., Rebassoo, F., Ribnik, J., Richman, J., Rubinstein, N., Sanhueza, S., Shah, Y., Simms, L., Staszak, D., Stoner, J., Stuart, D., Swain, S., Vlimant, J. R., White, D., Ulmer, K. A., Wagner, S. R., Bagby, L., Bhat, P. C., Burkett, K., Cihangir, S., Gutsche, O., Jensen, H., Johnson, M., Luzhetskiy, N., Mason, D., Miao, T., Moccia, S., Noeding, C., Ronzhin, A., Skup, E., Spalding, W. J., Spiegel, L., Tkaczyk, S., Yumiceva, F., Zatserklyaniy, A., Zerev, E., Anghel, I., Bazterra, V. E., Gerber, C. E., Khalatian, S., Shabalina, E., Baringer, P., Bean, A., Chen, J., Hinchey, C., Martin, C., Moulik, T., Robinson, R., Gritsan, A. V., Lae, C. K., Tran, N. V., Everaerts, P., Hahn, K. A., Harris, P., Nahn, S., Rudolph, M., Sung, K., Betchart, B., Demina, R., Gotra, Y., Korjenevski, S., Miner, D., Orbaker, D., Christofek, L., Hooper, R., Landsberg, G., Nguyen, D., Narain, M., Speer, T., Tsang, K. V., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), informatique, Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Groupe de Recherches en Physique des Hautes Energies, Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and CMS
Subjects: Physics - Instrumentation and Detectors, Silicon, Computer science, Tracker, Barrel (horology), FOS: Physical sciences, chemistry.chemical_element, Residual, 01 natural sciences, 7. Clean energy, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, Optics, cluster finding, law, Particle tracking detectors, Pattern recognition, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, Instrumentation, Mathematical Physics, COSMIC cancer database, Large Hadron Collider, Pattern recognition, cluster finding, calibration and fitting methods, 010308 nuclear & particles physics, business.industry, CMS, Track (disk drive), Physics, Settore FIS/01 - Fisica Sperimentale, Ranging, Instrumentation and Detectors (physics.ins-det), Silicon Detectors, calibration and fitting methods, Laser, Analysis and statistical methods, Particle tracking detectors (Solid-state detectors), chemistry, TRACKER, business
Abstract: The results of the CMS tracker alignment analysis are presented using the data from cosmic tracks, optical survey information, and the laser alignment system at the Tracker Integration Facility at CERN. During several months of operation in the spring and summer of 2007, about five million cosmic track events were collected with a partially active CMS Tracker. This allowed us to perform first alignment of the active silicon modules with the cosmic tracks using three different statistical approaches; validate the survey and laser alignment system performance; and test the stability of Tracker structures under various stresses and temperatures ranging from +15C to -15C. Comparison with simulation shows that the achieved alignment precision in the barrel part of the tracker leads to residual distributions similar to those obtained with a random misalignment of 50 (80) microns in the outer (inner) part of the barrel., Comment: 41 pages, 63 postscript figures, submitted to JINST
Published: 2009

17. Long-term TeV and X-ray Observations of the Gamma-ray Binary HESS J0632+057

Author: VERITAS Collaboration, Aliu, E., Archambault, S., Aune, T., Behera, B., Beilicke, M., Benbow, W., Berger, K., Bird, R., Bouvier, A., Buckley, J. H., Bugaev, V., Byrum, K., Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Duke, C., Dumm, J., Errando, M., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Fortin, P., Fortson, L., Furniss, A., Galante, N., Gillanders, G. H., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Humensky, T. B., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krawczynski, H., Krennrich, F., Lang, M. J., Madhavan, A. S, Maier, G., Majumdar, P., McCann, A., Moriarty, P., Mukherjee, R., Nieto, D., de Bhr��ithe, A. O'Faol��in, Ong, R. A., Otte, A. N., Park, N., Perkins, J. S., Pohl, M., Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Rajotte, J., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Rousselle, J., Sembroski, G. H., Sheidaei, F., Skole, C., Smith, A. W., Staszak, D., Stroh, M., Telezhinsky, I., Theiling, M., Tucci, J. V., Tyler, J., Varlotta, A., Vincent, S., Wakely, S. P., Weinstein, A., Welsing, R., Williams, D. A., Zajczyk, A., Zitzer, B., Collaboration, H. E. S. S., Abramowski, A., Aharonian, F., Benkhali, F. Ait, Akhperjanian, A. G., Ang��ner, E., Anton, G., Balenderan, S., Balzer, A., Barnacka, A., Becherini, Y., Tjus, J. Becker, Bernl��hr, K., Birsin, E., Bissaldi, E., Biteau, J., B��ttcher, M., Boisson, C., Bolmont, J., Bordas, P., Brucker, J., Brun, F., Brun, P., Bulik, T., Carrigan, S., Casanova, S., Chadwick, P. M., Chalme-Calvet, R., Chaves, R. C. G., Cheesebrough, A., Chr��tien, M., Colafrancesco, S., Cologna, G., Conrad, J., Couturier, C., Dalton, M., Daniel, M. K., Davids, I. D., Degrange, B., Deil, C., deWilt, P., Dickinson, H. J., Djannati-Ata��, A., Domainko, W., Drury, L. O'C., Dubus, G., Dutson, K., Dyks, J., Dyrda, M., Edwards, T., Egberts, K., Eger, P., Espigat, P., Farnier, C., Fegan, S., Feinstein, F., Fernandes, M. V., Fernandez, D., Fiasson, A., Fontaine, G., Forster, A., F��ling, M., Gajdus, M., Gallant, Y. A., Garrigoux, T., Giavitto, G., Giebels, B., Glicenstein, J. F., Grondin, M. -H., Grudzi��ska, M., H��ffner, S., Hahn, J., Harris, J., Heinzelmann, G., Henri, G., Hermann, G., Hervet, O., Hillert, A., Hinton, J. A., Hofmann, W., Hofverberg, P., Holler, M., Horns, D., Jacholkowska, A., Jahn, C., Jamrozy, M., Janiak, M., Jankowsky, F., Jung, I., Kastendieck, M. A., Katarzy��ski, K., Katz, U., Kaufmann, S., Kh��lifi, B., Kieffer, M., Klepser, S., Klochkov, D., Klu��niak, W., Kneiske, T., Kolitzus, D., Komin, Nu., Kosack, K., Krakau, S., Krayzel, F., Kr��ger, P. P., Laffon, H., Lamanna, G., Lefaucheur, J., Lemi��re, A., Lemoine-Goumard, M., Lenain, J. -P., Lennarz, D., Lohse, T., Lopatin, A., Lu, C. -C., Marandon, V., Marcowith, A., Marx, R., Maurin, G., Maxted, N., Mayer, M., McComb, T. J. L., M��hault, J., Menzler, U., Meyer, M., Moderski, R., Mohamed, M., Moulin, E., Murach, T., Naumann, C. L., de Naurois, M., Niemiec, J., Nolan, S. J., Oakes, L., Ohm, S., Wilhelmi, E. de On��a, Opitz, B., Ostrowski, M., Oya, I., Panter, M., Parsons, R. D., Arribas, M. Paz, Pekeur, N. W., Pelletier, G., Perez, J., Petrucci, P. -O., Peyaud, B., Pita, S., Poon, H., P��hlhofer, G., Punch, M., Quirrenbach, A., Raab, S., Raue, M., Reimer, A., Reimer, O., Renaud, M., Reyes, R. de los, Rieger, F., Rob, L., Romoli, C., Rosier-Lees, S., Rowell, G., Rudak, B., Rulten, C. B., Sahakian, V., Sanchez, D. A., Santangelo, A., Schlickeiser, R., Sch��ssler, F., Schulz, A., Schwanke, U., Schwarzburg, S., Schwemmer, S., Sol, H., Spengler, G., Spies, F., Stawarz, ��., Steenkamp, R., Stegmann, C., Stinzing, F., Stycz, K., Sushch, I., Szostek, A., Tavernet, J. -P., Tavernier, T., Taylor, A. M., Terrier, R., Tluczykont, M., Trichard, C., Valerius, K., van Eldik, C., Vasileiadis, G., Venter, C., Viana, A., Vincent, P., V��lk, H. J., Volpe, F., Vorster, M., Wagner, S. J., Wagner, P., Ward, M., Weidinger, M., Weitzel, Q., White, R., Wierzcholska, A., Willmann, P., W��rnlein, A., Wouters, D., Zacharias, M., Zdziarski, A. A., Zech, A., Zechlin, H. -S., H.E.S.S. Collaboration, Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Astroparticules (ASTRO), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), HESS, Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), 24420530 - Böttcher, Markus, 10103449 - Krüger, Petrus Paulus, 22050574 - Pekeur, Nicolette Whilna, 12006653 - Venter, Christo, 12792322 - Vorster, Michael Johannes, 23909196 - Casanova, Sabrina, 24922986 - Sushch, Iurii, E., Aliu, S., Archambault, T., Aune, B., Behera, M., Beilicke, W., Benbow, K., Berger, R., Bird, A., Bouvier, J. H., Buckley, V., Bugaev, K., Byrum, M., Cerruti, X., Chen, L., Ciupik, M. P., Connolly, W., Cui, C., Duke, J., Dumm, M., Errando, A., Falcone, S., Federici, Q., Feng, J. P., Finley, P., Fortin, L., Fortson, A., Furni, N., Galante, G. H., Gillander, S., Griffin, S. T., Griffith, J., Grube, G., Gyuk, D., Hanna, J., Holder, G., Hughe, T. B., Humensky, P., Kaaret, M., Kertzman, Y., Khassen, D., Kieda, H., Krawczynski, F., Krennrich, M. J., Lang, A. S., Madhavan, G., Maier, P., Majumdar, A., Mccann, P., Moriarty, R., Mukherjee, D., Nieto, A., O’Faoláin de Bhróithe, R. A., Ong, A. N., Otte, N., Park, J. S., Perkin, M., Pohl, A., Popkow, H., Prokoph, J., Quinn, K., Ragan, J., Rajotte, L. C., Reye, P. T., Reynold, G. T., Richard, E., Roache, J., Rousselle, G. H., Sembroski, F., Sheidaei, C., Skole, A. W., Smith, D., Staszak, M., Stroh, I., Telezhinsky, M., Theiling, J. V., Tucci, J., Tyler, A., Varlotta, S., Vincent, S. P., Wakely, A., Weinstein, R., Welsing, D. A., William, A., Zajczyk, B., Zitzer, A., Abramowski, F., Aharonian, F., Ait Benkhali, A. G., Akhperjanian, E., Angüner, G., Anton, S., Balenderan, A., Balzer, A., Barnacka, Y., Becherini, J., Becker Tju, K., Bernlöhr, E., Birsin, Bissaldi, Elisabetta, J., Biteau, M., Böttcher, C., Boisson, J., Bolmont, P., Borda, J., Brucker, F., Brun, P., Brun, T., Bulik, S., Carrigan, S., Casanova, P. M., Chadwick, R., Chalme Calvet, R. C. G., Chave, A., Cheesebrough, M., Chrétien, S., Colafrancesco, G., Cologna, J., Conrad, C., Couturier, M., Dalton, M. K., Daniel, I. D., David, B., Degrange, C., Deil, P., Dewilt, H. J., Dickinson, A., Djannati Ataï, W., Domainko, Drury, L. O. ’. C., G., Dubu, K., Dutson, J., Dyk, M., Dyrda, T., Edward, K., Egbert, P., Eger, P., Espigat, C., Farnier, S., Fegan, F., Feinstein, M. V., Fernande, D., Fernandez, A., Fiasson, G., Fontaine, A., Förster, M., Füssling, M., Gajdu, Y. A., Gallant, T., Garrigoux, G., Giavitto, B., Giebel, J. F., Glicenstein, M. H., Grondin, M., Grudzińska, S., Häffner, J., Hahn, J., Harri, G., Heinzelmann, G., Henri, G., Hermann, O., Hervet, A., Hillert, J. A., Hinton, W., Hofmann, P., Hofverberg, M., Holler, D., Horn, A., Jacholkowska, C., Jahn, M., Jamrozy, M., Janiak, F., Jankowsky, I., Jung, M. A., Kastendieck, K., Katarzyński, U., Katz, S., Kaufmann, B., Khélifi, M., Kieffer, S., Klepser, D., Klochkov, W., Kluźniak, T., Kneiske, D., Kolitzu, Komin, N. u., K., Kosack, S., Krakau, F., Krayzel, P. P., Krüger, H., Laffon, G., Lamanna, J., Lefaucheur, A., Lemière, M., Lemoine Goumard, J. P., Lenain, D., Lennarz, T., Lohse, A., Lopatin, C. C., Lu, V., Marandon, A., Marcowith, R., Marx, G., Maurin, N., Maxted, M., Mayer, T. J. L., Mccomb, J., Méhault, U., Menzler, M., Meyer, R., Moderski, M., Mohamed, E., Moulin, T., Murach, C. L., Naumann, M., de Nauroi, J., Niemiec, S. J., Nolan, L., Oake, S., Ohm, E., de Oña Wilhelmi, B., Opitz, M., Ostrowski, I., Oya, M., Panter, R. D., Parson, M., Paz Arriba, N. W., Pekeur, G., Pelletier, J., Perez, P. O., Petrucci, B., Peyaud, S., Pita, H., Poon, G., Pühlhofer, M., Punch, A., Quirrenbach, S., Raab, M., Raue, A., Reimer, O., Reimer, M., Renaud, R., de los Reye, F., Rieger, L., Rob, C., Romoli, S., Rosier Lee, G., Rowell, B., Rudak, C. B., Rulten, V., Sahakian, D. A., Sanchez, A., Santangelo, R., Schlickeiser, F., Schüssler, A., Schulz, U., Schwanke, S., Schwarzburg, S., Schwemmer, H., Sol, G., Spengler, F., Spie, Ł., Stawarz, R., Steenkamp, C., Stegmann, F., Stinzing, K., Stycz, I., Sushch, A., Szostek, J. P., Tavernet, T., Tavernier, A. M., Taylor, R., Terrier, M., Tluczykont, C., Trichard, K., Valeriu, C., van Eldik, G., Vasileiadi, C., Venter, A., Viana, P., Vincent, H. J., Völk, F., Volpe, M., Vorster, S. J., Wagner, P., Wagner, M., Ward, M., Weidinger, Q., Weitzel, R., White, A., Wierzcholska, P., Willmann, A., Wörnlein, D., Wouter, M., Zacharia, A. A., Zdziarski, A., Zech, and H. S., Zechlin
Subjects: catalog, general(HESS J0632+057, VER J0633+057) [gamma rays], Acceleration of particles, binaries:general, Astrophysics, telescope, 01 natural sciences, general [binaries], ls-i +61-degrees-303, emission, i+61 303, 010303 astronomy & astrophysics, HESS - Abteilung Hofmann, acceleration of particle, media_common, acceleration of particles, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), WR star binaries, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Gamma ray, general. [Gamma rays], Orbital period, veritas observations, winds, Orbit, binaries: general, i+61-degrees-303, Astrophysics - High Energy Astrophysical Phenomena, general (HESS J0632+057, VER J0633+057) [gamma rays], [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Hochenergie-Astrophysik Theorie - Abteilung Hofmann, FOS: Physical sciences, Context (language use), Ephemeris, gamma rays: general, 0103 physical sciences, WR star binarie, Cherenkov radiation, 010308 nuclear & particles physics, variability, Institut für Physik und Astronomie, Astronomy and Astrophysics, Light curve, Space and Planetary Science, Sky, ddc:520, general [gamma rays], gamma rays: general(hess j0632+057, ver j0633+057), discovery
Abstract: HESS J0632+057 is the only gamma-ray binary known so far whose position in the sky allows observations with ground-based observatories both in the northern and southern hemispheres. Here we report on long-term observations of HESS J0632+057 conducted with the VERITAS and H.E.S.S. Cherenkov Telescopes and the X-ray Satellite Swift, spanning a time range from 2004 to 2012 and covering most of the system's orbit. The VHE emission is found to be variable, and is correlated with that at X-ray energies. An orbital period of $315 ^{+6}_{-4}$ days is derived from the X-ray data set, which is compatible with previous results, $P = (321 \pm 5$) days. The VHE light curve shows a distinct maximum at orbital phases close to 0.3, or about 100 days after periastron passage, which coincides with the periodic enhancement of the X-ray emission. Furthermore, the analysis of the TeV data shows for the first time a statistically significant ($> 6.5 \sigma$) detection at orbital phases 0.6--0.9. The obtained gamma-ray and X-ray light curves and the correlation of the source emission at these two energy bands are discussed in the context of the recent ephemeris obtained for the system. Our results are compared to those reported for other gamma-ray binaries., Comment: 35 pages, 8 figures, accepted for publication in ApJ
Published: 2014

18. Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state

Author: VERITAS Collaboration, Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bird, R., Boettcher, M., Bouvier, A., Bugaev, V., Byrum, K., Cesarini, A., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dickherber, R., Duke, C., Dumm, J., Errando, M., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Finnegan, G., Fortson, L., Furniss, A., Galante, N., Gall, D., Gillanders, G. H., Griffin, S., Grube, J., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Humensky, T. B., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krawczynski, H., Krennrick, F., Lang, M. J., Madhavan, A. S., Maier, G., Majumdar, P., McArthur, S., McCann, A., Moriarty, P., Mukherjee, R., Nelson, T., de Bhroithe, A. O'Faolain, Ong, R. A., Orr, M., Otte, A. N., Park, N., Perkins, J. S., Pichel, A., Pohl, M., Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Roache, E., Saxon, D. B., Schroedter, M., Sembroski, G. H., Skole, C., Smith, A. W., Staszak, D., Telezhinsky, I., Theiling, M., Tyler, J., Varlotta, A., Vassiliev, V. V., Wakely, S. P., Weekes, T. C., Weinstein, A., Welsing, R., Williams, D. A., and Zitzer, B.
Subjects: Ciencias Físicas, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, bl-lacertae objects, individual (1ES 1959+650 = VER J1959+651) [BL Lacertae objects], Flux, FOS: Physical sciences, Astrophysics, swift ultraviolet/optical telescope, 01 natural sciences, Luminosity, law.invention, blazar 1es-1959+650, Telescope, law, gamma rays: galaxies, 0103 physical sciences, 010303 astronomy & astrophysics, bl lacertae objects: general, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, 010308 nuclear & particles physics, general [BL Lacertae objects], bl lacertae objects: individual (1es 1959+650=ver j1959+651), Institut für Physik und Astronomie, Astronomy and Astrophysics, gamma-rays, source catalog, lac objects, Light curve, radiation, Astronomía, large-area telescope, Space and Planetary Science, active [galaxies], galaxies [gamma rays], ddc:520, tev-flare, Spectral energy distribution, relativistic jet, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, BL Lac object, Flare
Abstract: We report on the VERITAS observations of the high-frequency peaked BL Lac object 1ES 1959+650 in the period 2007-2011. This source is detected at TeV energies by VERITAS at 16.4 standard deviation (sigma) significance in 7.6 hours of observation in a low flux state. A multiwavelength spectral energy distribution (SED) is constructed from contemporaneous data from VERITAS, Fermi-LAT, RXTE PCA, and Swift UVOT. Swift XRT data is not included in the SED due to a lack of simultaneous observations with VERITAS. In contrast to the orphan gamma-ray flare exhibited by this source in 2002, the X-ray flux of the source is found to vary by an order of magnitude, while other energy regimes exhibit less variable emission. A quasi-equilibrium synchrotron self-Compton model with an additional external radiation field is used to describe three SEDs corresponding to the lowest, highest, and average X-ray states. The variation in the X-ray spectrum is modeled by changing the electron injection spectral index, with minor adjustments of the kinetic luminosity in electrons. This scenario produces small-scale flux variability of order >~2 in the HE (E>1 MeV) and VHE (E>100 GeV) gamma-ray regimes, which is corroborated by the Fermi-LAT, VERITAS, and Whipple 10m telescope light curves., 9 pages, 7 figures. This is an author-created, un-copyedited version of an article accepted for publication in The Astrophysical Journal. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
Published: 2013
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19. Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar

Author: VERITAS Collaboration, Aliu, E., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Bradbury, S. M., Buckley, J. H., Bugaev, V., Byrum, K., Cannon, A., Cesarini, A., Christiansen, J. L., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dickherber, R., Duke, C., Errando, M., Falcone, A., Finley, J. P., Finnegan, G., Fortson, L., Furniss, A., Galante, N., Gall, D., Gibbs, K., Gillanders, G. H., Godambe, S., Griffin, S., Grube, J., Guenette, R., Gyuk, G., Hanna, D., Holder, J., Huan, H., Hughes, G., Hui, C. M., Humensky, T. B., Imran, A., Kaaret, P., Karlsson, N., Kertzman, M., Kieda, D., Krawczynski, H., Krennrich, F., Lang, M. J., Lyutikov, M., Madhavan, A. S, Maier, G., Majumdar, P., McArthur, S., McCann, A., McCutcheon, M., Moriarty, P., Mukherjee, R., Nuñez, P., Ong, R. A., Orr, M., Otte, A. N., Park, N., Perkins, J. S., Pizlo, F., Pohl, M., Prokoph, H., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Roache, E., Rose, J., Ruppel, J., Saxon, D. B., Schroedter, M., Sembroski, G. H., Şentürk, G. D., Smith, A. W., Staszak, D., Tešić, G., Theiling, M., Thibadeau, S., Tsurusaki, K., Tyler, J., Varlotta, A., Vassiliev, V. V., Vincent, S., Vivier, M., Wakely, S. P., Ward, J. E., Weekes, T. C., Weinstein, A., Weisgarber, T., Williams, D. A., and Zitzer, B.
Subjects: nebula, catalog, Photon, outer magnetosphere, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Radiation, law.invention, Telescope, Pulsar, millisecond pulsars, law, area telescope, tev, Nuclear Experiment, Cherenkov radiation, high-energy emission, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Multidisciplinary, Crab Pulsar, light curves, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, Institut für Physik und Astronomie, Astronomy, radiation, Neutron star, Astrophysics - High Energy Astrophysical Phenomena, slot gaps
Abstract: We report the detection of pulsed gamma rays from the Crab pulsar at energies above 100 Gigaelectronvolts (GeV) with the VERITAS array of atmospheric Cherenkov telescopes. The detection cannot be explained on the basis of current pulsar models. The photon spectrum of pulsed emission between 100 Megaelectronvolts (MeV) and 400 GeV is described by a broken power law that is statistically preferred over a power law with an exponential cutoff. It is unlikely that the observation can be explained by invoking curvature radiation as the origin of the observed gamma rays above 100 GeV. Our findings require that these gamma rays be produced more than 10 stellar radii from the neutron star., 17 pages, corresponding authors: Nepomuk Otte nepomuk.otte@gmail.com; Andrew McCann mccann@hep.physics.mcgill.ca; Martin Schroedter schroedter@veritas.sao.arizona.edu
Published: 2011

20. Inclusive pi(0), eta, and direct photon production at high transverse momentum in p plus p and d plus Au collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUMGART, S, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, BIELCIK, J, GROSNICK, D, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, GRUBE, B, BIELCIKOVA, J, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, GUERTIN, SM, MITROVSKI, MK, BIRITZ, B, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, GUPTA, A, NETRAKANTI, PK, NG, MJ, BLAND, LC, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, GUPTA, N, PACHR, M, PAGE, BS, PAL, SK, BONNER, BE, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, GURYN, W, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, BOUCHET, J, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, HAAG, B, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, BRAIDOT, E, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, HALLMAN, TJ, RAY, RL, REDWINE, R, REED, R, REHBERG, JM, RITTER, HG, ROBERTS, JB, BRANDIN, AV, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, HAMED, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, SAKUMA, T, BRIDGEMAN, A, SALUR, S, SANDWEISS, J, HAN, LX, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, BRUNA, E, SEYBOTH, P, BEAVIS, DR, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, BUELTMANN, S, HARRIS, JW, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, HAYS-WEHLE, JP, BUNZAROV, I, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, HEINZ, M, DE TOLEDO, AS, BURTON, TP, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, HEPPELMANN, S, TIMMINS, AR, TIMOSHENKO, S, CAI, XZ, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, HIRSCH, A, ULERY, J, ULLRICH, T, UNDERWOOD, DG, CAINES, H, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, HJORT, E, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, SANCHEZ, MCD, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, HOFFMAN, AM, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, CATU, O, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, HOFFMANN, GW, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, Y, XIE, W, CEBRA, D, XU, N, XU, QH, XU, W, HOFMAN, DJ, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, CENDEJAS, R, YUE, Q, ZAWISZA, M, HOLLIS, RS, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, CERVANTES, MC, ZHONG, C, BELLWIED, R, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, HUANG, HZ, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CLARKE, RF, CODRINGTON, MJM, HUMANIC, TJ, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, HUO, L, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, IGO, G, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, IORDANOVA, A, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, JACOBS, P, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, JACOBS, WW, JAKL, P, JENA, C, JIN, F, BENEDOSSO, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, BETANCOURT, MJ, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, BETTS, RR, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, BHASIN, A, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, BHATI, AK, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, Z, LIN, G, BICHSEL, H, and LINDENBAUM, SJ
Subjects: D+Au Collisions, Barrel Electromagnetic Calorimeter, Star, Fragmentation, Physics, Time Projection Chamber, Heavy-Ion Collisions, Distributions, High Energy Physics::Experiment, Leading Order, Hadron-Production, Nuclear Experiment
Abstract: We report a measurement of high-p(T) inclusive pi(0), eta, and direct photon production in p + p and d + Au collisions at root s(NN) = 200 GeV at midrapidity (0 < eta < 1). Photons from the decay pi(0) -> gamma gamma were detected in the barrel electromagnetic calorimeter of the STAR experiment at the Relativistic Heavy Ion Collider. The eta -> gamma gamma decay was also observed and constituted the first eta measurement by STAR. The first direct photon cross-section measurement by STAR is also presented; the signal was extracted statistically by subtracting the pi(0), eta, and omega(782) decay background from the inclusive photon distribution observed in the calorimeter. The analysis is described in detail, and the results are found to be in good agreement with earlier measurements and with next-to-leading-order perturbative QCD calculations.
Published: 2010

21. Observation of pi(+)pi(-)pi(+)pi(-) photoproduction in ultraperipheral heavy-ion collisions at root s(NN)=200 GeV at the STAR detector

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, BEAVIS, DR, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, BELLWIED, R, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, BENEDOSSO, F, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, BETANCOURT, MJ, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, BETTS, RR, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, BHASIN, A, KOLLEGGER, T, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, BHATI, AK, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, BICHSEL, H, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, Z, BIELCIK, J, LIN, G, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, BIELCIKOVA, J, LU, Y, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, BIRITZ, B, MASUI, H, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, BLAND, LC, MITROVSKI, MK, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, BONNER, BE, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, BOUCHET, J, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, BRAIDOT, E, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, BRANDIN, AV, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, REHBERG, JM, RITTER, HG, BRIDGEMAN, A, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, BRUNA, E, SAKUMA, T, SALUR, S, SANDWEISS, J, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, BUELTMANN, S, SELYUZHENKOV, I, SEYBOTH, P, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, BUNZAROV, I, SMIRNOV, N, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, BURTON, TP, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, CAI, XZ, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, CAINES, H, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, SANCHEZ, MCD, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, CATU, O, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, X, WANG, XL, CEBRA, D, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, Y, CENDEJAS, R, XIE, W, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, CERVANTES, MC, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, CHAJECKI, Z, ZHAO, J, ZHONG, C, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CHUNG, SU, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FACHINI, P, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, and GORDON, A
Subjects: Quarkonia, Helicity-Coupling Amplitudes, Physics, Time Projection Chamber, Mass, Photon, Gamma-Gamma
Abstract: We present a measurement of pi(+)pi(-)pi(+)pi(-) photonuclear production in ultraperipheral Au-Au collisions at root s(NN) = 200 GeV from the STAR experiment. The pi(+)pi(-)pi(+)pi(-) final states are observed at low transverse momentum and are accompanied by mutual nuclear excitation of the beam particles. The strong enhancement of the production cross section at low transverse momentum is consistent with coherent photoproduction. The pi(+)pi(-)pi(+)pi(-) invariant mass spectrum of the coherent events exhibits a broad peak around 1540 +/- 40 MeV/c(2) with a width of 570 +/- 60 MeV/c(2), in agreement with the photoproduction data for the rho(0)(1700). We do not observe a corresponding peak in the pi(+)pi(-) final state and measure an upper limit for the ratio of the branching fractions of the rho(0)(1700) to pi(+)pi(-) and pi(+)pi(-)pi(+)pi(-) of 2.5% at 90% confidence level. The ratio of rho(0)(1700) and rho(0)(770) coherent production cross sections is measured to be 13.4 +/- 0.8(stat.) +/- 4.4(syst.)%.
Published: 2010
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22. Measurement of D* mesons in jets from p plus p collisions at root s=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, BAUMGART, S, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, BEAVIS, DR, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, HIPPOLYTE, B, BELLWIED, R, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, IGO, G, IORDANOVA, A, BENEDOSSO, F, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, BETANCOURT, MJ, KAJIMOTO, K, KANG, K, KAPITAN, J, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIKOLA, DP, KIRYLUK, J, KISIEL, A, BETTS, RR, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOPYTINE, M, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, BHASIN, A, KRUEGER, K, KRUS, M, KUHN, C, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, BHATI, AK, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, N, LI, C, LI, Y, LIN, G, LINDENBAUM, SJ, BICHSEL, H, LISA, MA, LIU, F, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, BIELCIK, J, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, BIELCIKOVA, J, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, BIRITZ, B, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, BLAND, LC, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, BOMBARA, M, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, BONNER, BE, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RIDIGER, A, BOTJE, M, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, BOUCHET, J, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, BRAIDOT, E, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, BRANDIN, AV, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, BRUNA, E, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, BUELTMANN, S, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, BURTON, TP, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, BYSTERSKY, M, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, MOLEN, AMV, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, CAI, XZ, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WALKER, M, WANG, F, WANG, G, WANG, JS, CAINES, H, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, SANCHEZ, MCD, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, XU, Y, XU, Z, YANG, Y, YEPES, P, YOO, IK, CATU, O, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, Y, CEBRA, D, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, ZUO, JX, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, LC, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, and GEURTS, F
Subjects: Z Decays, Physics, Heavy-Quark Production
Abstract: We report the measurement of charged D* mesons in inclusive jets produced in proton-proton collisions at a center-of-mass energy root s = 200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider. For D* mesons with fractional momenta 0.2< z< 0.5 in inclusive jets with 11.5 GeV mean transverse energy, the production rate is found to be N(D*(+) + D*(-))/N(jet) = 0.015 +/- 0.008(stat) +/- 0.007(sys). This rate is consistent with perturbative QCD evaluation of gluon splitting into a pair of charm quarks and subsequent hadronization.
Published: 2009

23. K/pi Fluctuations at Relativistic Energies

Author: Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Baumgart, S., Beavis, D. R., Bellwied, R., Benedosso, F., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bombara, M., Bonner, B. E., Botje, M., Bouchet, J., Braidot, E., Brandin, A. V., Bruna, E., Bueltmann, S., Burton, T. P., Bystersky, M., Cai, X. Z., Caines, H., La Barca Sanchez, M. Calderon, Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cormier, T. M., Cosentino, M. R., Cramer, J. G., Crawford, H. J., Das, D., Das, S., Dash, S., Daugherity, M., Silva, L. C., Dedovich, T. G., Dephillips, M., Derevschikov, A. A., Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Edwards, W. R., Efimov, L. G., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gaillard, L., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S. M., Guimaraes, K. S. F. F., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hallman, T. J., Hamed, A., Harris, J. W., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Hollis, R. S., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W. W., Jakl, P., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V. Yu, Kikola, D. P., Kiryluk, J., Adam Kisiel, Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kopytine, M., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Kravtsov, V. I., Krueger, K., Krus, M., Kuhn, C., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H, Lee, J. H., Leight, W., Levine, M. J., Li, C., Li, N., Li, Y., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, J., Liu, L., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Ludlam, T., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Matis, H. S., Matulenko, Yu A., Mcdonald, D., Mcshane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mohanty, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Raniwala, R., Raniwala, S., Redwine, R., Reed, R., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Russcher, M. J., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., Scharenberg, R. P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, A., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shi, X-H, Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stadnik, A., Stanislaus, T. D. S., Staszak, D., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Symons, T. J. M., Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Tram, V. N., Trattner, A. L., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Buren, G., Leeuwen, M., Molen, A. M. Vander, Vanfossen, J. A. Jr, Varma, R., Vasconcelos, G. M. S., Vasilevski, I. M., Vasiliev, A. N., Videbaek, F., Vigdor, S. E., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, J. S., Wang, Q., Wang, X., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten, C. Jr, Wieman, H., Wissink, S. W., Witt, R., Wu, Y., Xie, W., Xu, N., Xu, Q. H., Xu, Y., Xu, Z., Yang, P., Yepes, P., Yip, K., Yoo, I-K, Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zuo, J. X., Star, Collaboration, Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 25.75.-q, 24.60.Ky, Hadron, General Physics and Astronomy, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Point, law.invention, Nuclear physics, law, 0103 physical sciences, multiplicity, Multiplicity (chemistry), Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, density, fluctuation, 010308 nuclear & particles physics, scaling, Heavy-Ion Collisions, Strangeness, Particle accelerator, Fermion, Qcd, Super Proton Synchrotron, NATURAL SCIENCES. Physics, Charged particle, PRIRODNE ZNANOSTI. Fizika, Qgp, High Energy Physics::Experiment, Atomic physics, Relativistic Heavy Ion Collider, Model, STAR detector
Abstract: We report results for $K/\pi$ fluctuations from Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. Our results for $K/\pi$ fluctuations in central collisions show little dependence on the incident energies studied and are on the same order as results observed by NA49 at the Super Proton Synchrotron in central Pb+Pb collisions at $\sqrt{s_{NN}}$ = 12.3 and 17.3 GeV. We also report results for the collision centrality dependence of $K/\pi$ fluctuations as well as results for $K^{+}/\pi^{+}$, $K^{-}/\pi^{-}$, $K^{+}/\pi^{-}$, and $K^{-}/\pi^{+}$ fluctuations. We observe that the $K/\pi$ fluctuations scale with the multiplicity density, $dN/d\eta$, rather than the number of participating nucleons., Comment: 6 pages, 4 figures
Published: 2009

24. rho(0) photoproduction in ultraperipheral relativistic heavy ion collisions at root s(NN)=200 GeV

Author: Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Baumgart, S., Beavis, D. R., Bellwied, R., Benedosso, F., Betts, R. R., Bhardwaj, S., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Blyth, S. L., Bombara, M., Bonner, B. E., Botje, M., Bouchet, J., Braidot, E., Brandin, A. V., Bueltmann, S., Burton, T. P., Bystersky, M., Cai, X. Z., Caines, H., Sanchez, Mcdb, Callner, J., Catu, O., Cebra, D., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, S. U., Clarke, R. F., Codrington, M. J. M., Coffin, J. P., Cormier, T. M., Cosentino, M. R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Daugherity, M., de Moura, M. M., Dedovich, T. G., DePhillips, M., Derevschikov, A. A., de Souza, R. D., Didenko, L., Dietel, T., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Du, F., Dunlop, J. C., Mazumdar, M. R. D., Edwards, W. R., Efimov, L. G., Elhalhuli, E., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C. A., Gaillard, L., Ganti, M. S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S. M., Guimaraes, Ksff, Gupta, A., Gupta, N., Guryn, W., Haag, B., Hallman, T. J., Hamed, A., Harris, J. W., He, W., Heinz, M., Henry, T. W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Hollis, R. S., Horner, M. J., Huang, H. Z., Hughes, E. W., Humanic, T. J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W. W., Jakl, P., Jin, F., Jones, P. G., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V. Y., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K. L., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kumar, A., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., Lange, S., LaPointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C. H., LeVine, M. J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Liu, L., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Ludlam, T., Lynn, D., Ma, G. L., Ma, J. G., Ma, Y. G., Mahapatra, D. P., Majka, R., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Matis, H. S., Matulenko, Y. A., McShane, T. S., Meschanin, A., Millane, J., Miller, M. L., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Nepali, C., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Pal, S. K., Panebratsev, Y., Pavlinov, A. I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A. M., Potekhin, M., Potukuchi, Bvks, Prindle, D., Pruneau, C., Pruthi, N. K., Putschke, J., Qattan, I. A., Raniwala, R., Raniwala, S., Ray, R. L., Relyea, D., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Russcher, M. J., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., Scharenberg, R. P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, A., Shahaliev, E., Shao, M., Sharma, M., Shi, X. H., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H. M., Srivastava, B., Stadnik, A., Stanislaus, T. D. S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Z., Surrow, B., Symons, T. J. M., de Toledo, A. S., Takahashi, J., Tang, A. H., Tang, Z., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tokarev, M., Trainor, T. A., Tram, V. N., Trattner, A. L., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van der Kolk, N., van Leeuwen, M., Molen, A. M. V., Varma, R., Vasconcelos, G. M. S., Vasilevski, I. M., Vasiliev, A. N., Vernet, R., Videbaek, F., Vigdor, S. E., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Waggoner, W. T., Wang, F., Wang, G., Wang, J. S., Wang, Q., Wang, X., Wang, X. L., Wang, Y., Webb, J. C., Westfall, G. D., Whitten, C., Wieman, H., Wissink, S. W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q. H., Xu, Z., Yepes, P., Yoo, I. K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., Zhang, W. M., Zhang, Y., Zhang, Z. P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., and Zuo, J. X.
Subjects: Hera, Physics, Nuclear, Complex Nuclei, Physics, Time Projection Chamber, Colliders, Diffractive Production, High Energy Physics::Experiment, Nuclear Experiment, Vector-Meson Production, Proton Scattering, Photon, Energies
Abstract: Photoproduction reactions occur when the electromagnetic field of a relativistic heavy ion interacts with another heavy ion. The STAR Collaboration presents a measurement of rho(0) and direct pi(+)pi(-) photoproduction in ultraperipheral relativistic heavy ion collisions at root s(NN) = 200 GeV. We observe both exclusive photoproduction and photoproduction accompanied by mutual Coulomb excitation. We find a coherent cross section of sigma(AuAu -> Au*Au*rho(0)) = 530 +/- 19(stat.) +/- 57(syst.) mb, in accord with theoretical calculations based on a Glauber approach, but considerably below the predictions of a color dipole model. The rho 0 transverse momentum spectrum (p(T)(2)) is fit by a double exponential curve including both coherent and incoherent coupling to the target nucleus; we find sigma(inc)/sigma(coh) = 0.29 +/- 0.03 (stat.) +/- 0.08 (syst.). The ratio of direct pi(+)pi(-) to rho(0) production is comparable to that observed in gamma(p) collisions at HERA and appears to be independent of photon energy. Finally, the measured rho(0) spin helicity matrix elements agree within errors with the expected s-channel helicity conservation.
Published: 2008

25. Measurement of Transverse Single-Spin Asymmetries for Dijet Production in Proton-Proton Collisions ats=200 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calderon De La Barca Sanchez, M., Callner, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, S.U., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magalie, Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, N., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Horner, M.J., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kurnadi, P., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, F., Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, L., Matis, H.S., Matulenko, Yu.A., McClain, C.J., McShane, T.S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E.P., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stevens, J., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tarnowsky, T., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van, N., Kolk, Der, Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, G., Wang, J.S., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten, C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: Proton, (2jet) spin, Physics, Multidisciplinary, Hadron, Drell-Yan, FOS: Physical sciences, General Physics and Astronomy, Parton, Jet (particle physics), pp, Electromagnetic Calorimeter, 01 natural sciences, transverse jet, High Energy Physics - Experiment, Deep-Inelastic Scattering, Momentum, Nuclear physics, High Energy Physics - Experiment (hep-ex), State Interactions, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], valence quark, Nuclear Experiment, 010306 general physics, p p, colliding beams polarized beam, pair production angular distribution, asymmetry Sivers function p, spin parton, transverse momentum correlation quark, sea hadron, hadroproduction small-angle magnetic detector, STAR experimental results Brookhaven RHIC Coll 200 GeV-cms, Hard-Scattering, Spin-½, Physics, 010308 nuclear & particles physics, Deep inelastic scattering, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, Pseudorapidity, High Energy Physics::Experiment
Abstract: We report the first measurement of the opening angle distribution between pairs of jets produced in high-energy collisions of transversely polarized protons. The measurement probes (Sivers) correlations between the transverse spin orientation of a proton and the transverse momentum directions of its partons. With both beams polarized, the wide pseudorapidity ($-1 \leq \eta \leq +2$) coverage for jets permits separation of Sivers functions for the valence and sea regions. The resulting asymmetries are all consistent with zero and considerably smaller than Sivers effects observed in semi-inclusive deep inelastic scattering (SIDIS). We discuss theoretical attempts to reconcile the new results with the sizable transverse spin effects seen in SIDIS and forward hadron production in pp collisions., Comment: 6 pages total, 1 Latex file, 3 PS files with figures
Published: 2007

26. OBSERVATIONS OF THE UNIDENTIFIED GAMMA-RAY SOURCE TeV J2032+4130 BY VERITAS

Author: VERITAS Collaboration, Aliu, E., Aune, T., Behera, B., Beilicke, M., Benbow, W., Berger, K., Bird, R., Buckley, J. H., Bugaev, V., Cardenzana, J. V, Cerruti, M., Chen, X., Ciupik, L., Connolly, M. P., Cui, W., Duke, C., Dumm, J., Errando, M., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Fortin, P., Fortson, L., Furniss, A., Galante, N., Gillanders, G. H., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Humensky, T. B., Kargaltsev, O., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krawczynski, H., Lang, M. J., Madhavan, A. S, Maier, G., Majumdar, P., McCann, A., Moriarty, P., Mukherjee, R., Nieto, D., de Bhroithe, A. O'Faolain, Ong, R. A., Otte, A. N., Pandel, D., Perkins, J. S., Pohl, M., Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Rajotte, J., Reyes, L. C., Reynolds, P. T., Richards, G. T., Roache, E., Sembroski, G. H., Skole, C., Staszak, D., Telezhinsky, I., Theiling, M., Tucci, J. V., Tyler, J., Varlotta, A., Vincent, S., Wakely, S. P., Weekes, T. C., Weinstein, A., Welsing, R., Williams, D. A., and Zitzer, B.
Subjects: separation, FOS: Physical sciences, population, Context (language use), Astrophysics, telescope, 01 natural sciences, Pulsar wind nebula, Power law, Prime (order theory), law.invention, Telescope, law, emission, 0103 physical sciences, follow-up, Minor axis, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, cygnus region, 010308 nuclear & particles physics, Gamma ray, Institut für Physik und Astronomie, Order (ring theory), Astronomy and Astrophysics, gamma rays: general, pulsars: individual (psr j2032+4127), astronomy, Space and Planetary Science, source tev-j2032+4130, ddc:520, galaxy, Astrophysics - High Energy Astrophysical Phenomena, discovery
Abstract: TeV J2032+4130 was the first unidentified source discovered at very high energies (VHE; E $>$ 100 GeV), with no obvious counterpart in any other wavelength. It is also the first extended source to be observed in VHE gamma rays. Following its discovery, intensive observational campaigns have been carried out in all wavelengths in order to understand the nature of the object, which have met with limited success. We report here on a deep observation of TeV J2032+4130, based on 48.2 hours of data taken from 2009 to 2012 by the VERITAS (Very Energetic Radiation Imaging Telescope Array System) experiment. The source is detected at 8.7 standard deviations ($\sigma$) and is found to be extended and asymmetric with a width of 9.5$^{\prime}$$\pm$1.2$^{\prime}$ along the major axis and 4.0$^{\prime}$$\pm$0.5$^{\prime}$ along the minor axis. The spectrum is well described by a differential power law with an index of 2.10 $\pm$ 0.14$_{stat}$ $\pm$ 0.21$_{sys}$ and a normalization of (9.5 $\pm$ 1.6$_{stat}$ $\pm$ 2.2$_{sys}$) $\times$ 10$^{-13}$TeV$^{-1}$ cm$^{-2}$ s$^{-1}$ at 1 TeV. We interpret these results in the context of multiwavelength scenarios which particularly favor the pulsar wind nebula (PWN) interpretation.
Published: 2014

27. VERITAS OBSERVATIONS OF GAMMA-RAY BURSTS DETECTED BYSWIFT

Author: VERITAS Collaboration, Acciari, V. A., Aliu, E., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bradbury, S. M., Buckley, J. H., Bugaev, V., Byrum, K., Cannon, A., Cesarini, A., Christiansen, J. L., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Duke, C., Errando, M., Falcone, A., Finley, J. P., Finnegan, G., Fortson, L., Furniss, A., Galante, N., Gall, D., Godambe, S., Griffin, S., Grube, J., Guenette, R., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Hui, C. M., Humensky, T. B., Jackson, D. J., Kaaret, P., Karlsson, N., Kertzman, M., Kieda, D., Krawczynski, H., Krennrich, F., Lang, M. J., Madhavan, A. S, Maier, G., McArthur, S., McCann, A., Moriarty, P., Newbold, M. D., Ong, R. A., Orr, M., Otte, A. N., Park, N., Perkins, J. S., Pohl, M., Prokoph, H., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Roache, E., Rose, H. J., Ruppel, J., Saxon, D. B., Schroedter, M., Sembroski, G. H., ��ent��rk, G. D., Smith, A. W., Staszak, D., Swordy, S. P., Te��i��, G., Theiling, M., Thibadeau, S., Tsurusaki, K., Varlotta, A., Vassiliev, V. V., Vincent, S., Vivier, M., Wakely, S. P., Ward, J. E., Weekes, T. C., Weinstein, A., Weisgarber, T., Williams, D. A., and Wood, M.
Subjects: Swift, Astrophysics::High Energy Astrophysical Phenomena, gamma-ray burst: general, Extinction (astronomy), fermi observations, FOS: Physical sciences, Context (language use), 1st survey, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, grb, 7. Clean energy, 01 natural sciences, law.invention, Telescope, afterglow emission, law, component, 0103 physical sciences, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, computer.programming_language, high-energy emission, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010308 nuclear & particles physics, gev-tev, light curves, Institut für Physik und Astronomie, Astronomy and Astrophysics, flares, Threshold energy, large-area telescope, Extragalactic background light, astroparticle physics, 13. Climate action, Space and Planetary Science, Astrophysics - High Energy Astrophysical Phenomena, Gamma-ray burst, computer, Fermi Gamma-ray Space Telescope
Abstract: We present the results of sixteen Swift-triggered GRB follow-up observations taken with the VERITAS telescope array from January, 2007 to June, 2009. The median energy threshold and response time of these observations was 260 GeV and 320 s, respectively. Observations had an average duration of 90 minutes. Each burst is analyzed independently in two modes: over the whole duration of the observations and again over a shorter time scale determined by the maximum VERITAS sensitivity to a burst with a t^-1.5 time profile. This temporal model is characteristic of GRB afterglows with high-energy, long-lived emission that have been detected by the Large Area Telescope (LAT) on-board the Fermi satellite. No significant VHE gamma-ray emission was detected and upper limits above the VERITAS threshold energy are calculated. The VERITAS upper limits are corrected for gamma-ray extinction by the extragalactic background light (EBL) and interpreted in the context of the keV emission detected by Swift. For some bursts the VHE emission must have less power than the keV emission, placing constraints on inverse Compton models of VHE emission., Comment: 11 pages, 6 figures
Published: 2011

28. The 2009 multiwavelength campaign on Mrk 421: Variability and correlation studies

Author: MAGIC Collaboration, J. Aleksić(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), S. Ansoldi(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), L. A. Antonelli(INAF National Institute for Astrophysics, I-00136 Rome, Italy), P. Antoranz(Università di Siena, and INFN Pisa, I-53100 Siena, Italy), A. Babic(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), P. Bangale(Max-Planck-Institut für Physik, D-80805 München, Germany), U. Barres de Almeida(Max-Planck-Institut für Physik, D-80805 München, Germany), J. A. Barrio(Universidad Complutense, E-28040 Madrid, Spain), J. Becerra González(Inst. de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain), W. Bednarek(University of Lodz, PL-90236 Lodz, Poland), K. Berger(Inst. de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain), E. Bernardini(Deutsches Elektronen-Synchrotron), A. Biland(ETH Zurich, CH-8093 Zurich, Switzerland), O. Blanch(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), R. K. Bock(Max-Planck-Institut für Physik, D-80805 München, Germany), S. Bonnefoy(Universidad Complutense, E-28040 Madrid, Spain), G. Bonnoli(INAF National Institute for Astrophysics, I-00136 Rome, Italy), F. Borracci(Max-Planck-Institut für Physik, D-80805 München, Germany), T. Bretz(Universität Würzburg, D-97074 Würzburg, Germany), E. Carmona(Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain), A. Carosi(INAF National Institute for Astrophysics, I-00136 Rome, Italy), D. Carreto Fidalgo(Universität Würzburg, D-97074 Würzburg, Germany), P. Colin(Max-Planck-Institut für Physik, D-80805 München, Germany), E. Colombo(Inst. de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain), J. L. Contreras(Universidad Complutense, E-28040 Madrid, Spain), J. Cortina(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), S. Covino(INAF National Institute for Astrophysics, I-00136 Rome, Italy), P. Da Vela(Università di Siena, and INFN Pisa, I-53100 Siena, Italy), F. Dazzi(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), A. De Angelis(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), G. De Caneva(Deutsches Elektronen-Synchrotron), B. De Lotto(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), C. Delgado Mendez(Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain), M. Doert(Technische Universität Dortmund, D-44221 Dortmund, Germany), A. Domínguez(Inst. de Astrofísica de Andalucía), D. Dominis Prester(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), D. Dorner(Universität Würzburg, D-97074 Würzburg, Germany), M. Doro(Università di Padova and INFN, I-35131 Padova, Italy), S. Einecke(Technische Universität Dortmund, D-44221 Dortmund, Germany), D. Eisenacher(Universität Würzburg, D-97074 Würzburg, Germany), D. Elsaesser(Universität Würzburg, D-97074 Würzburg, Germany), E. Farina(Università dell'Insubria, Como, I-22100 Como, Italy), D. Ferenc(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), M. V. Fonseca(Universidad Complutense, E-28040 Madrid, Spain), L. Font(Unitat de Física de les Radiacions, Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain), K. Frantzen(Technische Universität Dortmund, D-44221 Dortmund, Germany), C. Fruck(Max-Planck-Institut für Physik, D-80805 München, Germany), R. J. García López(Inst. de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain), M. Garczarczyk(Deutsches Elektronen-Synchrotron), D. Garrido Terrats(Unitat de Física de les Radiacions, Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain), M. Gaug(Unitat de Física de les Radiacions, Departament de Física, and CERES-IEEC, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain), G. Giavitto(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), N. Godinović(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), A. González Mu\ noz(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), S. R. Gozzini(Deutsches Elektronen-Synchrotron), A. Hadamek(Technische Universität Dortmund, D-44221 Dortmund, Germany), D. Hadasch(Institut de Ciències de l'Espai), A. Herrero(Inst. de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain), D. Hildebrand(ETH Zurich, CH-8093 Zurich, Switzerland), J. Hose(Max-Planck-Institut für Physik, D-80805 München, Germany), D. Hrupec(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), W. Idec(University of Lodz, PL-90236 Lodz, Poland), V. Kadenius(Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland), H. Kellermann(Max-Planck-Institut für Physik, D-80805 München, Germany), M. L. Knoetig(ETH Zurich, CH-8093 Zurich, Switzerland), J. Krause(Max-Planck-Institut für Physik, D-80805 München, Germany), J. Kushida(Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan), A. La Barbera(INAF National Institute for Astrophysics, I-00136 Rome, Italy), D. Lelas(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), N. Lewandowska(Universität Würzburg, D-97074 Würzburg, Germany), E. Lindfors(Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland), F. Longo(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), S. Lombardi(INAF National Institute for Astrophysics, I-00136 Rome, Italy), M. López(Universidad Complutense, E-28040 Madrid, Spain), R. López-Coto(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), A. López-Oramas(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), E. Lorenz(Max-Planck-Institut für Physik, D-80805 München, Germany), I. Lozano(Universidad Complutense, E-28040 Madrid, Spain), M. Makariev(Inst. for Nucl. Research and Nucl. Energy, BG-1784 Sofia, Bulgaria), K. Mallot(Deutsches Elektronen-Synchrotron), G. Maneva(Inst. for Nucl. Research and Nucl. Energy, BG-1784 Sofia, Bulgaria), N. Mankuzhiyil(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), K. Mannheim(Universität Würzburg, D-97074 Würzburg, Germany), L. Maraschi(INAF National Institute for Astrophysics, I-00136 Rome, Italy), B. Marcote(Universitat de Barcelona), M. Mariotti(Università di Padova and INFN, I-35131 Padova, Italy), M. Martínez(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), D. Mazin(Max-Planck-Institut für Physik, D-80805 München, Germany), U. Menzel(Max-Planck-Institut für Physik, D-80805 München, Germany), M. Meucci(Università di Siena, and INFN Pisa, I-53100 Siena, Italy), J. M. Miranda(Università di Siena, and INFN Pisa, I-53100 Siena, Italy), R. Mirzoyan(Max-Planck-Institut für Physik, D-80805 München, Germany), A. Moralejo(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), P. Munar-Adrover(Universitat de Barcelona), D. Nakajima(Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan), A. Niedzwiecki(University of Lodz, PL-90236 Lodz, Poland), K. Nilsson(Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland), N. Nowak(6,32,*), R. Orito(Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan), A. Overkemping(Technische Universität Dortmund, D-44221 Dortmund, Germany), S. Paiano(Università di Padova and INFN, I-35131 Padova, Italy), M. Palatiello(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), D. Paneque(6,*), R. Paoletti(Università di Siena, and INFN Pisa, I-53100 Siena, Italy), J. M. Paredes(Universitat de Barcelona), X. Paredes-Fortuny(Universitat de Barcelona), S. Partini(Università di Siena, and INFN Pisa, I-53100 Siena, Italy), M. Persic(Università di Udine, and INFN Trieste, I-33100 Udine, Italy), F. Prada(Inst. de Astrofísica de Andalucía), P. G. Prada Moroni(Università di Pisa, and INFN Pisa, I-56126 Pisa, Italy), E. Prandini(Università di Padova and INFN, I-35131 Padova, Italy), S. Preziuso(Università di Siena, and INFN Pisa, I-53100 Siena, Italy), I. Puljak(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), R. Reinthal(Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland), W. Rhode(Technische Universität Dortmund, D-44221 Dortmund, Germany), M. Ribó(Universitat de Barcelona), J. Rico(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), J. Rodriguez Garcia(Max-Planck-Institut für Physik, D-80805 München, Germany), S. Rügamer(Universität Würzburg, D-97074 Würzburg, Germany), A. Saggion(Università di Padova and INFN, I-35131 Padova, Italy), K. Saito(Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan), M. Salvati(INAF National Institute for Astrophysics, I-00136 Rome, Italy), K. Satalecka(Universidad Complutense, E-28040 Madrid, Spain), V. Scalzotto(Università di Padova and INFN, I-35131 Padova, Italy), V. Scapin(Universidad Complutense, E-28040 Madrid, Spain), C. Schultz(Università di Padova and INFN, I-35131 Padova, Italy), T. Schweizer(Max-Planck-Institut für Physik, D-80805 München, Germany), S. N. Shore(Università di Pisa, and INFN Pisa, I-56126 Pisa, Italy), A. Sillanpää(Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland), J. Sitarek(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), I. Snidaric(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), D. Sobczynska(University of Lodz, PL-90236 Lodz, Poland), F. Spanier(Universität Würzburg, D-97074 Würzburg, Germany), V. Stamatescu(IFAE, Edifici Cn., Campus UAB, E-08193 Bellaterra, Spain), A. Stamerra(INAF National Institute for Astrophysics, I-00136 Rome, Italy), T. Steinbring(Universität Würzburg, D-97074 Würzburg, Germany), J. Storz(Universität Würzburg, D-97074 Würzburg, Germany), S. Sun(Max-Planck-Institut für Physik, D-80805 München, Germany), T. Surić(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), L. Takalo(Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland), F. Tavecchio(INAF National Institute for Astrophysics, I-00136 Rome, Italy), P. Temnikov(Inst. for Nucl. Research and Nucl. Energy, BG-1784 Sofia, Bulgaria), T. Terzić(Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia), D. Tescaro(Inst. de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain), M. Teshima(Max-Planck-Institut für Physik, D-80805 München, Germany), J. Thaele(Technische Universität Dortmund, D-44221 Dortmund, Germany), O. Tibolla(Universität Würzburg, D-97074 Würzburg, Germany), D. F. Torres(Institut de Ciències de l'Espai), T. Toyama(Max-Planck-Institut für Physik, D-80805 München, Germany), A. Treves(Università dell'Insubria, Como, I-22100 Como, Italy), M. Uellenbeck(Technische Universität Dortmund, D-44221 Dortmund, Germany), P. Vogler(ETH Zurich, CH-8093 Zurich, Switzerland), R. M. Wagner(Max-Planck-Institut für Physik, D-80805 München, Germany), F. Zandanel(Inst. de Astrofísica de Andalucía), R. Zanin(Universitat de Barcelona), VERITAS collaboration(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), (Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), S. Archambault(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), B. Behera(Deutsches Elektronen-Synchrotron), M. Beilicke(Department of Physics, Washington University, St. Louis, MO 63130, USA), W. Benbow(Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA), R. Bird(School of Physics, University College Dublin, Belfield, Dublin 4, Ireland), J. H. Buckley(Department of Physics, Washington University, St. Louis, MO 63130, USA), V. Bugaev(Department of Physics, Washington University, St. Louis, MO 63130, USA), M. Cerruti(Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA), X. Chen(Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam-Golm, Germany), L. Ciupik(Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, USA), E. Collins-Hughes(School of Physics, University College Dublin, Belfield, Dublin 4, Ireland), W. Cui(Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA), J. Dumm(School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA), J. D. Eisch(Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA), A. Falcone(Department of Astronomy and Astrophysics, 525 Davey Lab, Pennsylvania State University, University Park, PA 16802, USA), S. Federici(DESY, Platanenallee 6, 15738 Zeuthen, Germany), Q. Feng(Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA), J. P. Finley(Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA), H. Fleischhack(Deutsches Elektronen-Synchrotron), P. Fortin(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA), L. Fortson(School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA), A. Furniss(Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064, USA), S. Griffin(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), S. T. Griffiths(Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, USA), J. Grube(Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, USA), G. Gyuk(Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, USA), D. Hanna(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), J. Holder(Department of Physics and Astronomy and the Bartol Research Institute, University of Delaware, Newark, DE 19716, USA), G. Hughes(Deutsches Elektronen-Synchrotron), T. B. Humensky(Physics Department, Columbia University, New York, NY 10027, USA), C. A. Johnson(Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064, USA), P. Kaaret(Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, USA), M. Kertzman(Department of Physics and Astronomy, DePauw University, Greencastle, IN 46135-0037, USA), Y. Khassen(School of Physics, University College Dublin, Belfield, Dublin 4, Ireland), D. Kieda(Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA), H. Krawczynski(Department of Physics, Washington University, St. Louis, MO 63130, USA), F. Krennrich(Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA), S. Kumar(Department of Physics and Astronomy and the Bartol Research Institute, University of Delaware, Newark, DE 19716, USA), M. J. Lang(School of Physics, National University of Ireland Galway, University Road, Galway, Ireland), G. Maier(Deutsches Elektronen-Synchrotron), S. McArthur(Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA), K. Meagher(School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, 837 State Street NW, Atlanta, GA 30332-0430), P. Moriarty(Department of Life and Physical Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland), R. Mukherjee(Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, USA), R. A. Ong(Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA), A. N. Otte(School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, 837 State Street NW, Atlanta, GA 30332-0430), N. Park(Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA), A. Pichel(Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67 - Sucursal 28), M. Pohl(Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam-Golm, Germany), A. Popkow(Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA), H. Prokoph(Deutsches Elektronen-Synchrotron), J. Quinn(School of Physics, University College Dublin, Belfield, Dublin 4, Ireland), K. Ragan(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), J. Rajotte(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), P. T. Reynolds(Department of Applied Physics and Instrumentation, Cork Institute of Technology, Bishopstown, Cork, Ireland), G. T. Richards(School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, 837 State Street NW, Atlanta, GA 30332-0430), E. Roache(Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA), A. C. Rovero(Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67 - Sucursal 28), G. H. Sembroski(Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA), K. Shahinyan(School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA), D. Staszak(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), I. Telezhinsky(Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam-Golm, Germany), M. Theiling(Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA), J. V. Tucci(Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA), J. Tyler(Physics Department, McGill University, Montreal, QC H3A 2T8, Canada), A. Varlotta(Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA), S. P. Wakely(Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA), T. C. Weekes(Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA), A. Weinstein(Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA), R. Welsing(Deutsches Elektronen-Synchrotron), A. Wilhelm(Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam-Golm, Germany), D. A. Williams(Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064, USA), B. Zitzer(Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA), External collaborators(INAF, Osservatorio Astronomico di Torino, I-10025 Pino Torinese), (INAF, Osservatorio Astronomico di Torino, I-10025 Pino Torinese), M. Villata(INAF, Osservatorio Astronomico di Torino, I-10025 Pino Torinese), C. Raiteri(INAF, Osservatorio Astronomico di Torino, I-10025 Pino Torinese), H. D. Aller(Department of Astronomy, University of Michigan, Ann Arbor, MI 48109-1042, USA), M. F. Aller(Department of Astronomy, University of Michigan, Ann Arbor, MI 48109-1042, USA), W. P. Chen(Graduate Institute of Astronomy, National Central University, Jhongli 32054, Taiwan), B. Jordan(School of Cosmic Physics, Dublin Institute for Advanced Studies, Dublin, 2, Ireland), E. Koptelova(Graduate Institute of Astronomy, National Central University, Jhongli 32054, Taiwan), O. M. Kurtanidze(Abastumani Observatory, Mt. Kanobili, 0301 Abastumani, Georgia), A. Lähteenmäki(Aalto University Metsähovi Radio Observatory Metsähovintie 114 FIN-02540 Kylmälä Finland), B. McBreen(University College Dublin, Belfield, Dublin 4, Ireland), V. M. Larionov(Isaac Newton Institute of Chile, St. Petersburg Branch, St. Petersburg, Russia), C. S. Lin(Graduate Institute of Astronomy, National Central University, Jhongli 32054, Taiwan), M. G. Nikolashvili(Abastumani Observatory, Mt. Kanobili, 0301 Abastumani, Georgia), E. Angelakis(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany), M. Capalbi(ASI-Science Data Center, Via del Politecnico, I-00133 Rome, Italy), A. Carrami\ nana(Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, Puebla 72840, Mexico), L. Carrasco(Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, Puebla 72840, Mexico), P. Cassaro(INAF Istituto di Radioastronomia, Sezione di Noto, Contrada Renna Bassa, 96017 Noto), A. Cesarini(Department of Physics, University of Trento, I38050, Povo, Trento, Italy), L. Fuhrmann(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany), M. Giroletti(INAF Istituto di Radioastronomia, 40129 Bologna, Italy), T. Hovatta(Cahill Center for Astronomy and Astrophysics, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125), T. P. Krichbaum(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany), H. A. Krimm(Astro Space Center of the Lebedev Physical Institute, 117997 Moscow, Russia), W. Max-Moerbeck(Cahill Center for Astronomy and Astrophysics, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125), J. W. Moody(Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA), G. Maccaferri(INAF Istituto di Radioastronomia, Stazione Radioastronomica di Medicina, I-40059 Medicina), Y. Mori(Department of Physics, Tokyo Institute of Technology, Meguro City, Tokyo 152-8551, Japan), I. Nestoras(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany), A. Orlati(INAF Istituto di Radioastronomia, Stazione Radioastronomica di Medicina, I-40059 Medicina), C. Pace(Indiana University, Department of Astronomy, Swain Hall West 319, Bloomington, IN 47405-7105, USA), R. Pearson(Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA), M. Perri(INAF National Institute for Astrophysics, I-00136 Rome, Italy), A. C. S. Readhead(Cahill Center for Astronomy and Astrophysics, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125), J. L. Richards(Department of Physics, Purdue University, 525 Northwestern Ave, West Lafayette, IN 47907), A. C. Sadun(Department of Physics, University of Colorado, Denver, CO 80220, USA), T. Sakamoto(Department of Physics and Mathematics, College of Science and 952 Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuoku, Sagamihara-shi Kanagawa 252-5258, Japan), J. Tammi(Aalto University Metsähovi Radio Observatory Metsähovintie 114 FIN-02540 Kylmälä Finland), M. Tornikoski(Aalto University Metsähovi Radio Observatory Metsähovintie 114 FIN-02540 Kylmälä Finland), Y. Yatsu(Department of Physics, Tokyo Institute of Technology, Meguro City, Tokyo 152-8551, Japan), A. Zook(Department of Physics and Astronomy, Pomona College, Claremont CA 91711-6312, USA), Aleksić, J, Ansoldi, Stefano, Antonelli, L. A., Antoranz, P., Babic, A., Bangale, P., Barres De Almeida, U., Barrio, J. A., Becerra González, J., Bednarek, W., Berger, K., Bernardini, E., Biland, A., Blanch, O., Bock, R. K., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Carreto Fidalgo, D., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Caneva, G., De Lotto, B., Delgado Mendez, C., Doert, M., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Eisenacher, D., Elsaesser, D., Farina, E., Ferenc, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., García López, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giavitto, G., Godinović, N., González Muñoz, A., Gozzini, S. R., Hadamek, A., Hadasch, D., Herrero, A., Hildebrand, D., Hose, J., Hrupec, D., Idec, W., Kadenius, V., Kellermann, H., Knoetig, M. L., Krause, J., Kushida, J., La Barbera, A., Lelas, D., Lewandowska, N., Lindfors, E., Longo, Francesco, Lombardi, S., López, M., López Coto, R., López Oramas, A., Lorenz, E., Lozano, I., Makariev, M., Mallot, K., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Meucci, M., Miranda, J. M., Mirzoyan, R., Moralejo, A., Munar Adrover, P., Nakajima, D., Niedzwiecki, A., Nilsson, K., Nowak, N., Orito, R., Overkemping, A., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes Fortuny, X., Partini, S., Persic, M., Prada, F., Prada Moroni, P. G., Prandini, E., Preziuso, S., Puljak, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rodriguezgarcia, J., Rügamer, S., Saggion, A., Saito, K., Salvati, M., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Spanier, F., Stamatescu, V., Stamerra, A., Steinbring, T., Storz, J., Sun, S., Surić, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Tibolla, O., Torres, D. F., Toyama, T., Treves, A., Uellenbeck, M., Vogler, P., Wagner, R. M., Zandanel, F., Zanin, R., Archambault, S., Behera, B., Beilicke, M., Benbow, W., Bird, R., Buckley, J. H., Bugaev, V., Cerruti, M., Chen, X., Ciupik, L., Collins Hughes, E., Cui, W., Dumm, J., Eisch, J. D., Falcone, A., Federici, S., Feng, Q., Finley, J. P., Fleischhack, H., Fortin, P., Fortson, L., Furniss, A., Griffin, S., Griffiths, S. T., Grube, J., Gyuk, G., Hanna, D., Holder, J., Hughes, G., Humensky, T. B., Johnson, C. A., Kaaret, P., Kertzman, M., Khassen, Y., Kieda, D., Krawczynski, H., Krennrich, F., Kumar, S., Lang, M. J., Maier, G., Mcarthur, S., Meagher, K., Moriarty, P., Mukherjee, R., Ong, R. A., Otte, A. N., Park, N., Pichel, A., Pohl, M., Popkow, A., Prokoph, H., Quinn, J., Ragan, K., Rajotte, J., Reynolds, P. T., Richards, G. T., Roache, E., Rovero, A. C., Sembroski, G. H., Shahinyan, K., Staszak, D., Telezhinsky, I., Theiling, M., Tucci, J. V., Tyler, J., Varlotta, A., Wakely, S. P., Weekes, T. C., Weinstein, A., Welsing, R., Wilhelm, A., Williams, D. A., Zitzer, B., Villata, M., Raiteri, C., Aller, H. D., Aller, M. F., Chen, W. P., Jordan, B., Koptelova, E., Kurtanidze, O. M., Lähteenmäki, A., Mcbreen, B., Larionov, V. M., Lin, C. S., Nikolashvili, M. G., Angelakis, E., Capalbi, M., Carramiñana, A., Carrasco, L., Cassaro, P., Cesarini, A., Fuhrmann, L., Giroletti, M., Hovatta, T., Krichbaum, T. P., Krimm, H. A., Max Moerbeck, W., Moody, J. W., Maccaferri, G., Mori, Y., Nestoras, I., Orlati, A., Pace, C., Pearson, R., Perri, M., Readhead, A. C. S., Richards, J. L., Sadun, A. C., Sakamoto, T., Tammi, J., Tornikoski, M., Yatsu, Y., Zook, A., Department of Radio Science and Engineering, Aalto-yliopisto, Aalto University, and Universitat de Barcelona
Subjects: Astrofísica, Brightness, Ciencias Físicas, blazars, Astrophysics, telescope, x-ray variability, 01 natural sciences, Spectral line, BL Lacertae objects, individual, Mrk 421, purl.org/becyt/ford/1 [https], Raigs gamma, emission, MAGIC (telescope), 010303 astronomy & astrophysics, Physics, astro-ph.HE, High Energy Astrophysical Phenomena (astro-ph.HE), individual: Mrk 421 [BL Lacertae objects], Galaxies: BL Lacertae objects: individual: Markarian 421, Spectral energy distribution, Electrónica, Electricidad, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Context (language use), Astrophysics::Cosmology and Extragalactic Astrophysics, power spectra, BL Lacertae object, tev photons, 0103 physical sciences, Nucli galàctic actiu, bl lacertae objects: individual: mrk 421, Blazar, Astronomy and Astrophysics, Space and Planetary Science, Active galactic nuclei, 010308 nuclear & particles physics, light curves, Gamma rays, Institut für Physik und Astronomie, purl.org/becyt/ford/1.3 [https], Light curve, Galaxies, Galàxies, Astronomía, Crab Nebula, optical variability, active galactic nuclei, Galàxies actives, Active galaxies, markarian-421, ddc:520
Abstract: We performed a 4.5-month multi-instrument campaign (from radio to VHE gamma rays) on Mrk421 between January 2009 and June 2009, which included VLBA, F-GAMMA, GASP-WEBT, Swift, RXTE, Fermi-LAT, MAGIC, and Whipple, among other instruments and collaborations. Mrk421 was found in its typical (non-flaring) activity state, with a VHE flux of about half that of the Crab Nebula, yet the light curves show significant variability at all wavelengths, the highest variability being in the X-rays. We determined the power spectral densities (PSD) at most wavelengths and found that all PSDs can be described by power-laws without a break, and with indices consistent with pink/red-noise behavior. We observed a harder-when-brighter behavior in the X-ray spectra and measured a positive correlation between VHE and X-ray fluxes with zero time lag. Such characteristics have been reported many times during flaring activity, but here they are reported for the first time in the non-flaring state. We also observed an overall anti-correlation between optical/UV and X-rays extending over the duration of the campaign. The harder-when-brighter behavior in the X-ray spectra and the measured positive X-ray/VHE correlation during the 2009 multi-wavelength campaign suggests that the physical processes dominating the emission during non-flaring states have similarities with those occurring during flaring activity. In particular, this observation supports leptonic scenarios as being responsible for the emission of Mrk421 during non-flaring activity. Such a temporally extended X-ray/VHE correlation is not driven by any single flaring event, and hence is difficult to explain within the standard hadronic scenarios. The highest variability is observed in the X-ray band, which, within the one-zone synchrotron self-Compton scenario, indicates that the electron energy distribution is most variable at the highest energies., Comment: Accepted for publication in A&A, 18 pages, 14 figures (v2 has a small modification in the acknowledgments, and also corrects a typo in the field "author" in the metadata)
Published: 2015
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29. The most powerful flaring activity from the NLSy1 PMN J0948+0022

Author: V. Bugaev, D. Staszak, J. P. Finley, Daniel Nieto, K. Ragan, T. B. Humensky, Josefin Larsson, Reshmi Mukherjee, K. Meagher, Talvikki Hovatta, G. H. Sembroski, L. Ciupik, P. Fortin, Abraham D. Falcone, J. V. Tucci, Gernot Maier, B. Zitzer, Ralph Bird, J. Tyler, Wystan Benbow, J. Grube, Manel Errando, S. Kumar, R. A. Ong, C. M. Raiteri, S. P. Wakely, S. T. Griffiths, Filippo D'Ammando, J. D. Eisch, K. Berger, Julien Rousselle, Hugh Dickinson, A. Weinstein, M. J. Lang, P. Kar, David A. Williams, John L. Quinn, N. Håkansson, Henrike Fleischhack, A. Varlotta, A. N. Otte, A. O'Faolain de Bhroithe, A. W. Smith, A. McCann, A. Popkow, Geza Gyuk, I. Telezhinsky, G. H. Gillanders, Gordon T. Richards, E. Roache, Jamie Holder, F. Krennrich, Marcos Santander, Matteo Cerruti, Walter Max-Moerbeck, Anthony C. S. Readhead, H. Prokoph, J. S. Perkins, David Kieda, J. V. Cardenzana, M. Pohl, Amy Furniss, L. Gérard, P. Moriarty, Matthias Beilicke, Lucy Fortson, M. Kertzman, J. L. Richards, Xuhui Chen, Y. Khassen, Vladimir Vassiliev, M. Orienti, E. Pueschel, P. T. Reynolds, Justin D. Finke, R. Welsing, Aalto-yliopisto, Aalto University, D'Ammando, F., Orienti, M., Finke, J., Raiteri, C. M., Hovatta, T., Larsson, J., Max-Moerbeck, W., Perkins, J., Readhead, A. C. S., Richards, J. L., Beilicke, M., Benbow, W., Berger, K., Bird, R., Bugaev, V., Cardenzana, J. V., Cerruti, M., Chen, X., Ciupik, L., Dickinson, H. J., Eisch, J. D., Errando, M., Falcone, A., Finley, J. P., Fleischhack, H., Fortin, P., Fortson, L., Furniss, A., Gerard, L., Gillanders, G. H., Griffiths, S. T., Grube, J., Gyuk, G., Håkansson, N., Holder, J., Humensky, T. B., Kar, P., Kertzman, M., Khassen, Y., Kieda, D., Krennrich, F., Kumar, S., Lang, M. J., Maier, G., Mccann, A., Meagher, K., Moriarty, P., Mukherjee, R., Nieto, D., de Bhróithe, A. O'Faoláin, Ong, R. A., Otte, A. N., Pohl, M., Popkow, A., Prokoph, H., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rousselle, J., Santander, M., Sembroski, G. H., Smith, A. W., Staszak, D., Telezhinsky, I., Tucci, J. V., Tyler, J., Varlotta, A., Vassiliev, V. V., Wakely, S. P., Weinstein, A., Welsing, R., Williams, D. A., and Zitzer, B.
Subjects: extragalactic background light, multiwavelength observations, Active galactic nucleus, spectrum radio quasars, individual: PMN J0948+0022 [galaxies], Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, nuclei [galaxies], FOS: Physical sciences, galaxies: active, galaxies: individual: PMN J0948+0022, galaxies: nuclei, galaxies: Seyfert, gamma-rays: general, Owens Valley Radio Observatory, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, galaxies: active-galaxies: individual: pmn j0948+0022, line seyfert 1, Luminosity, law.invention, Telescope, law, Seyfert [galaxies], quasar pks 1510-089, relativistic jets, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, galactic nuclei, ta115, ta213, galaxies: individual: PMN J0948+0022, Astronomy, Astronomy and Astrophysics, gamma-rays: general, gamma-ray emission, galaxies: Seyfert, large-area telescope, x-ray, 13. Climate action, Space and Planetary Science, active [galaxies], ddc:520, Spectral energy distribution, galaxies: nuclei, Astrophysics - High Energy Astrophysical Phenomena, Radio astronomy, Flare, Fermi Gamma-ray Space Telescope, general [gamma-rays]
Abstract: Monthly notices of the Royal Astronomical Society 446(3), 2456 - 2467 (2015). doi:10.1093/mnras/stu2251, We report on multifrequency observations performed during 2012 December–2013 August of the first narrow-line Seyfert 1 galaxy detected in $\gamma$-rays, PMN J0948+0022 (z = 0.5846). A γ-ray flare was observed by the Large Area Telescope on board Fermi during 2012 December–2013 January, reaching a daily peak flux in the 0.1–100 GeV energy range of (155 $\pm$ 31) × $10^{−8}$ ph $cm^{−2} s^{−1}$ on 2013 January 1, corresponding to an apparent isotropic luminosity of $\sim$ 1.5 × $10^{48}$ erg $s^{−1}$. The $\gamma$-ray flaring period triggered Swift and Very Energetic Radiation Imaging Telescope Array System (VERITAS) observations in addition to radio and optical monitoring by Owens Valley Radio Observatory, Monitoring Of Jets in Active galactic nuclei with VLBA Experiments, and Catalina Real-time Transient Survey. A strong flare was observed in optical, UV, and X-rays on 2012 December 30, quasi-simultaneously to the $\gamma$-ray flare, reaching a record flux for this source from optical to $\gamma$-rays. VERITAS observations at very high energy (E > 100 GeV) during 2013 January 6–17 resulted in an upper limit of $F_{>0.2 TeV}$ < 4.0 × $10^{−12} ph cm^{−2} s^{−1}$. We compared the spectral energy distribution (SED) of the flaring state in 2013 January with that of an intermediate state observed in 2011. The two SEDs, modelled as synchrotron emission and an external Compton scattering of seed photons from a dust torus, can be modelled by changing both the electron distribution parameters and the magnetic field., Published by Oxford Univ. Press, Oxford
Published: 2015

30. VERITAS Observations of Six Bright, Hard-Spectrum Fermi-LAT Blazars

Author: S. McArthur, Martin Pohl, T. Aune, J. Dumm, A. O'Faolain de Bhroithe, H. Krawczynski, D. B. Saxon, S. Griffin, A. N. Otte, D. S. Hanna, S. Thibadeau, Jason X. Prochaska, N. H. Park, R. A. Ong, Markus Böttcher, D. Horan, A. Bouvier, F. Krennrich, J. H. Buckley, M. Orr, Wystan Benbow, L. Ciupik, P. T. Reynolds, Gernot Maier, K. Ragan, S. P. Wakely, H. Prokoph, V. V. Vassiliev, N. Galante, S. Vincent, Abraham D. Falcone, D. Gall, David A. Williams, R. Mukherjee, J. S. Perkins, A. Pichel, E. Collins-Hughes, P. Fortin, T. Arlen, M. P. Connolly, G. Finnegan, A. McCann, B. Zitzer, A. Cesarini, A. S Madhavan, C. Duke, Q. Feng, John L. Quinn, E. Aliu, A. Varlotta, Geza Gyuk, Lucy Fortson, H. Huan, K. Lee, Pratik Majumdar, J. Grube, Manel Errando, Kyle F. Kaplan, I. Telezhinsky, Jamie Holder, J. P. Finley, E. Roache, A. Furniss, L. C. Reyes, T. C. Weekes, R. Dickherber, G. H. Sembroski, R. Welsing, D. Staszak, Michele Fumagalli, Y. Khassen, P. Kaaret, N. Karlsson, S. Federici, P. Moriarty, Wei Cui, S. Archambault, M. Theiling, G. Tešić, T. J. N. Nelson, V. Bugaev, A. Weinstein, M. Vivier, M. Beilicke, David Kieda, K. Tsurusaki, S. Godambe, Aliu, E, Archambault, S, Arlen, T, Aune, T, Beilicke, M, Benbow, W, Bottcher, M, Bouvier, A, Buckley, J, Bugaev, V, Cesarini, A, Ciupik, L, Collins-Hughes, E, Connolly, M, Cui, W, Dickherber, R, Duke, C, Dumm, J, Errando, M, Falcone, A, Federici, S, Feng, Q, Finley, J, Finnegan, G, Fortson, L, Furniss, A, Galante, N, Gall, D, Godambe, S, Griffin, S, Grube, J, Gyuk, G, Hanna, D, Holder, J, Huan, H, Kaaret, P, Karlsson, N, Khassen, Y, Kieda, D, Krawczynski, H, Krennrich, F, Lee, K, Madhavan, A, Maier, G, Majumdar, P, Mcarthur, S, Mccann, A, Moriarty, P, Mukherjee, R, Nelson, T, De Bhroithe, A, Ong, R, Orr, M, Otte, A, Park, N, Perkins, J, Pichel, A, Pohl, M, Prokoph, H, Quinn, J, Ragan, K, Reyes, L, Reynolds, P, Roache, E, Saxon, D, Sembroski, G, Staszak, D, Telezhinsky, I, Tesic, G, Theiling, M, Thibadeau, S, Tsurusaki, K, Varlotta, A, Vassiliev, V, Vincent, S, Vivier, M, Wakely, S, Weekes, T, Weinstein, A, Welsing, R, Williams, D, Zitzer, B, Fortin, P, Horan, D, Fumagalli, M, Kaplan, K, and Prochaska, J
Subjects: Ciencias Físicas, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, 7. Clean energy, law.invention, purl.org/becyt/ford/1 [https], Telescope, law, 0103 physical sciences, gamma rays: galaxie, Astrophysics::Solar and Stellar Astrophysics, Blazar, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, media_common, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, general [BL Lacertae objects], 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Institut für Physik und Astronomie, Spectral density, Astronomy and Astrophysics, BL Lacertae objects: general, purl.org/becyt/ford/1.3 [https], Synchrotron, Redshift, Astronomía, Extragalactic background light, Space and Planetary Science, Sky, galaxies [gamma rays], Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Fermi Gamma-ray Space Telescope
Abstract: We report on VERITAS very high energy (VHE; E > 100 GeV) observations of six blazars selected from the Fermi Large Area Telescope First Source Catalog (1FGL). The gamma-ray emission from 1FGL sources was extrapolated up to the VHE band, taking gamma-ray absorption by the extragalactic background light into account. This allowed the selection of six bright, hard-spectrum blazars that were good candidate TeV emitters. Spectroscopic redshift measurements were attempted with the Keck Telescope for the targets without Sloan Digital Sky Survey spectroscopic data. No VHE emission is detected during the observations of the six sources described here. Corresponding TeV upper limits are presented, along with contemporaneous Fermi observations and non-concurrent Swift UVOT and X-Ray Telescope data. The blazar broadband spectral energy distributions (SEDs) are assembled and modeled with a single-zone synchrotron self-Compton model. The SED built for each of the six blazars shows a synchrotron peak bordering between the intermediate- and high-spectrum-peak classifications, with four of the six resulting in particle-dominated emission regions. Fil: Aliu, E.. Columbia University; Estados Unidos Fil: Archambault, S.. McGill University; Canadá Fil: Arlen, T.. University of California; Estados Unidos Fil: Aune, E.. University of California; Estados Unidos Fil: Beilicke, M.. University of Washington; Estados Unidos Fil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Bottcher, M.. Ohio University; Estados Unidos Fil: Bouvier, A.. University of California; Estados Unidos Fil: Buckley, J. H.. University of Washington; Estados Unidos Fil: Bugaev, V.. University of Washington; Estados Unidos Fil: Cesarini, A.. National University of Ireland Galway; Irlanda Fil: Ciupik, L.. Adler Planetarium and Astronomy Museum; Estados Unidos Fil: Collin Hughes, E.. University College Dublin; Irlanda Fil: Connolly, M. P.. National University of Ireland Galway; Irlanda Fil: Cui, W.. Purdue University; Estados Unidos Fil: Dickherber, R.. University of Washington; Estados Unidos Fil: Duke, C.. Grinnell College; Estados Unidos Fil: Dumm, J.. University Of Minnesota; Estados Unidos Fil: Errando, M.. Columbia University; Estados Unidos Fil: Falcone, A.. University of Pennsylvania; Estados Unidos Fil: Federici, S.. Desy; Alemania Fil: Feng, Q.. Purdue University; Estados Unidos Fil: Finley, J. P.. Purdue University; Estados Unidos Fil: Finnegan, G.. University of Utah; Estados Unidos Fil: Fortson, L.. University Of Minnesota; Estados Unidos Fil: Furniss, A.. University of California; Estados Unidos Fil: Galante, N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Gall, D.. University of Iowa; Estados Unidos Fil: Godambe, S.. University of Utah; Estados Unidos Fil: Griffin, S.. McGill University; Canadá Fil: Pichel, Ana Carolina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: The Veritas Collaboration.
Published: 2012

31. Multiwavelength observations of the previously unidentified blazar RX J0648.7+1516

Author: A. Cesarini, John L. Quinn, Stefano Ciprini, D. B. Saxon, N. Karlsson, N. H. Park, D. Staszak, K. Ragan, A. McCann, Geza Gyuk, Pratik Majumdar, Gernot Maier, B. Zitzer, Sinéad M. Griffin, S. P. Wakely, Daniel Gall, R. A. Ong, S. M. Bradbury, Lucy Fortson, E. Aliu, Manel Errando, Gareth Hughes, M. Kertzman, Markus Böttcher, V. V. Vassiliev, P. Moriarty, Nicola Galante, J. Tyler, Jamie Holder, L. Ciupik, Wystan Benbow, R. Dickherber, J. Grube, J. H. Buckley, G. Tešić, David Paneque, S. Thibadeau, L. C. Reyes, Henric Krawczynski, A. J.R. Weinstein, M. P. Connolly, A. Varlotta, C. M. Hui, F. Krennrich, Matthias Beilicke, K. Tsurusaki, David A. Williams, Jason X. Prochaska, Amy Furniss, Martin Pohl, G. Finnegan, A. W. Smith, M. Theiling, G. H. Gillanders, C. Duke, G. H. Sembroski, J. Ruppel, A. Bouvier, T. C. Weekes, E. Roache, S. Godambe, H. Huan, A. N. Otte, T. J. N. Nelson, David Kieda, Reshmi Mukherjee, D. S. Hanna, A. Cannon, Wei Cui, Michele Fumagalli, G. Decerprit, C. Skole, J. S. Perkins, H. Prokoph, P. T. Reynolds, Matthew R. Orr, P. Kaaret, A. Pichel, B. Hivick, Q. Feng, T. B. Humensky, T. Aune, H. J. Rose, A. D. Falcone, Kyle F. Kaplan, S. McArthur, V. Bugaev, Aliu, E, Aune, T, Beilicke, M, Benbow, W, Bottcher, M, Bouvier, A, Bradbury, S, Buckley, J, Bugaev, V, Cannon, A, Cesarini, A, Ciupik, L, Connolly, M, Cui, W, Decerprit, G, Dickherber, R, Duke, C, Errando, M, Falcone, A, Feng, Q, Finnegan, G, Fortson, L, Furniss, A, Galante, N, Gall, D, Gillanders, G, Godambe, S, Griffin, S, Grube, J, Gyuk, G, Hanna, D, Hivick, B, Holder, J, Huan, H, Hughes, G, Hui, C, Humensky, T, Kaaret, P, Karlsson, N, Kertzman, M, Kieda, D, Krawczynski, H, Krennrich, F, Maier, G, Majumdar, P, Mcarthur, S, Mccann, A, Moriarty, P, Mukherjee, R, Nelson, T, Ong, R, Orr, M, Otte, A, Park, N, Perkins, J, Pichel, A, Pohl, M, Prokoph, H, Quinn, J, Ragan, K, Reyes, L, Reynolds, P, Roache, E, Rose, H, Ruppel, J, Saxon, D, Sembroski, G, Skole, C, Smith, A, Staszak, D, Teisic, G, Theiling, M, Thibadeau, S, Tsurusaki, K, Tyler, J, Varlotta, A, Vassiliev, V, Wakely, S, Weekes, T, Weinstein, A, Williams, D, Zitzer, B, Ciprini, S, Fumagalli, M, Kaplan, K, Paneque, D, and Prochaska, J
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Ciencias Físicas, bl-lacertae objects, Flux, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Type (model theory), 01 natural sciences, 7. Clean energy, law.invention, Telescope, purl.org/becyt/ford/1 [https], Observatory, law, veritas, 0103 physical sciences, bl lacertae objects: individual (rx j0648.7+1516, 1fgl j0648.8+1516, ver j0648+152), gamma rays: galaxies, all-sky survey, individual 21 (RXJ0648.7+1516, 1FGL J0648.8+1516, VERJ0648+152) [BL Lacertae 20 objects], gamma rays: galaxie, Blazar, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), particle-acceleration, 010308 nuclear & particles physics, ray, Institut für Physik und Astronomie, Astronomy and Astrophysics, source catalog, purl.org/becyt/ford/1.3 [https], Redshift, Astronomía, large-area telescope, mission, 13. Climate action, Space and Planetary Science, galaxies [gamma rays], Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, BL Lac object, Fermi Gamma-ray Space Telescope
Abstract: We report on the VERITAS discovery of very-high-energy (VHE) gamma-ray emission above 200 GeV from the high-frequency-peaked BL Lac object RXJ0648.7+1516 (GBJ0648+1516), associated with 1FGL J0648.8+1516. The photon spectrum above 200 GeV is fit by a power law dN/dE = F0(E/E0)-Gamma with a photon index of 4.4 ± 0.8stat ± 0.3syst and a flux normalization F0 of (2.3± 0.5stat ±1.2sys)×10^-11 TeV^-1cm^-2s^-1 with E0 = 300 GeV. No VHE variability is detected during VERITAS observations of RXJ0648.7+1516 between 2010 March 4 and April 15. Following the VHE discovery, the optical identification and spectroscopic redshift were obtained using the Shane 3–m Telescope at the Lick Observatory, showing the unidentified object to be a BL Lac type with a redshift of z = 0.179. Broadband multiwavelength observations contemporaneous with the VERITAS exposure period can be used to sub-classify the blazar as a high-frequency-peaked BL Lac (HBL) object, including data from the MDM observatory, Swift -UVOT and XRT, and continuous monitoring at photon energies above 1 GeV from the Fermi Large Area Telescope (LAT). We find that in the absence of undetected, high-energy rapid variability, the one-zone synchrotron self-Compton model (SSC) overproduces the high-energy gamma-ray emission measured by the Fermi -LAT over 2.3 years. The SED can be parameterized satisfactorily with an external-Compton or lepto-hadronic model, which have two and six additional free parameters, respectively, compared to the one-zone SSC model. Fil: Aliu, E.. Columbia University; Estados Unidos Fil: Aune, T.. University of California; Estados Unidos Fil: Beilicke, M.. University of Washington; Estados Unidos Fil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Bottcher, M.. Ohio University; Estados Unidos Fil: Bouvier, A.. University of California; Estados Unidos Fil: Bradbury, S. M.. University of Leeds; Reino Unido Fil: Buckley, J. H.. Washington University; Estados Unidos Fil: Bugaev, V.. Washington University; Estados Unidos Fil: Cannon, A.. University College Dublin,; Irlanda Fil: Cesarini, A.. National University of Ireland Galway; Irlanda Fil: Ciupik, L.. Adler Planetarium and Astronomy; Estados Unidos Fil: Connolly, M. P.. National University of Ireland Galway; Irlanda Fil: Cui, W.. Purdue University; Estados Unidos Fil: Decerprit, D.. Desy; Alemania Fil: Dickherber, R.. Washington University; Estados Unidos Fil: Duke, C.. Grinnell College; Estados Unidos Fil: Errando, M.. Columbia University; Estados Unidos Fil: Falcone, A.. Pennsylvania State University; Estados Unidos Fil: Feng, Q.. Purdue University; Estados Unidos Fil: Finnegan, G.. University of Utah; Estados Unidos Fil: Fortson, L.. University of Minnesota; Estados Unidos Fil: Furniss, A.. University of California; Estados Unidos Fil: Galante, N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Gall, D.. University of Iowa; Estados Unidos Fil: Gillanders, G. H.. National University of Ireland Galway; Irlanda Fil: Godambe, S.. University of Utah; Estados Unidos Fil: Griffin, S.. McGill University; Canadá Fil: Grube, J.. Adler Planetarium and Astronomy Museum; Estados Unidos Fil: Pichel, Ana Carolina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: The Veritas Collaboration.
Published: 2011

32. Performance studies of the CMS Strip Tracker before installation

Author: Roberto Castello, P. Siegrist, Sukanta Dutta, A. Syed, J. Rochet, Pierre Marage, C. Mc Guinness, L. Quertermont, A. Bonnevaux, M. Galanti, S. Butt, Renato Potenza, M. Nigro, R. Brauer, A. Zatserklyaniy, Boris Mangano, Fabrizio Palla, C. Maazouzi, A. C. Kraan, A. Profeti, Kevin Burkett, M. Costa, Dario Bisello, Ariella Cattai, Frank Hartmann, Alin Titus Serban, Laura Borrello, V. Roberfroid, S. Steiner, P. Van Mechelen, Frederic Jean Ronga, Filippo Bosi, Jean-Laurent Agram, P. Sharp, Michael Wlochal, M. Cardaci, A. Linn, F. Maletta, Otilia Militaru, P. Cariola, M. Ceccanti, Donato Creanza, E. Skup, A. Satpathy, S. Schmid, Corrinne Mills, R. Stark, T. Affolder, J. Heyninck, Duong Nguyen, J. Lamb, Volker Adler, N. Luzhetskiy, E. Anttila, G. Martinelli, G. Guillot, G. De Robertis, D. Uhl, Nuno Leonardo, N. Estre, L. Simms, C. Avanzini, M. Wingham, R. Hamdorf, V. Radicci, T. Boccali, Christopher Martin, Josef Hrubec, E. A. De Wolf, J. L. Bonnet, C. Regenfus, Stephen Robert Wagner, A. Basti, S. Schael, Jorgen D'Hondt, Krzysztof Piotrzkowski, Geoffrey Hall, Finn Rebassoo, Guido Tonelli, Sebastiano Albergo, C. Cerri, D. Pandoulas, S. Hänsel, Pascal Vanlaer, Frank Raupach, Salvatore My, S. Reznikov, S. Linari, Othmane Bouhali, David Mason, F. Calzolari, Joe Incandela, W. Beaumont, Wolfgang Waltenberger, Ghislain Grégoire, Piergiulio Lenzi, Th. Hermanns, G. Maggi, Maurizio Biasini, C. Genta, Henrik Jeldtoft Jensen, R. Hooper, K. V. Tsang, B. Checcucci, Simone Gennai, Burton Betchart, A. Kuronen, N. De Filippis, L. Perchalla, T. Rommerskirchen, L. Zaccarelli, S. Kreyer, M. Pernicka, J. Chen, A. Furgeri, G. Magazzu, F. Manolescu, H. Postema, Devis Pantano, Teimuraz Lomtadze, M. Eppard, G. Gelin, S. Korjenevski, Nicola Pozzobon, I. Pal, R. Frühwirth, Max Weber, Alessandro Paccagnella, A. Onnela, N. Lumb, Matthew Scott Rudolph, P. Blüm, Mia Tosi, M. De Mattia, Y. Gotra, E. Delmeire, G. Segneri, Giuseppe Zito, Y. Shah, F. Didierjean, D. Benedetti, Olivier Devroede, Giovanni Petrucciani, Achim Stahl, F. Ambroglini, I. M. Anghel, Ettore Focardi, Gordon H. Hanson, Leonard Spiegel, Nicola Bacchetta, F. Dumitrache, S. Elgammal, M. Preda, Jonathan Fulcher, Tapio Lampén, L. Berretta, Dieter Jahn, C. Hinchey, Tommaso Dorigo, Markus Friedl, C. Ljuslin, Oliver Gutsche, T. Moulik, Horst Breuker, Lutz Feld, G. Baulieu, C. Sigaud, N. Rubinstein, T. Dupasquier, M. Fahrer, G. A. Lungu, Panja-Riina Luukka, M. Loreti, Robert Klanner, G. Dirkes, D. Heydhausen, Kristian Allan Hahn, I. Villella, Andrey Ostapchuk, Livio Fanò, D. Rizzi, P. Steck, L. Masetti, Ivan Reid, Ijaz Ahmed, A. S. Giolo-Nicollerat, S. Burke, K. Affolder, S. Moccia, Stefano Mersi, S. Tkaczyk, David Stuart, A. Moggi, Peter Schleper, S. Michal, Keith Ulmer, Philip Baringer, Jorma Tuominiemi, Piero Giorgio Verdini, Nicholas Cripps, Pierre Juillot, S. Cihangir, N. Giudice, Alexander Schmidt, Th. Müller, T. Speer, Gabriele Balestri, Gero Flucke, E. Bock, V. E. Bazterra, J. D. Richman, John A Coughlan, R. Stringer, C. Noeding, L. Benucci, M. De Palma, Daniel E. Hale, D. Ricci, F. Mariani, Veikko Karimäki, Oliver Pooth, M. Giorgi, C. Kukulies, Gaelle Boudoul, Gian Mario Bilei, G. De Lentdecker, Alexander Dierlamm, Lorenzo Foà, Otman Charaf, Roberto Dell'Orso, L. Kottelat, Roberto Chierici, Giancarlo Mantovani, Oliver Buchmuller, N. Magini, G. Bagliesi, J. Olzem, Vincent Lemaitre, A. Kaminsky, D. Michotte, G. Sala, M. Marcantonini, Piero Giubilato, J. Kostesmaa, T. Lindén, Jochen Kaminski, E. Butz, Georg Steinbrück, F. Raffaelli, M. A. Saizu, R. Ranieri, G. Kaussen, Barbara Clerbaux, M. Brianzi, Georgios Anagnostou, S. Giusti, Nhan Viet Tran, Jan Troska, Robert Bainbridge, Claude Amsler, Peter R Hobson, Domenico Giordano, M. Massa, Cristina Tuve, E. Zerev, Alberto Messineo, B. Trocme, John H. Wickens, Jean-Marie Brom, Meenakshi Narain, C. Vander Velde, M. Noy, J. Ribnik, Mark Pesaresi, H. Incandela, Alessia Tricomi, R. Robinson, S. Heier, I. Goitom, O. Zorba, A. Macchiolo, A. S. Cucoanes, D. Callahan, F. Drouhin, A. Crook, Philip Harris, U. Pein, Jaakko Härkönen, M. A. Borgia, Vitaliano Ciulli, Paolo Azzurri, U. Cazzola, P. Buhmann, Ulrich Goerlach, N. Guardone, L. Teodorescu, Elizaveta Shabalina, D. Kartashov, S. Taghavi, P. Van Hove, S. Vanzetto, Duccio Abbaneo, Andrea Rizzi, M. Oberegger, A. K. Honma, S. Frosali, C. Wastiels, I. Church, R. Strub, Eric Christian Chabert, C. Olivetto, A. Bocci, A. Candelori, Andrea Venturi, Rino Castaldi, Th. Keutgen, Valery Zhukov, Steve Nahn, Marco Meschini, R. Grabit, M. Gateau, Mariarosaria D'Alfonso, S. De Weirdt, S. Müller, D. Kcira, C. Bloch, X. Rouby, Alice Bean, Katja Klein, D. Sentenac, Derek Barge, E. Widl, B. Broccolo, Laurent Mirabito, J. Dietch, Steven Lowette, J. Hosselet, Regina Demina, Sandor Czellar, D. White, Johannes Hauk, Paolo Petagna, Serena Mattiazzo, G. Pierschel, Z. C. Yang, Peter Robmann, Paolo Spagnolo, B. Florins, Daniel Teyssier, Jean-Charles Fontaine, Andromachi Tsirou, A. Marchioro, Francisco Yumiceva, Karl Heinz Hoffmann, M. Thomas, A. Ronzhin, Attilio Santocchia, M. Frey, I. Akhtar, Francois Vasey, Karl Gill, M. Delattre, Marko Dragicevic, J. Stoner, C. K. Lae, V. Postolache, Geng-Yuan Jeng, H. Esser, F. Noto, D. Sprenger, Natale Demaria, J.D. Berst, Marvin Johnson, P. Van Mulders, M. Pioppi, Ernesto Migliore, Hans-Jürgen Simonis, G. Petragnani, Andrea Giammanco, S. Sanhueza, Gregory Habib Hammad, J. F. Pernot, H. Liu, Jean-Roch Vlimant, J. Muffat-Joly, G. Schwering, P. Tropea, Stefaan Tavernier, W. De Boer, Luigi Fiore, Cecilia Elena Gerber, M. H. Zoeller, Roberto Covarelli, Ian R Tomalin, P. Tempesta, J. P. Ernenwein, D. Orbaker, B. Ledermann, R. Farano, A. Soldani, R. Goorens, J. P Dewulf, G. Sanguinetti, E. Scarlini, S. Swain, Didier Contardo, S. Kyre, William J Spalding, Salvatore Costa, D. C. Miner, G. Parrini, E. De Langhe, L. Van Lancker, B. Caponeri, J. Kortesmaa, E. Babucci, Didar Dobur, F. Schirra, Paolo Lariccia, M. Ageron, N. Manna, S. Bianucci, Manfred Krammer, T. Miao, Kevin Sung, Thomas Bergauer, Roberto Cecchi, P Petit, Vincenzo Chiochia, Claudio Campagnari, Teppo Mäenpää, Mika Huhtinen, F. Benotto, C. Piccut, C. Paillard, R. Della Negra, Abdenour Lounis, M. Poettgens, A. Slav, L. Christofek, L. M. Edera, Bruno Wittmer, Joris Maes, Lucia Silvestris, Franco Ligabue, M. Vander Donckt, M. Tessaro, Joanne Cole, F. Bracci, Hien Nguyen, Eija Tuominen, L. Wilke, Roberto Tenchini, Pieter Everaerts, P. Graehling, T. Liamsuwan, Marcel Vos, S. Jaditz, R. Haroutunian, G. Landi, Simone Paoletti, Greg Landsberg, E. Daubie, D. Staszak, M. Nikolic, P. Mammini, H. Steininger, Francesco Fiori, F. P. Schilling, R. Ferorelli, Eric Chabanat, L. Gross, Stephane Perries, Raffaello D'Alessandro, F. Beissel, Gabriella Pasztor, S. Karaevski, Matthias Ulrich Mozer, Massimiliano Chiorboli, Giovanna Selvaggi, Günter Flügge, Wolfgang Adam, Patrizia Azzi, N. Giraud, P. Kalavase, Andrei Gritsan, S. Khalatian, Markus Stoye, E. Alagoz, V. Sparti, L. Servoli, Carlo Civinini, J. Garberson, Shreya Sarkar, E. Albert, Giacomo Sguazzoni, P. Engström, S. Tolaini, Alessandra Romero, Waclaw Karpinski, Alessandro Giassi, M. Abbas, Pushpalatha C Bhat, Gigi Rolandi, C. Gillissen, V. Khomenkov, Marcello Mannelli, C. M. Sutera, F. Palmonari, David Mark Raymond, Christophe Delaere, Giuseppe Benedetto Cerati, Kostas Kloukinas, A. Allen, Daniele Spiga, M. Hashemi, Giacomo Bruno, L. Bagby, R. Blaes, B. De Callatay, Jacopo Bernardini, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), informatique, Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Groupe de Recherche en Physique des Hautes Energies (GRPHE), Institut Universitaire de Technologie de Colmar-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), CMS, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut Universitaire de Technologie de Colmar, Adam, W., Bergauer, T., Dragicevic, M., Friedl, M., Fruehwirth, R., Haensel, S., Hrubec, J., Krammer, M., Oberegger, M., Pernicka, M., Schmid, S., Stark, R., Steininger, H., Uhl, D., Waltenberger, W., Widl, E., Van Mechelen, P., Cardaci, M., Beaumont, W., de Langhe, E., de Wolf, E. A., Delmeire, E., Hashemi, M., Bouhali, O., Charaf, O., Clerbaux, B., Dewulf, J. P., Elgammal, S., Hammad, G., de Lentdecker, G., Marage, P., Velde C., Vander, Vanlaer, P., Wickens, J., Adler, V., Devroede, O., De Weirdt, S., D'Hondt, J., Goorens, R., Heyninck, J., Maes, J., Mozer, M., Tavernier, S., Van Lancker, L., Van Mulders, P., Villella, I., Wastiels, C., Bonnet, J. L., Bruno, G., De Callatay, B., Florins, B., Giammanco, A., Gregoire, G., Keutgen, T. h., Kcira, D., Lemaitre, V., Michotte, D., Militaru, O., Piotrzkowski, K., Quertermont, L., Roberfroid, V., Rouby, X., Teyssier, D., Daubie, E., Anttila, E., Czellar, S., Engstrom, P., Harkonen, J., Karimaki, V., Kostesmaa, J., Kuronen, A., Lampen, T., Linden, T., Luukka, P. R., Maenpaa, T., Michal, S., Tuominen, E., Tuominiemi, J., Ageron, M., Baulieu, G., Bonnevaux, A., Boudoul, G., Chabanat, E., Chabert, E., Chierici, R., Contardo, D., Della Negra, R., Dupasquier, T., Gelin, G., Giraud, N., Guillot, G., Estre, N., Haroutunian, R., Lumb, N., Perries, S., Schirra, F., Trocme, B., Vanzetto, S., Agram, J. L., Blaes, R., Drouhin, F., Ernenwein, J. P., Fontaine, J. C., Berst, J. D., Brom, J. M., Didierjean, F., Goerlach, U., Graehling, P., Gross, L., Hosselet, J., Juillot, P., Lounis, A., Maazouzi, C., Olivetto, C., Strub, R., Van Hove, P., Anagnostou, G., Brauer, R., Esser, H., Feld, L., Karpinski, W., Klein, K., Kukulies, C., Olzem, J., Ostapchuk, A., Pandoulas, D., Pierschel, G., Raupach, F., Schael, S., Schwering, G., Sprenger, D., Thomas, M., Weber, M., Wittmer, B., Wlochal, M., Beissel, F., Bock, E., Flugge, G., Gillissen, C., Hermanns, T., Heydhausen, D., Jahn, D., Kaussen, G., Linn, A., Perchalla, L., Poettgens, M., Pooth, O., Stahl, A., Zoeller, M. H., Buhmann, P., Butz, E., Flucke, G., Hamdorf, R., Hauk, J., Klanner, R., Pein, U., Schleper, P., Steinbrueck, G., Bluem, P., De Boer, W., Dierlamm, A., Dirkes, G., Fahrer, M., Frey, M., Furgeri, A., Hartmann, F., Heier, S., Hoffmann, K. H., Kaminski, J., Ledermann, B., Liamsuwan, T., Mueller, S., Mueller, T. h., Schilling, F. P., Simonis, H. J., Steck, P., Zhukov, V., Cariola, P., De Robertis, G., Ferorelli, R., Fiore, L., Preda, M., Sala, G., Silvestris, L., Tempesta, P., Zito, G., Creanza, D., De Filippis, N., De Palma, M., Giordano, D., Maggi, G., Manna, N., My, S., Selvaggi, G., Albergo, S., Chiorboli, M., Costa, S., Galanti, M., Giudice, N., Guardone, N., Noto, F., Potenza, R., Saizu, M. 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S., Dell'Orso, R., Dobur, D., Dutta, S., Giassi, A., Giusti, S., Kartashov, D., Kraan, A., Lomtadze, T., Lungu, G. A., Magazzu, G., Mammini, P., Mariani, F., Martinelli, G., Moggi, A., Palla, F., Palmonari, F., Petragnani, G., Profeti, A., Raffaelli, F., Rizzi, D., Sanguinetti, G., Sarkar, S., Sentenac, D., Serban, A. T., Slav, A., Soldani, A., Spagnolo, P., Tenchini, R., Tolaini, S., Venturi, A., Verdini, P. G., Vos, M., Zaccarelli, L., Avanzini, C., Basti, A., Benucci, L., Bocci, A., Cazzola, U., Fiori, F., Linari, S., Massa, M., Messineo, A., Segneri, G., Tonelli, G., Azzurri, P., Bernardini, J., Borrello, L., Calzolari, Federico, Foa, L., Gennai, S., Ligabue, Franco, Petrucciani, G., Rizzi, A., Yang, Z., Benotto, F., Demaria, N., Dumitrache, F., Farano, R., Borgia, M. A., Castello, R., Costa, M., Migliore, E., Romero, A., Abbaneo, D., Abbas, M., Ahmed, I., Akhtar, I., Albert, E., Bloch, C., Breuker, H., Butt, S., Buchmuller, O., Cattai, A., Delaere, C., Delattre, M., Edera, L. 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Subjects: Chiller, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Silicon Detectors, CMS, education, Monte Carlo method, FOS: Physical sciences, 114 Physical sciences, 01 natural sciences, Large detector systems for particle and astroparticle physics ARXIV EPRINT, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Data acquisition, Particle tracking detectors, 0103 physical sciences, Electronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Instrumentation, Mathematical Physics, Physics, Large Hadron Collider, 010308 nuclear & particles physics, business.industry, Large detector systems for particle and astroparticle physics, Emphasis (telecommunications), Detector, Electrical engineering, Instrumentation and Detectors (physics.ins-det), Coolant, CMS strip tracker, business, performance
Abstract: In March 2007 the assembly of the Silicon Strip Tracker was completed at the Tracker Integration Facility at CERN. Nearly 15% of the detector was instrumented using cables, fiber optics, power supplies, and electronics intended for the operation at the LHC. A local chiller was used to circulate the coolant for low temperature operation. In order to understand the efficiency and alignment of the strip tracker modules, a cosmic ray trigger was implemented. From March through July 4.5 million triggers were recorded. This period, referred to as the Sector Test, provided practical experience with the operation of the Tracker, especially safety, data acquisition, power, and cooling systems. This paper describes the performance of the strip system during the Sector Test, which consisted of five distinct periods defined by the coolant temperature. Significant emphasis is placed on comparisons between the data and results from Monte Carlo studies., Comment: 40 pages, 39 figures
Published: 2009

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32 results on '"Staszak D"'

1. Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar

2. Very high-energy gamma-ray follow-up program using neutrino triggers from IceCube

3. Multiwavelength study of quiescent states of MRK 421 with unprecedented hard x-ray coverage provided by NuSTAR in 2013

4. A search for spectral hysteresis and energy-dependent time lags from X-ray and TeV gamma-ray observations of Mrk 421

5. Deep broadband observations of the distant gamma-ray blazar PKS 1424+240

6. A luminous and isolated gamma-ray flare from the blazar B2 1215+30

7. Search for Magnetically Broadened Cascade Emission From Blazars with VERITAS

8. Multiwavelength follow-up of a rare IceCube neutrino multiplet

9. First NuSTAR Observations of Mrk 501 within a Radio to TeV Multi-Instrument Campaign

10. Very high energy outburst of markarian 501 in may 2009

11. Investigating broadband variability of the TeV blazar 1ES 1959+650

12. Exceptionally Bright TEV Flares from the Binary LS I +61° 303

13. LONG TERM OBSERVATIONS OF B2 1215+30 WITH VERITAS

14. UPPER LIMITS FROM FIVE YEARS OF BLAZAR OBSERVATIONS WITH THE VERITAS CHERENKOV TELESCOPES

15. Stand-alone cosmic muon reconstruction before installation of the CMS silicon strip tracker

16. Alignment of the CMS silicon strip tracker during stand-alone commissioning

17. Long-term TeV and X-ray Observations of the Gamma-ray Binary HESS J0632+057

18. Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state

19. Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar

20. Inclusive pi(0), eta, and direct photon production at high transverse momentum in p plus p and d plus Au collisions at root s(NN)=200 GeV

21. Observation of pi(+)pi(-)pi(+)pi(-) photoproduction in ultraperipheral heavy-ion collisions at root s(NN)=200 GeV at the STAR detector

22. Measurement of D* mesons in jets from p plus p collisions at root s=200 GeV

23. K/pi Fluctuations at Relativistic Energies

24. rho(0) photoproduction in ultraperipheral relativistic heavy ion collisions at root s(NN)=200 GeV

25. Measurement of Transverse Single-Spin Asymmetries for Dijet Production in Proton-Proton Collisions ats=200 GeV

26. OBSERVATIONS OF THE UNIDENTIFIED GAMMA-RAY SOURCE TeV J2032+4130 BY VERITAS

27. VERITAS OBSERVATIONS OF GAMMA-RAY BURSTS DETECTED BYSWIFT

28. The 2009 multiwavelength campaign on Mrk 421: Variability and correlation studies

29. The most powerful flaring activity from the NLSy1 PMN J0948+0022

30. VERITAS Observations of Six Bright, Hard-Spectrum Fermi-LAT Blazars

31. Multiwavelength observations of the previously unidentified blazar RX J0648.7+1516

32. Performance studies of the CMS Strip Tracker before installation

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32 results on '"Staszak D"'

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