Author: "Buhler, R." - Searchworks@Jio Institute Digital Library Search Results

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75 results on '"Buhler, R."'

1. VHE gamma-ray emission of PKS 2155-304: spectral and temporal variability

Author: HESS Collaboration, Abramowski, A., Acero, F., Aharonian, F., Akhperjanian, A. G., Anton, G., de Almeida, U. Barres, Bazer-Bachi, A. R., Becherini, Y., Behera, B., Benbow, W., Bernlohr, K., Bochow, A., Boisson, C., Bolmont, J., Borrel, V., Brucker, J., Brun, F., Brun, P., Buhler, R., Bulik, T., Busching, I., Boutelier, T., Chadwick, P. M., Charbonnier, A., Chaves, R. C. G., Cheesebrough, A., Conrad, J., Chounet, L. -M., Clapson, A. C., Coignet, G., Costamante, L., Dalton, M., Daniel, M. K., Davids, I. D., Degrange, B., Deil, C., Dickinson, H. J., Djannati-Atai, A., Domainko, W., Drury, L. O'C., Dubois, F., Dubus, G., Dyks, J., Dyrda, M., Egberts, K., Eger, P., Espigat, P., Fallon, L., Farnier, C., Fegan, S., Feinstein, F., Fernandes, M. V., Fiasson, A., Foerster, A., Fontaine, G., Fussling, M., Gabici, S., Gallant, Y. A., Gerard, L., Gerbig, D., Giebels, B., Glicenstein, J. F., Glueck, B., Goret, P., Goering, D., Hampf, D., Hauser, M., Heinz, S., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J. A., Hoffmann, A., Hofmann, W., Hofverberg, P., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., de Jager, O. C., Jahn, C., Jung, I., Katarzynski, K., Katz, U., Kaufmann, S., Kerschhaggl, M., Khangulyan, D., Khelifi, B., Keogh, D., Klochkov, D., Kluzniak, W., Kneiske, T., Komin, Nu., Kosack, K., Kossakowski, R., Lamanna, G., Lenain, J. -P., Lohse, T., Lu, C. -C., Marandon, V., Marcowith, A., Masbou, J., Maurin, D., McComb, T. J. L., Medina, M. C., Mehault, J., Moderski, R., Moulin, E., Naumann-Godo, M., de Naurois, M., Nedbal, D., Nekrassov, D., Nguyen, N., Nicholas, B., Niemiec, J., Nolan, S. J., Ohm, S., Olive, J-F., Wilhelmi, E. de Ona, Opitz, B., Orford, K. J., Ostrowski, M., Panter, M., Arribas, M. Paz, Pedaletti, G., Pelletier, G., Petrucci, P. -O., Pita, S., Puehlhofer, G., Punch, M., Quirrenbach, A., Raubenheimer, B. C., Raue, M., Rayner, S. M., Reimer, O., Renaud, M., Reyes, R. de los, Rieger, F., Ripken, J., Rob, L., Rosier-Lees, S., Rowell, G., Rudak, B., Rulten, C. B., Ruppel, J., Ryde, F., Sahakian, V., Santangelo, A., Schlickeiser, R., Schoeck, F. M., Schoenwald, A., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sushch, I., Sikora, M., Skilton, J. L., Sol, H., Stawarz, L., Steenkamp, R., Stegmann, C., Stinzing, F., Superina, G., Szostek, A., Tam, P. H., Tavernet, J. -P., Terrier, R., Tibolla, O., Tluczykont, M., Valerius, K., van Eldik, C., Vasileiadis, G., Venter, C., Venter, L., Vialle, J. P., Viana, A., Vincent, P., Vivier, M., Voelk, H. J., Volpe, F., Vorobiov, S., Wagner, S. J., Ward, M., Zdziarski, A. A., Zech, A., and Zechlin, H. -S.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Observations of very high energy gamma-rays from blazars provide information about acceleration mechanisms occurring in their innermost regions. Studies of variability in these objects allow a better understanding of the mechanisms at play. To investigate the spectral and temporal variability of VHE (>100 GeV) gamma-rays of the well-known high-frequency-peaked BL Lac object PKS 2155-304 with the H.E.S.S. imaging atmospheric Cherenkov telescopes over a wide range of flux states. Data collected from 2005 to 2007 are analyzed. Spectra are derived on time scales ranging from 3 years to 4 minutes. Light curve variability is studied through doubling timescales and structure functions, and is compared with red noise process simulations. The source is found to be in a low state from 2005 to 2007, except for a set of exceptional flares which occurred in July 2006. The quiescent state of the source is characterized by an associated mean flux level of 4.32 +/-0.09 x 10^-11 cm^-2 s^-1 above 200 GeV, or approximately 15% of the Crab Nebula, and a power law photon index of 3.53 +/-0.06. During the flares of July 2006, doubling timescales of ~2 min are found. The spectral index variation is examined over two orders of magnitude in flux, yielding different behaviour at low and high fluxes,which is a new phenomenon in VHE gamma-ray emitting blazars. The variability amplitude characterized by the fractional r.m.s. is strongly energy-dependent and is proportional to E^(0.19 +/- 0.01). The light curve r.m.s. correlates with the flux. This is the signature of a multiplicative process which can be accounted for as a red noise with a Fourier index of ~2. This unique data set shows evidence for a low level gamma-ray emission state from PKS 2155-304, which possibly has a different origin than the outbursts. The discovery of the light curve lognormal behaviour might be an indicator .., Comment: 17 pages, 13 figures, Accepted for publication to Astronomy & Astrophysics
Published: 2010
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2. TCAD Simulation of Single Event Effects on Electronic Devices

Author: Buhler, R. T., primary, Novo, C., additional, Perin, A. L., additional, Galeti, M., additional, Pereira, C. F., additional, Guazzelli, M. A., additional, and Giacomini, R. C., additional
Published: 2022
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3. Fast variability of tera-electron volt [gamma] rays from the radio galaxy M87

Author: Aharonian, F., Akhperjanian, A.G., Bazer-Bachi, A.R., Beilicke, M., Benbow, W., Berge, D., Bernlohr, K., Boisson, C., Bolz, O., Borrel, V., Braun, I., Brown, A.M., Buhler, R., Busching, I., Carrigan, S., Chadwick, P.M., Chounet, L.-M., Coignet, G., Cornils, R., Costamante, L., Degrange, B., Dickinson, H.J., Djannati-Atai, A., Drury, L. O'C., Dubus, G., Egberts, K., Emmanoulopoulos, D., Espigat, P., Feinstein, F., Ferrero, E., Fiasson, A., Fontaine, G., Funk, Seb., Funk, S., Fussling, M., Gallant, Y.A., Giebels, B., Glicenstein, J.F., Goret, P., Hadjichristidis, C., Hauser, D., Hauser, M., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J.A., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., de Jager, O.C., Kendziorra, E., Kerschhaggl, M., Khelifi, B., Komin, Nu., Konopelko, A., Kosack, K., Lamanna, G., Latham, I.J., Le Gallou, R., Lemiere, A., Lemoine-Goumard, M., Lenain, J.-P., Lohse, T., Martin, J.M., Martineau-Huynh, O., Marcowith, A., Masterson, C., Maurin, G., McComb, T.J.L., Moulin, E., de Naurois, M., Nedbal, D., Nolan, S.J., Noutsos, A., Orford, K.J., Osborne, J.L., Ouchrif, M., Panter, M., Pelletier G., Pita, S., Puhlhofer, G., Punch, M., Ranchon, S., Raubenheimer, B.C., Raue, M., Rayner, S.M., Reimer, A., Ripken, J., Rob, L., Rolland, L., Rosier-Lees, S., Rowell, G., Sahakian, V., Santangelo, A., Sauge, L., Schlenker, S., Schlickeiser, R., Schroder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sol, H., Spangler, D., Spanier, F., Steenkamp, R., Stegmann, C., Superina, G., Tam, P.H., Tavernet, J.-P., Terrier, R., Tluczykont, M., van Eldik, C., Vasileiadis, G., Venter, C., Vialle, J.P., Vincent, P., Volk, H.J., Wagner, S.J., and Ward, M.
Subjects: Gamma rays -- Research, Gamma rays -- Analysis, Radiation -- Research, Radiation -- Analysis
Published: 2006

4. Quantification of central motor conduction deficits in multiple sclerosis patients before and after treatment of acute exacerbation by methylprednisolone

Author: Humm, A.M., Z'Graggen, W.J., Buhler, R., Magistris, M.R., and Rosler, K.M.
Subjects: Methylprednisolone -- Research, Multiple sclerosis -- Drug therapy, Multiple sclerosis -- Development and progression, Neural conduction -- Physiological aspects, Neural conduction -- Analysis, Health, Psychology and mental health
Published: 2006

5. Molecular cloning and characterization of a cDNA for the β subunit of human alcohol dehydrogenase

Author: Duester, G, Hatfield, GW, and Buhler, R
Abstract: Human alcohol dehydrogenase (ADH) is encoded by at least five genes that fall into three classes. The class I ADH genes encode the three closely related α, β, and γ polypeptides. Molecular genetic analysis of class I ADH genes has been initiated by isolating a cDNA clone from a human adult liver cDNA library. A synthetic oligonucleotide mixture encoding a portion of the β subunit of ADH was used as an in situ hybridization probe for the cDNA library. One positively hybridizing clone, pADH12, which contained an 1100-base-pair cDNA insert, was subjected to DNA sequence analysis. The sequence indicated that the cDNA encoded information for the carboxyl-terminal 91 amino acids of a class I ADH and a 3' untranslated region of 593 nucleotides. Comparisons with the carboxyl terminus of the human ADH β subunit indicated that the cDNA encoded the β polypeptide. This probe may facilitate genetic studies of various human alcohol-related syndromes, as well as enable basic molecular studies on human ADH gene expression.
Published: 1984

6. Prevention of hyperacute rejection by removal of antibodies to HLA immediately before renal transplantation

Author: Higgins, R.M., Bevan, D.J., Carey, B.S., Lea, C.K., Fallon, M., Buhler, R., Vaughan, R.W., O'Donnell, P.J., Snowden, S.A., Bewick, M., and Hendry, B.M.
Subjects: Kidneys -- Transplantation, Immunoadsorption -- Evaluation, MHC antibodies -- Physiological aspects
Published: 1996

7. Search for collectivity with azimuthal J/psi-hadron correlations in high multiplicity p-Pb collisions at ,root s(NN)=5.02 and 8.16 TeV

Author: Acharya, S, Adamova, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Anticic, T, Antinori, F, Antonioli, R, Aphecetche, L, Appelshauser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badala, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Bara, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnafoldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Alba, JL Bazo, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, Bielcik, J, Bielcikova, J, Bilandzic, A, Biro, G, Biswas, R, Biswas, S, Blair, JT, Blau, D, Blume, C, Boca, G, Bock, F, Bogdanov, A, Boldizsar, L, Bombara, M, Bonomi, G, Bonora, M, Book, J, Borel, H, Borissov, A, Borri, M, Botta, E, Bourjau, C, Bratrud, L, Braun-Munzinger, P, Bregant, M, Broker, TA, Broz, M, Brucken, EJ, Bruna, E, Bruno, GE, Budnikov, D, Buesching, H, Bufalino, S, Buhler, R, Buncic, R, Busch, O, Buthelezi, Z, Butt, JB, Buxton, JT, Cabala, J, Caffarri, D, Caines, H, Caliva, A, Villar, E Calvo, Camerini, P, Capon, AA, Carena, F, Carena, W, Carnesecchi, F, Castellanos, J Castillo, Castro, AJ, Casula, EAR, Sanchez, C Ceballos, Chandra, S, Chang, B, Chang, W, Chapeland, S, Chartier, M, Chattopadhyay, S, Chauvin, A, Cheshkov, C, Cheynis, B, Barroso, V Chibante, Chinellato, DD, Cho, S, Chochula, P, Chojnacki, M, Choudhury, S, Chowdhury, T, Christakoglou, P, Christensen, CH, Christiansen, P, Chujo, T, Chung, SU, Cicalo, C, Cifarelli, L, Cindolo, F, Cleymans, J, Colamaria, F, Colella, D, Collu, A, Colocci, M, Concas, M, Balbastre, G Conesa, del Valle, Z Conesa, Contreras, JG, Cormier, TM, Morales, Y Corrales, Maldonado, I Cortes, Cortese, P, Cosentino, MR, Costa, F, Costanza, S, Crkovska, J, Crochet, P, Cuautle, E, Cunqueiro, L, Dahms, T, Dainese, A, Danisch, MC, Danu, A, Das, D, Das, I, Das, S, Dash, A, Dash, S, De, S, De Caro, A, de Cataldo, G, de Conti, C, de Cuveland, J, De Falco, A, De Gruttola, D, De Marco, N, De Pasquale, S, De Souza, RD, Degenhardt, HF, Deisting, A, Deloff, A, Deplano, C, Dhankher, P, Di Bari, D, Di Mauro, A, Di Nezza, P, Di Ruzza, B, Corchero, MA Diaz, Dietel, T, Dillenseger, P, Ding, Y, Divia, R, Djuvsland, O, Dobrin, A, Gimenez, D Domenicis, Donigus, B, Dordic, O, Doremalen, LVR, Dubey, AK, Dubla, A, Ducroux, L, Dudi, S, Dugga, AK, Dukhishyam, M, Dupieux, P, Ehlers, RJ, Elia, D, Endress, E, Engel, H, Epple, E, Erazmus, B, Erhardt, F, Espagnon, B, Eulisse, G, Eum, J, Evans, D, Evdokimov, S, Fabbietti, L, Faivre, J, Fantoni, A, Fasel, M, Feldkamp, L, Feliciello, A, Feofilov, G, Tellez, A Fernandez, Ferreiro, EG, Ferretti, A, Festanti, A, Feuillard, VJG, Figiel, J, Figueredo, MAS, Filchagin, S, Finogeev, D, Fionda, FM, Floris, M, Foertsch, S, Foka, P, Fokin, S, Fragiacomo, E, Francescon, A, Francisco, A, Frankenfeld, U, Fronze, GG, Fuchs, U, Furget, C, Furs, A, Girard, M Fusco, Gaardhoje, JJ, Gagliardi, M, Gago, AM, Gajdosova, K, Gallio, M, Galvan, CD, Ganoti, P, Garabatos, C, Garcia-Solis, E, Garg, K, Gargiulo, C, Gasik, P, Gauger, EF, Ducati, MB Gay, Germain, M, Ghosh, J, Ghosh, P, Ghosh, SK, Gianotti, P, Giubellino, P, Giubilato, P, Gladysz-Dziadus, E, Glassel, P, Coral, DM Gomez, Ramirez, A Gomez, Gonzalez, AS, Gonzalez, V, Gonzalez-Zamora, P, Gorbunov, S, Gorlich, L, Gotovac, S, Grabski, V, Graczykowski, LK, Graham, KL, Greiner, L, Grelli, A, Grigoras, C, Grigoriev, V, Grigoryan, A, Grigoryan, S, Gronefeld, JM, Grosa, F, Grosse-Oetringhaus, JF, Grosso, R, Guber, F, Guernane, R, Guerzoni, B, Gulbrandsen, K, Gunji, T, Gupta, A, Gupta, R, Guzman, IB, Haake, R, Hadjidakis, C, Hamagaki, H, Hamar, G, Hamon, JC, Haque, MR, Harris, JW, Harton, A, Hassan, H, Hatzifotiadou, D, Hayashi, S, Heckel, ST, Hellbar, E, Helstrup, H, Herghelegiu, A, Hernandez, EG, Corral, G Herrera, Herrmann, F, Hess, BA, Hetland, KF, Hillemanns, H, Hills, C, Hippolyte, B, Hohlweger, B, Horak, D, Hornung, S, Hosokawa, R, Hristov, P, Hughes, C, Humanic, TJ, Hussain, N, Hussain, T, Hutter, D, Hwang, DS, Buitron, SA Iga, Ilkaev, R, Inaba, M, Ippolitov, M, Islam, MS, Ivanov, M, Ivanov, V, Izucheev, V, Jacak, B, Jacazio, N, Jacobs, PM, Jadhav, MB, Jadlovska, S, Jadlovsky, J, Jaelani, S, Jahnke, C, Jakubowska, MJ, Janik, MA, Jayarathna, PHSY, Jena, C, Jercic, M, Bustamante, RT Jimenez, Jones, PG, Jusko, A, Kalinak, P, Kalweit, A, Kang, JH, Kaplin, V, Kar, S, Uysal, A Karasu, Karavichev, O, Karavicheva, T, Karayan, L, Karczmarczyk, P, Karpechev, E, Kebschull, U, Keide, R, Keijdener, DLD, Keil, M, Ketzer, B, Khabanova, Z, Khan, P, Khan, SA, Khanzadeev, A, Kharlov, Y, Khatun, A, Khuntia, A, Kielbowicz, MM, Kileng, B, Kim, B, Kim, D, Kim, DJ, Kim, H, Kim, JS, Kim, J, Kim, M, Kim, S, Kim, T, Kirsch, S, Kisel, I, Kiselev, S, Kisiel, A, Kiss, G, Klay, JL, Klein, C, Klein, J, Klein-Bosing, C, Klewin, S, Kluge, A, Knichel, ML, Knospe, AG, Kobdaj, C, Kofarago, M, Kohler, MK, Kollegger, T, Kondratiev, V, Kondratyeva, N, Kondratyuk, E, Konevskikh, A, Konyushikhin, M, Kopcik, M, Kour, M, Kouzinopoulos, C, Kovalenko, O, Kovalenko, V, Kowalski, M, Meethaleveedu, G Koyithatta, Kralik, I, Kravcakova, A, Kreis, L, Krivda, M, Krizek, F, Kryshen, E, Krzewicki, M, Kubera, AM, Kucera, V, Kuhn, C, Kuijer, PG, Kumar, A, Kumar, J, Kumar, L, Kumar, S, Kundu, S, Kurashvili, P, Kurepin, A, Kurepin, AB, Kuryakin, A, Kushpi, S, Kweon, MJ, Kwon, Y, La Pointe, SL, La Rocca, P, Fernandes, C Lagana, Lai, YS, Lakomov, I, Langoy, R, Lapidus, K, Lara, C, Lardeux, A, Lattuca, A, Laudi, E, Lavicka, R, Lea, R, Leardini, L, Lee, S, Lehas, F, Lehner, S, Lehrbach, J, Lemmon, RC, Leogrande, E, Monzon, I Leon, Levai, P, Li, X, Lien, J, Lietava, R, Lim, B, Lindal, S, Lindenstruth, V, Lindsay, SW, Lippmann, C, Lisa, MA, Litichevskyi, V, Llope, WJ, Lodato, DF, Loenne, PI, Loginov, V, Loizides, C, Loncar, P, Lopez, X, Torres, E Lopez, Lowe, A, Luettig, P, Luhder, JR, Lunardon, M, Luparello, G, Lupi, M, Lutz, TH, Maevskaya, A, Mager, M, Mahmood, SM, Maire, A, Majka, RD, Malaev, M, Malinina, L, Mal'Kevich, D, Malzacher, P, Mamonov, A, Manko, V, Manso, F, Manzari, V, Mao, Y, Marchisone, M, Mares, J, Margagliotti, GV, Margotti, A, Margutti, J, Marin, A, Markert, C, Marquard, M, Martin, NA, Martinengo, P, Martinez, JAL, Martinez, MI, Garcia, G Martinez, Pedreira, M Martinez, Masciocchi, S, Masera, M, Masoni, A, Masson, E, Mastroserio, A, Mathis, AM, Matuoka, PFT, Matyja, A, Mayer, C, Mazer, J, Mazzilli, M, Mazzoni, MA, Meddi, F, Melikyan, Y, Menchaca-Rocha, A, Meninno, E, Perez, J Mercado, Meres, M, Mhlanga, S, Miake, Y, Mieskolainen, MM, Mihaylov, DL, Mikhaylov, K, Mischke, A, Mishra, AN, Miskowiec, D, Mitra, J, Mitu, CM, Mohammadi, N, Mohanty, AP, Mohanty, B, Khan, M Mohisin, Montes, E, De Godoy, DA Moreira, Moreno, LAP, Moretto, S, Morreale, A, Morsch, A, Muccifora, V, Mudnic, E, Muhlheim, D, Muhuri, S, Mulligan, JD, Munhoz, MG, Munning, K, Munzer, RH, Murakami, H, Murray, S, Musa, L, Musinsky, J, Myers, CJ, Myrcha, JW, Nag, D, Naik, B, Nair, R, Nandi, BK, Nania, R, Nappi, E, Narayan, A, Naru, MU, da Luz, H Natal, Nattrass, C, Navarro, SR, Nayak, K, Nayak, R, Nayak, TK, Nazarenko, S, De Oliveira, RA Negrao, Nellen, L, Nesbo, SV, Ng, F, Nicassio, M, Niculescu, M, Niedziela, J, Nielsen, BS, Nikolaev, S, Nikulin, S, Nikulin, V, Noferini, F, Nomokonov, P, Nooren, G, Noris, JCC, Norman, J, Nyanin, A, Nystrand, J, Oeschler, H, Oh, H, Ohlson, A, Okubo, T, Olah, L, Oleniacz, J, Da Silva, AC Oliveira, Oliver, MH, Onderwaater, J, Oppedisano, C, Orava, R, Oravec, M, Velasquez, A Ortiz, Oskarsson, A, Otwinowski, J, Oyama, K, Pachmayer, Y, Pacik, V, Pagano, D, Paic, G, Palni, P, Pan, J, Pandey, AK, Panebianco, S, Papikyan, V, Pareek, P, Park, J, Parmar, S, Passfeld, A, Pathak, SP, Patra, RN, Paul, B, Pei, H, Peitzmann, T, Peng, X, Pereira, LG, Da Costa, H Pereira, Peresunko, D, Lezama, E Perez, Peskov, V, Pestov, Y, Petracek, V, Petrov, V, Petrovici, M, Petta, C, Pezzi, RP, Piano, S, Pikna, M, Pillot, P, Pimentel, LODL, Pinazza, O, Pinsky, L, Piyarathna, DB, Ploskon, M, Planinic, M, Pliquett, F, Pluta, J, Pochybova, S, Podesta-Lerma, PLM, Poghosyan, MG, Polichtchouk, B, Poljak, N, Poonsawat, W, Pop, A, Poppenborg, H, Porteboeuf-Houssais, S, Pozdniakov, V, Prasad, SK, Preghenella, R, Prino, F, Pruneau, CA, Pshenichnov, I, Puccio, M, Punin, V, Putschke, J, Raha, S, Rajput, S, Rak, J, Rakotozafindrabe, A, Ramello, L, Rami, F, Rana, DB, Raniwala, R, Raniwala, S, Rasanen, SS, Rascanu, BT, Rathee, D, Ratza, V, Ravasenga, I, Read, KF, Redlich, K, Rehman, A, Reichelt, P, Reidt, F, Ren, X, Renfordt, R, Reshetin, A, Reygers, K, Riabov, V, Richert, T, Richter, M, Riedler, P, Riegler, W, Riggi, F, Ristea, C, Cahuantzi, M Rodriguez, Roed, K, Rogochaya, E, Rohr, D, Rohrich, D, Rokita, PS, Ronchetti, F, Rosas, ED, Rosnet, P, Rossi, A, Rotondi, A, Roukoutakis, F, Roy, C, Roy, P, Montero, AJ Rubio, Rueda, OV, Rui, R, Rumyantsev, B, Rustamov, A, Ryabinkin, E, Ryabov, Y, Rybicki, A, Saarinen, S, Sadhu, S, Sadovsky, S, Safarik, K, Saha, SK, Sahlmuller, B, Sahoo, B, Sahoo, P, Sahoo, R, Sahoo, S, Sahu, PK, Saini, J, Sakai, S, Saleh, MA, Salzwedel, J, Sambyal, S, Samsonov, V, Sandoval, A, Sarkar, A, Sarkar, D, Sarkar, N, Sarma, P, Sas, MHP, Scapparone, E, Scarlassara, F, Schaefer, B, Scheid, HS, Schiaua, C, Schicker, R, Schmidt, C, Schmidt, HR, Schmidt, MO, Schmidt, M, Schmidt, NV, Schukraft, J, Schutz, Y, 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SC, Wessels, JP, Westerhoff, U, Whitehead, AM, Wiechula, J, Wikne, J, Wilk, G, Wilkinson, J, Willems, GA, Williams, MCS, Willsher, E, Windelband, B, Witt, WE, Xu, R, Yalcin, S, Yamakawa, K, Yang, P, Yano, S, Yin, Z, Yokoyama, H, Yoo, I-K, Yoon, JH, Yun, E, Yurchenko, V, Zaccolo, V, Zaman, A, Zampolli, C, Zanoli, HJC, Zardoshti, N, Zarochentsev, A, Zavada, P, Zaviyalov, N, Zbroszczyk, H, Zhalov, M, Zhang, H, Zhang, X, Zhang, Y, Zhang, C, Zhang, Z, Zhao, C, Zhigareva, N, Zhou, D, Zhou, Y, Zhou, Z, Zhu, H, Zhu, J, Zhu, Y, Zichichi, A, Zimmermann, MB, Zinovjev, G, Zmeskal, J, Zou, S, and Collaboration, Alice
Subjects: COLLISIONS, ROOT-S(NN)=5.02 TEV, PROTON-PROTON, PLUS PB, HEAVY-ION COLLISIONS, ANGULAR-CORRELATIONS, CHARMONIUM PRODUCTION, 2-PARTICLE CORRELATIONS, 2-PARTICLE, CORRELATIONS, LONG-RANGE, NUCLEUS, LHC, NUCLEUS COLLISIONS
Abstract: We present a measurement of azimuthal correlations between inclusive J/psi and charged hadrons in p-Pb collisions recorded with the ALICE detector at the CERN LHC. The J/psi are reconstructed at forward (p-going, 2.03 < y < 3.53) and backward (Pb-going, -4.46 < y < -2.96) rapidity via their mu(+)mu(-) decay channel, while the charged hadrons are reconstructed at mid-rapidity (vertical bar eta vertical bar < 1.8). The correlations are expressed in terms of associated charged-hadron yields per W . trigger. A rapidity gap of at least 1.5 units is required between the trigger J/psi and the associated charged hadrons. Possible correlations due to collective effects are assessed by subtracting the associated per-trigger yields in the low-multiplicity collisions from those in the high-multiplicity collisions. After the subtraction, we observe a strong indication of remaining symmetric structures at Delta phi approximate to 0 and Delta phi approximate to pi), similar to those previously found in two-particle correlations at middle and forward rapidity. The corresponding second-order Fourier coefficient (v(2) ) in the transverse momentum interval between 3 and 6 GeV/c is found to be positive with a significance of about 5 sigma. The obtained results are similar to the J/psi v(2) coefficients measured in Pb-Pb collisions at root s(NN) = 5.02 TeV, suggesting a common mechanism at the origin of the J/psi v(2) . (C) 2018 The Author. Published by Elsevier B.V.
Published: 2018

8. Longitudinal asymmetry and its effect on pseudorapidity distributions in Pb-Pb collisions at root s(NN)=2.76 TeV

Author: ACHARYA, S, ADAM, J, ADAMOVA, D, ADOLFSSON, J, AGGARWAL, MM, RINELLA, GA, AGNELLO, M, AGRAWAL, N, AHAMMED, Z, AHMAD, N, AHN, SU, AIOLA, S, AKINDINOV, A, AL-TURANY, M, ALAM, SN, ALBA, JLB, ALBUQUERQUE, DSD, ALEKSANDROV, D, ALESSANDRO, B, MOLINA, RA, ALICI, A, ALKIN, A, ALME, J, ALT, T, ALTENKAMPER, L, ALTSYBEEV, I, PRADO, CAG, ANDREI, C, ANDREOU, D, ANDREWS, HA, ANDRONIC, A, ANGUELOV, V, ANSON, C, ANTICIC, T, ANTINORI, F, ANTONIOLI, R, ANWAR, R, APHECETCHE, L, APPELSHAUSER, H, ARCELLI, S, ARNALDI, R, ARNOLD, OW, ARSENE, IC, ARSLANDOK, M, AUDURIER, B, AUGUSTINUS, A, AVERBECK, R, AZMI, MD, BADALA, A, BAEK, YW, BAGNASCO, S, BAILHACHE, R, BALA, R, BALDISSERI, A, BALL, M, BARAL, RC, BARBANO, AM, BARBERA, R, BARILE, F, BARIOGLIO, L, BARNAFOLDI, GG, BARNBY, LS, BARRET, V, BARTALINI, R, BARTH, K, BARTSCH, E, BASILE, M, BASTIDNI, N, BASU, S, BATIGNE, G, BATYUNYA, B, BATZING, R, BEARDEN, IG, BECK, H, BEDDA, C, BEHERA, NK, BELIKOV, I, BELLINI, F, MARTINEZ, HB, BELLWIED, R, BELTRAN, LGE, BELYAEV, V, BENCEDI, G, BEOLE, S, BERCUCI, A, BERDNIKOV, Y, BERENYI, D, BERTENS, RA, BERZANO, D, BETEV, L, BHASIN, A, BHAT, IR, BHATI, AK, BHATTACHARJEE, B, BHOM, J, BIANCHI, A, BIANCHI, L, BIANCHI, N, BIANCHIN, C, BIELCIK, J, BIELCIKOVA, J, BILANDZIC, A, BIRO, G, BISWAS, R, BISWAS, S, BLAIR, JT, BLAU, D, BLUME, C, BOCA, G, BOCK, F, BOGDANOV, A, BOLDIZSAR, L, BOMBARA, M, BONOMI, G, BONORA, M, BOOK, J, BORE, H, BORISSOV, A, BORRI, M, BOTTA, E, BOURJAU, C, BRATRUD, L, BRAUN-MUNZINGER, R, BREGANT, M, BROKER, TA, BROZ, M, BRUCKEN, EJ, BRUNA, E, BRUNO, GE, BUDNIKOV, D, BUESCHING, H, BUFALINO, S, BUHLER, R, BUNCIC, R, BUSCH, O, BUTHELEZI, Z, BUTT, JB, BUXTON, JT, CABALA, J, CAFFARRI, D, CAINES, H, CALIVA, A, VILLAR, E, CAMERINI, R, CAPON, AA, CARENA, F, CARENA, W, CARNESECCHI, F, CASTELLANOS, JC, CASTRO, AJ, CASULA, EAR, SANCHEZ, C, CERELLO, R, CHANDRA, S, CHANG, B, CHAPELAND, S, CHARTIER, M, CHATTOPADHYAY, S, CHAUVIN, A, CHESHKOV, C, CHEYNIS, B, BARROSO, VC, CHINELLATO, DD, CHO, S, 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RENFORDT, R, REOLON, AR, RESHETIN, A, REYGERS, K, RIABOV, V, RICCI, RA, RICHERT, T, RICHTER, M, RIEDLER, R, RIEGLER, W, RIGGI, F, RISTEA, C, CAHUANTZI, MR, ROED, K, ROGOCHAYA, E, ROHR, D, ROHRICH, D, ROKITA, R, RONCHETTI, F, ROSAS, ED, ROSNET, R, ROSSI, A, ROTONDI, A, ROUKOUTAKIS, F, ROY, A, ROY, C, ROY, R, RUEDA, OV, RUI, R, RUMYANTSEV, B, RUSTAMOV, A, RYABINKIN, E, RYABOV, Y, RYBICKI, A, SAARINEN, S, SADHU, S, SADOVSKY, S, SAFARIK, K, SAHA, SK, SAHLMULLER, B, SAHOO, B, SAHOO, R, SAHOO, S, SAHU, PK, SAINI, J, SAKAI, S, SALEH, MA, SALZWEDE, J, SAMBYALM, S, SAMSONOV, V, SANDOVAL, A, SARKAR, D, SARKAR, N, SARMA, R, SAS, MHP, SCAPPARONE, E, SCARLASSARA, F, SCHAEFER, B, SCHARENBERG, RP, SCHEID, HS, SCHIAUA, C, SCHICKER, R, SCHMIDT, C, SCHMIDT, HR, SCHMIDT, MO, SCHMIDT, M, SCHMIDT, NV, SCHUKRAFT, J, SCHUTZ, Y, SCHWARZ, K, SCHWEDA, K, SCIOLI, G, SCOMPARIN, E, SEFCIK, M, SEGER, JE, SEKIGUCHI, Y, SEKIHATA, D, SELYUZHENKOV, I, SENOSI, K, SENYUKOV, S, SERRADILLA, E, SETT, R, SEVCENCO, A, SHABANOV, A, SHABETAI, A, SHAHOYAN, R, SHAIKH, W, SHANGARAEV, A, SHARMA, A, SHARMA, M, SHARMA, N, SHEIKH, AI, SHIGAKI, K, SHOU, Q, SHTEJER, K, SIBIRIAK, Y, SIDDHANTA, S, SIELEWICZ, KM, SIEMIARCZUK, T, SILAEVA, S, SILVERMYR, D, SILVESTRE, C, SIMATOVIC, G, SIMONETTI, G, SINGARAJU, R, SINGH, R, SINGHAL, V, SINHA, T, SITAR, B, SITTA, M, SKAALI, TB, SLUPECKI, M, SMIRNOV, N, SNELLINGS, RJM, SNELLMAN, TW, SONG, J, SONG, M, SORAME, F, SORENSEN, S, SOZZI, F, SPIRITI, E, SPUTOWSKA, I, SRIVASTAVA, BK, STACHEL, J, STAN, I, STANKUS, P, STENLUND, E, STOCCO, D, STORETVEDT, MM, STRMEN, R, SUAIDE, AAP, SUGITATE, T, SUIRE, C, SULEYMANOV, M, STLIJIC, M, SULTANOV, R, SUMBERA, M, SUMOWIDAGDO, S, SUZUKI, K, SWAIN, S, SZABO, A, SZARKA, I, TABASSAM, U, TAKAHASHI, J, TAMBAVE, GJ, TANAKA, N, TARHINI, M, TARIQ, M, TARZILA, MG, TAURO, A, MUNOZ, GT, TELESCA, A, TERASAKI, K, TERREVOLI, C, TEYSSIER, B, THAKUR, D, THAKUR, S, THOMAS, D, THORESEN, F, TIEULENT, R, TIKHONOV, A, TIMMINS, AR, TOIA, A, TORRES, SR, TRIPATHY, S, TROGOLO, S, TROMBETTA, G, TROPP, L, TRUBNIKOV, V, TRZASKA, WH, TRZECIAK, BA, TSUJI, T, TUMKIN, A, TURRISI, R, TVETER, TS, ULLALAND, K, UMAKA, EN, URAS, A, USAI, GL, UTROBICIC, A, VALA, M, MAARE, JJD, HOORNE, JW, LEEUWEN, M, VANAT, T, VYVRE, RV, VARGA, D, VARGAS, A, VARGYAS, M, VARMA, R, VASILEIOU, M, VASILIEV, A, VAUTHIER, A, DOCE, OV, VECHERNIN, V, VEEN, AM, VELURE, A, VERCELLIN, E, LIMON, SV, VERNET, R, VERTESI, R, VICKOVIC, L, VIGOLO, S, VIINIKAINEN, J, VILAKAZI, Z, BAILLIE, OV, TELLO, AV, VINOGRADOV, A, VINOGRADOV, L, VIRGILI, T, VISLAVICIUS, V, VODOPYANOV, A, VOLKL, MA, VOLOSHIN, K, VOLOSHIN, SA, VOLPE, G, HALLER, B, VOROBYEV, I, VOSCEK, D, VRANIC, D, VRLAKOVA, J, WAGNER, B, WANG, H, WANG, M, WATANABE, D, WATANABE, Y, WEBER, M, WEBER, SG, WEISER, DF, WENZEL, SC, WESSELS, JP, WESTERHOFF, U, WHITEHEAD, AM, WIECHULA, J, WIKNE, J, WILK, G, WILKINSON, J, WILLEMS, GA, WILLIAMS, MCS, WILLSHER, E, WINDELBAND, B, WITT, WE, YALCIN, S, YAMAKAWA, K, YANG, R, YANO, S, YIN, Z, YOKOYAMA, H, YOO, IK, YOON, JH, YURCHENKO, V, ZACCOLO, V, ZAMAN, A, ZAMPOLLI, C, ZANOLI, HJC, ZARDOSHTI, N, ZAROCHENTSEV, A, ZAVADA, R, ZAVIYALOV, N, ZBROSZCZYK, H, ZHALOV, M, ZHANG, H, ZHANG, X, ZHANG, Y, and ZHANG, C
Subjects: DENSITY, CENTRALITY DEPENDENCE
Abstract: First results on the longitudinal asymmetry and its effect on the pseudorapidity distributions in Pb-Pb collisions at root s(NN) = 2.76 TeV at the Large Hadron Collider are obtained with the ALICE detector. The longitudinal asymmetry arises because of an unequal number of participating nucleons from the two colliding nuclei, and is estimated for each event by measuring the energy in the forward neutron-Zero-Degree-Calorimeters (ZNs). The effect of the longitudinal asymmetry is measured on the pseudorapidity distributions of charged particles in the regions vertical bar eta vertical bar < 0.9, 2.8 < eta < 5.1 and -3.7 < eta < -1.7 by taking the ratio of the pseudorapidity distributions from events corresponding to different regions of asymmetry. The coefficients of a polynomial fit to the ratio characterise the effect of the asymmetry. A Monte Carlo simulation using a Glauber model for the colliding nuclei is tuned to reproduce the spectrum in the ZNs and provides a relation between the measurable longitudinal asymmetry and the shift in the rapidity (y(0)) of the participant zone formed by the unequal number of participating nucleons. The dependence of the coefficient of the linear term in the polynomial expansion, c(1), on the mean value of y(0) is investigated. (C) 2018 The Author(s). Published by Elsevier B.V.
Published: 2018

9. Analysis of SiC MOSFETs Basic Parameters Aiming Application in Power Drivers for Electric Vehicles

Author: Feitosa, F. C., primary, Pereira, W., additional, Buhler, R. T., additional, and Giacomini, R. C., additional
Published: 2019
Full Text: View/download PDF

10. Wearable large-area touch sensor: Design, simulation and experimental results

Author: Pessoa, P. S., primary, Giacomini, R. C., additional, Borelli, C., additional, and Buhler, R. T., additional
Published: 2019
Full Text: View/download PDF

11. TWO CYP1A PROTEINS IN BNF-INDUCED RAINBOW TROUT LIVER: P5-30

Author: Gooneratne, R., Miranda, C. L., Henderson, M., and Buhler, R
Published: 1997

12. Experimental Lateral PIN Gated Photodiode RGB Discrimination with Multiple Incident Optical Power

Author: Buhler, R. T., primary, Montesani, G. J., additional, and Giacomini, R. C., additional
Published: 2018
Full Text: View/download PDF

13. Open model for external mechanical stress of semiconductors and MEMS

Author: Buhler, R. T., primary and Giacomini, R. C., additional
Published: 2018
Full Text: View/download PDF

14. PIN sensor array response to heavy-ion particles in bulk and SOI technologies

Author: Buhler, R. T., primary, Cansio, E. T., additional, Perin, A. L., additional, Novo, C. D., additional, Silveira, M. A. G., additional, and Giacomini, R. C., additional
Published: 2017
Full Text: View/download PDF

15. Semiconductor bending setup for electrical characterization of mechanical stress

Author: Buhler, R. T., primary, Perin, A. L., additional, and Giacomini, R. C., additional
Published: 2017
Full Text: View/download PDF

16. Analysis of heavy-ion particles striking regions inside and between PIN photodetectors

Author: Buhler, R. T., primary, Perinm, A. L., additional, Novo, C. D., additional, Silveira, M. A. G., additional, and Giacomini, R. C., additional
Published: 2016
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17. Radio imaging of the very-high-energy gamma-ray emission region in the central engine of a radio galaxy

Author: Veritas, Collaboration, Monitoring Team, Vlba Ghz M., Collaboration, H. E. S. S., Magic, Collaboration, Acciari, V. A., Aliu, E., Arlen, T., Bautista, M., Beilicke, M., Benbow, W., Bradbury, S. M., Buckley, J. H., Bugaev, V., Butt, Y., Byrum, K., Cannon, A., Celik, O., Cesarini, A., Chow, Y. C., Ciupik, L., Cogan, P., Cui, W., Dickherber, R., Fegan, S. J., Finley, J. P., Fortin, P., Fortson, L., Furniss, A., Gall, D., Gillanders, G. H., Grube, J., Guenette, R., Gyuk, G., Hanna, D., Holder, J., Horan, D., Hui, C. M., Humensky, T. B., Imran, A., Kaaret, P., Karlsson, N., Kieda, D., Kildea, J., Konopelko, A., Krawczynski, H., Krennrich, F., Lang, M. J., Lebohec, S., Maier, G., Mccann, A., Mccutcheon, M., Millis, J., Moriarty, P., Ong, R. A., Otte, A. N., Pandel, D., Perkins, J. S., Petry, D., Pohl, M., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Roache, E., Rose, H. J., Schroedter, M., Sembroski, G. H., Smith, A. W., Swordy, S. P., Theiling, M., Toner, J. A., Varlotta, A., Vincent, S., Wakely, S. P., Ward, J. E., Weekes, T. C., Weinstein, A., Williams, D. A., Wissel, S., Wood, M., Walker, R. C., Davies, F., Hardee, P. E., Junor, W., Ly, C., Aharonian, F., Akhperjanian, A. G., Anton, G., Barres Almeida, U., Bazer-Bachi, A. R., Becherini, Y., Behera, B., Bernlohr, K., Bochow, A., Boisson, C., Bolmont, J., Borrel, V., Brucker, J., Brun, F., Brun, P., Buhler, R., Bulik, T., Busching, I., Boutelier, T., Chadwick, P. M., Charbonnier, A., Chaves, R. C. G., Cheesebrough, A., Chounet, L-M, Clapson, A. C., Coignet, G., Dalton, M., Daniel, M. K., Davids, I. D., Degrange, B., Deil, C., Dickinson, H. J., Djannati-Atai, A., Domainko, W., Drury, L. O. C., Dubois, F., Dubus, G., Dyks, J., Dyrda, M., Egberts, K., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Fiasson, A., Forster, A., Fontaine, G., Fussling, M., Gabici, S., Gallant, Y. A., Gerard, L., Gerbig, D., Giebels, B., Glicenstein, J. F., Gluck, B., Goret, P., Gohring, D., Hauser, D., Hauser, M., Heinz, S., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J. A., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., Jager, O. C., Jahn, C., Jung, I., Katarzynski, K., Katz, U., Kaufmann, S., Kendziorra, E., Kerschhaggl, M., Khangulyan, D., Khelifi, B., Keogh, D., Kluzniak, W., Kneiske, T., Komin, Nu, Kosack, K., Lamanna, G., Lenain, J-P, Lohse, T., Marandon, V., Martin, J. M., Martineau-Huynh, O., Marcowith, A., Maurin, D., Mccomb, T. J. L., Medina, M. C., Moderski, R., Moulin, E., Naumann-Godo, M., Naurois, M., Nedbal, D., Nekrassov, D., Nicholas, B., Niemiec, J., Nolan, S. J., Ohm, S., Olive, J-F, Ona Wilhelmi, E., Orford, K. J., Ostrowski, M., Panter, M., Paz Arribas, M., Pedaletti, G., Pelletier, G., Petrucci, P-O, Pita, S., Puhlhofer, G., Punch, M., Quirrenbach, A., Raubenheimer, B. C., Raue, M., Rayner, S. M., Renaud, M., Rieger, F., Ripken, J., Rob, L., Rosier-Lees, S., Rowell, G., Rudak, B., Rulten, C. B., Ruppel, J., Sahakian, V., Santangelo, A., Schlickeiser, R., Schock, F. M., Schroder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sikora, M., Skilton, J. L., Sol, H., Spangler, D., Stawarz, L., Steenkamp, R., Stegmann, C., Stinzing, F., Superina, G., Szostek, A., Tam, P. H., Tavernet, J-P, Terrier, R., Tibolla, O., Tluczykont, M., Christopher van Eldik, Vasileiadis, G., Venter, C., Venter, L., Vialle, J. P., Vincent, P., Vivier, M., Volk, H. J., Volpe, F., Wagner, S. J., Ward, M., Zdziarski, A. A., Zech, A., Anderhub, H., Antonelli, L. A., Antoranz, P., Backes, M., Baixeras, C., Balestra, S., Barrio, J. A., Bastieri, D., Becerra Gonzalez, J., Becker, J. K., Bednarek, W., Berger, K., Bernardini, E., Biland, A., Bock, R. K., Bonnoli, G., Bordas, P., Borla Tridon, D., Bosch-Ramon, V., Bose, D., Braun, I., Bretz, T., Britvitch, I., Camara, M., Carmona, E., Commichau, S., Contreras, J. L., Cortina, J., Costado, M. T., Covino, S., Curtef, V., Dazzi, F., Angelis, A., Cea Del Pozo, E., Delgado Mendez, C., Los Reyes, R., Lotto, B., Maria, M., Sabata, F., Dominguez, A., Dorner, D., Doro, M., Elsaesser, D., Errando, M., Ferenc, D., Fernandez, E., Firpo, R., Fonseca, M. V., Font, L., Galante, N., Garcia Lopez, R. J., Garczarczyk, M., Gaug, M., Goebel, F., Hadasch, D., Hayashida, M., Herrero, A., Hildebrand, D., Hohne-Monch, D., Hose, J., Hsu, C. C., Jogler, T., Kranich, D., La Barbera, A., Laille, A., Leonardo, E., Lindfors, E., Lombardi, S., Longo, F., Lopez, M., Lorenz, E., Majumdar, P., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Mariotti, M., Martinez, M., Mazin, D., Meucci, M., Miranda, J. M., Mirzoyan, R., Miyamoto, H., Moldon, J., Moles, M., Moralejo, A., Nieto, D., Nilsson, K., Ninkovic, J., Oya, I., Paoletti, R., Paredes, J. M., Pasanen, M., Pascoli, D., Pauss, F., Pegna, R. G., Perez-Torres, M. A., Persic, M., Peruzzo, L., Prada, F., Prandini, E., Puchades, N., Reichardt, I., Rhode, W., Ribo, M., Rico, J., Rissi, M., Robert, A., Rugamer, S., Saggion, A., Saito, T. Y., Salvati, M., Sanchez-Conde, M., Satalecka, K., Scalzotto, V., Scapin, V., Schweizer, T., Shayduk, M., Shore, S. N., Sidro, N., Sierpowska-Bartosik, A., Sillanpaa, A., Sitarek, J., Sobczynska, D., Spanier, F., Stamerra, A., Stark, L. S., Takalo, L., Tavecchio, F., Temnikov, P., Tescaro, D., Teshima, M., Torres, D. F., Turini, N., Vankov, H., Wagner, R. M., Zabalza, V., Zandanel, F., Zanin, R., Zapatero, J., Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, AstroParticule et Cosmologie (APC (UMR_7164)), 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), 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)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-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), APC - Astrophysique des Hautes Energies (APC - AHE), 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), HESS, Universitat de Barcelona, Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-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), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), 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), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO)-AstroParticule et Cosmologie (APC (UMR_7164)), 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, Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -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), 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), V. A., Acciari, E., Aliu, T., Arlen, M., Bautista, M., Beilicke, W., Benbow, S. M., Bradbury, J. H., Buckley, V., Bugaev, Y., Butt, K., Byrum, A., Cannon, O., Celik, A., Cesarini, Y. C., Chow, L., Ciupik, P., Cogan, W., Cui, R., Dickherber, S. J., Fegan, J. P., Finley, P., Fortin, L., Fortson, A., Furni, D., Gall, G. H., Gillander, J., Grube, R., Guenette, G., Gyuk, D., Hanna, J., Holder, D., Horan, C. M., Hui, T. B., Humensky, A., Imran, P., Kaaret, N., Karlsson, D., Kieda, J., Kildea, A., Konopelko, H., Krawczynski, F., Krennrich, M. J., Lang, S., Lebohec, G., Maier, A., Mccann, M., Mccutcheon, J., Milli, P., Moriarty, R. A., Ong, A. N., Otte, D., Pandel, J. S., Perkin, D., Petry, M., Pohl, J., Quinn, K., Ragan, L. C., Reye, P. T., Reynold, E., Roache, H. J., Rose, M., Schroedter, G. H., Sembroski, A. W., Smith, S. P., Swordy, M., Theiling, J. A., Toner, A., Varlotta, S., Vincent, S. P., Wakely, J. E., Ward, T. C., Weeke, A., Weinstein, D. A., William, S., Wissel, M., Wood, R. C., Walker, F., Davie, P. E., Hardee, W., Junor, C., Ly, F., Aharonian, A. G., Akhperjanian, G., Anton, U. B., de Almeida, A. R., Bazer Bachi, Y., Becherini, B., Behera, K., Bernlohr, A., Bochow, C., Boisson, J., Bolmont, V., Borrel, J., Brucker, F., Brun, P., Brun, R., Buhler, T., Bulik, I., Busching, T., Boutelier, P. M., Chadwick, A., Charbonnier, R. C. G., Chave, A., Cheesebrough, L. M., Chounet, A. C., Clapson, G., Coignet, M., Dalton, M. K., Daniel, I. D., David, B., Degrange, C., Deil, H. J., Dickinson, A., Djannati Atai, W., Domainko, L. O., Drury, F., Duboi, G., Dubu, J., Dyk, M., Dyrda, K., Egbert, D., Emmanoulopoulo, P., Espigat, C., Farnier, F., Feinstein, A., Fiasson, A., Forster, G., Fontaine, M., Fussling, S., Gabici, Y. A., Gallant, L., Gerard, D., Gerbig, B., Giebel, J. F., Glicenstein, B., Gluck, P., Goret, D., Gohring, D., Hauser, M., Hauser, S., Heinz, G., Heinzelmann, G., Henri, G., Hermann, J. A., Hinton, A., Hoffmann, W., Hofmann, M., Holleran, S., Hoppe, D., Horn, A., Jacholkowska, O. C., de Jager, C., Jahn, I., Jung, K., Katarzynski, U., Katz, S., Kaufmann, E., Kendziorra, M., Kerschhaggl, D., Khangulyan, B., Khelifi, D., Keogh, W., Kluzniak, T., Kneiske, N., Komin, K., Kosack, G., Lamanna, J. P., Lenain, T., Lohse, V., Marandon, J. M., Martin, O., Martineau Huynh, A., Marcowith, D., Maurin, T. J. L., Mccomb, M. C., Medina, R., Moderski, E., Moulin, M., Naumann Godo, M. d., Nauroi, D., Nedbal, D., Nekrassov, B., Nichola, J., Niemiec, S. J., Nolan, S., Ohm, J. F., Olive, E. D., Wilhelmi, K. J., Orford, M., Ostrowski, M., Panter, M. P., Arriba, G., Pedaletti, G., Pelletier, P. O., Petrucci, S., Pita, M., Raue, S. M., Rayner, M., Renaud, F., Rieger, J., Ripken, L., Rob, S., Rosier Lee, G., Rowell, B., Rudak, C. B., Rulten, J., Ruppel, V., Sahakian, A., Santangelo, R., Schlickeiser, F. M., Schock, R., Schroder, U., Schwanke, S., Schwarzburg, S., Schwemmer, A., Shalchi, M., Sikora, J. L., Skilton, H., Sol, D., Spangler, L., Stawarz, R., Steenkamp, C., Stegmann, F., Stinzing, G., Superina, A., Szostek, P. H., Tam, J. P., Tavernet, R., Terrier, O., Tibolla, M., Tluczykont, C. v., Eldik, G., Vasileiadi, C., Venter, L., Venter, J. P., Vialle, P., Vincent, M., Vivier, H. J., Volk, F., Volpe, S. J., Wagner, M., Ward, A. A., Zdziarski, A., Zech, H., Anderhub, L. A., Antonelli, P., Antoranz, M., Backe, C., Baixera, S., Balestra, J. A., Barrio, D., Bastieri, J. B., Gonzlez, J. K., Becker, W., Bednarek, K., Berger, E., Bernardini, A., Biland, R. K., Bock, G., Bonnoli, P., Borda, D. B., Tridon, V., Bosch Ramon, D., Bose, I., Braun, T., Bretz, I., Britvitch, M., Camara, E., Carmona, S., Commichau, J. L., Contrera, J., Cortina, M. T., Costado, S., Covino, V., Curtef, F., Dazzi, A. D., Angeli, E. D., Del Pozo, C. D., Mendez, R. D., los Reye, B. D., Lotto, M. D., Maria, F. D., Sabata, A., Dominguez, D., Dorner, M., Doro, D., Elsaesser, M., Errando, D., Ferenc, E., Fernndez, R., Firpo, M. V., Fonseca, L., Font, N., Galante, R. J. G., Lopez, M., Garczarczyk, M., Gaug, F., Goebel, D., Hadasch, M., Hayashida, A., Herrero, D., Hildebrand, D., Hohne Monch, J., Hose, C. C., Hsu, T., Jogler, D., Kranich, A. L., Barbera, A., Laille, E., Leonardo, E., Lindfor, S., Lombardi, Longo, Francesco, M., Lopez, E., Lorenz, P., Majumdar, G., Maneva, N., Mankuzhiyil, K., Mannheim, L., Maraschi, M., Mariotti, M., Martinez, D., Mazin, M., Meucci, J. M., Miranda, R., Mirzoyan, H., Miyamoto, J., Moldon, M., Mole, A., Moralejo, D., Nieto, K., Nilsson, J., Ninkovic, I., Oya, R., Paoletti, J. M., Parede, M., Pasanen, D., Pascoli, F., Pau, R. G., Pegna, M. A., Perez Torre, M., Persic, L., Peruzzo, F., Prada, E., Prandini, N., Puchade, I., Reichardt, W., Rhode, M., Ribo, J., Rico, M., Rissi, A., Robert, S., Rugamer, A., Saggion, T. Y., Saito, M., Salvati, M., Sanchez Conde, K., Satalecka, V., Scalzotto, V., Scapin, T., Schweizer, M., Shayduk, S. N., Shore, N., Sidro, A., Sierpowska Bartosik, A., Sillanpaa, J., Sitarek, D., Sobczynska, F., Spanier, A., Stamerra, L. S., Stark, L., Takalo, F., Tavecchio, P., Temnikov, D., Tescaro, M., Teshima, D. F., Torre, N., Turini, H., Vankov, R. M., Wagner, V., Zabalza, F., Zandanel, R., Zanin, and J., Zapatero
Subjects: m87 jet, Radio galaxy, Astrophysics, telescope, 01 natural sciences, Astroparticle, Jets (Astrofísica), Radio astronomy, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, tev emission, Multidisciplinary, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Gamma ray, 3. Good health, Forats negres (Astronomia), Radioastronomia, Electrónica, Física nuclear, Electricidad, Astrophysics - High Energy Astrophysical Phenomena, Very High Energy Gamma-ray Astronomy, MAGIC telescope, Galaxies, Radio wave, outburst, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Active galactic nucleus, inner jet, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, X-shaped radio galaxy, veritas, 0103 physical sciences, Nucli galàctic actiu, crab-nebula, VHE Gamma ray, Astrophysics::Galaxy Astrophysics, Active galactic nuclei, variability, 010308 nuclear & particles physics, nucleus, Astronomy, Astrophysics - Astrophysics of Galaxies, Galaxy, Accretion (astrophysics), Astrophysical jets, Black hole, Cherenkov telescope, Astrophysics of Galaxies (astro-ph.GA), Black holes (Astronomy), supermassive black-hole
Abstract: The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 10^12 electron Volts (eV) and are bright sources of very-high-energy (VHE) gamma-ray emission, it is not yet known where the VHE emission originates. Here we report on radio and VHE observations of the radio galaxy M87, revealing a period of extremely strong VHE gamma-ray flares accompanied by a strong increase of the radio flux from its nucleus. These results imply that charged particles are accelerated to very high energies in the immediate vicinity of the black hole., Comment: 21 pages, 5 figures, published in Science, see: http://www.sciencemag.org/cgi/content/abstract/325/5939/444
Published: 2009

18. Upper limits from HESS active galactic nuclei observations in 2005-2007

Author: Aharonian, F., Akhperjanian, A.G., Barres de Almeida, U., Bazer-Bachi, A.R., Behera, B., Beilicke, M., Benbow, W., Bernlohr, K., Boisson, C., Bolz, O., Borrel, V., Braun, I., Brion, E., Brown, A.M., Buhler, R., Bulik, T., Busching, I., Boutelier, T., Carrigan, S., Chadwick, P.M., Chounet, L.-M., Clapson, A.C., Coignet, G., Cornils, R., Costamante, L., Dalton, M., Degrange, B., Dickinson, H.J., Djannati-Ataï, A., Domainko, W., Drury, L.O'C., Dubois, F., Dubus, G., Dyks, J., Egberts, K., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Fiasson, A., Forster, A., Fontaine, G., Funk, Seb., Fusling, M., Gallant, Y.A., Giebels, B., Glicenstein, J.F., Gluck, B., Goret, P., Hadjichristidis, C., Hauser, D., Hauser, M., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J.A., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., de Jager, O.C., Jung, I., Katarzynski, K., Kendziorra, E., Kerschhaggl, M., Khelifi, B., Keogh, D., Komin, Nu., Kosack, K., Lamanna, G., Latham, I.J., Lemiere, A., Lemoine-Goumard, M., Lenain, J.-P., Lohse, T., Martin, J.M., Martineau-Huynh, O., Marcowith, A., Masterson, C., Maurin, D., Maurin, G., Mccomb, T.J.L., Moderski, R., Moulin, Emmanuel, de Naurois, M., Nedbal, D., Nolan, S.J., Ohm, S., Olive, J.-P., de Ona Wilhelmi, E., Orford, K.J., Osborne, J.L., Ostrowski, M., Panter, M., Pedaletti, G., Pelletier, G., Petrucci, P.-O., Pita, S., Puhlhofer, G., Punch, M., Ranchon, S., Raubenheimer, B.C., Raue, M., Rayner, S.M., Renaud, M., Ripken, J., Rob, L., Rolland, L., Rosier-Lees, S., Rowell, G., Rudak, B., Ruppel, J., Sahakian, V., Santangelo, A., Schlickeiser, R., Schock, F., Schroder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sol, H., Spangler, D., Stawarz, L., Steenkamp, R., Stegmann, C., Superina, G., Tam, P.H., Tavernet, J.-P., Terrier, R., van Eldik, C., Vasileiadis, G., Venter, C., Vialle, J.P., Vincent, P., Vivier, M., Volk, H.J., Volpe, F., Wagner, S.J., Ward, M., Zdziarski, A.A., Zech, A., 10859748 - Holleran, Mathew, 12006653 - Venter, Christo, 10179240 - Raubenheimer, Barend Christoffel, 10065857 - De Jager, Ocker Cornelis, 13235176 - Büsching, Ingo, Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-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 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), 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 de Physique Théorique et Astroparticules (LPTA), 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 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), HESS, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO)-AstroParticule et Cosmologie (APC (UMR_7164)), 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), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, 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), 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), and 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)
Subjects: Physics, High energy, Active galactic nucleus, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], active [Galaxies], 010308 nuclear & particles physics, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Gamma ray, Flux, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Crab Nebula, observations [Gamma rays], 13. Climate action, Space and Planetary Science, 0103 physical sciences, High Energy Stereoscopic System, 010303 astronomy & astrophysics
Abstract: 8 Pages, 2 Figures; Accepted on Nov 6, 2007 for publication in Astronomy & Astrophysics; AIMS: Very high energy (VHE; E>100 GeV) gamma-ray studies were performed for 18 active galactic nuclei (AGN) from a variety of AGN classes. METHODS: VHE observations of a sample of 14 AGN, considered candidate VHE emitters, were made with the High Energy Stereoscopic System (HESS) between January 2005 and July 2007. Large-zenith-angle observations of three northern AGN (Mkn 421, Mkn 501, 1ES 1218+304), known to emit VHE gamma rays, were also performed in order to sample their spectral energy distributions (SEDs) above 1 TeV. In addition, the VHE flux from 1ES 1101-232, previously detected by HESS in 2004-2005, was monitored during 2006 and 2007. RESULTS: As significant detections from the HESS observation program are reported elsewhere, the results reported here are primarily integral flux upper limits. The average exposure for each of the 14 VHE-candidate AGN is ~7 h live time, and the observations have an average energy threshold between 230 GeV and 590 GeV. Upper limits for these 14 AGN range from
Published: 2008

19. Gated SiGe PIN diodes exposed to visible light spectrum and heavy-ion radiation.

Author: Buhler, R. T., Novo, C. D., Silveira, M. A. G., and Giacomini, R.
Published: 2016
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20. Search for Pulsed VHE Gamma-Ray Emission from Young Pulsars with H.E.S.S

Author: Aharonian, F., Akhperjanian, A.G., Bazer-Bachi, A.R., Beilicke, M., Benbow, W., Berge, D., Bernlohr, K., Boisson, C., Bolz, O., Borrel, V., Braun, I., Brion, E., Brown, A.M., Buhler, R., Busching, I., Boutelier, T., Carrigan, S., Chadwick, P.M., Chounet, L.-M., Coignet, G., Cornils, R., Costamante, L., Degrange, B., Dickinson, H.J., Djannati-Ataï, A., Drury, L.O'C., Dubus, G., Egberts, K., Eifert, T., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Ferrero, E., Fiasson, A., Fontaine, G., Funk, Seb., Funk, S., Fussling, M., Gallant, Y.A., Giebels, B., Glicenstein, J.F., Gluck, B., Goret, P., Hadjichristidis, C., Hauser, D., Hauser, M., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J.A., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., de Jager, O.C., Kendziorra, E., Kerschhaggl, M., Khelifi, B., Komin, Nu., Kosack, K., Lamanna, G., Latham, I.J., Le Gallou, R., Lemière, A., Lemoine-Goumard, M., Lohse, T., Manchester, R.N., Martin, J.M., Martineau-Huynh, O., Marcowith, A., Masterson, C., Maurin, G., Mccomb, T.J.L., Moulin, Emmanuel, de Naurois, M., Nedbal, D., Nolan, S.J., Noutsos, A., Olive, J.-P., Orford, K.J., Osborne, J.L., Panter, M., Pelletier, G., Petrucci, P.-O., Pita, S., P¨uhlhofer, G., Punch, M., Ranchon, S., Raubenheimer, B.C., Raue, M., Rayner, S.M., Reimer, O., Ripken, J., Rob, L., Rolland, L., Rosier-Lees, S., Rowell, G., Sahakian, V., Santangelo, A., Sauge, L., Schlenker, S., Schlickeiser, R., Schmidt, F., Schroder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sol, H., Spangler, D., Spanier, F., Steenkamp, R., Stegmann, C., Superina, G., Tam, P.H., Tavernet, J.-P., Terrier, R., Tluczykont, M., van Eldik, C., Vasileiadis, G., Venter, C., Vialle, J.P., Vincent, P., Volk, H.J., Wagner, S.J., Ward, M., Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-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 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), 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 de Physique Théorique et Astroparticules (LPTA), 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 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), HESS, Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, 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), 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), 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), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO)-AstroParticule et Cosmologie (APC (UMR_7164)), 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Energy flux, Astrophysics, 01 natural sciences, Spectral line, law.invention, Luminosity, Telescope, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Pulsar, law, 0103 physical sciences, 010303 astronomy & astrophysics, Cherenkov radiation, Gamma-rays: observations, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Gamma ray, Astronomy and Astrophysics, Light curve, Space and Planetary Science, Pulsars: individual: Crab pulsar/ Vela pulsar/ PSRB1259 63/ PSRB1509 58/ PSRB1706 44
Abstract: We present the results of a search for pulsed very-high-energy (VHE) gamma-ray emission from young pulsars using data taken with the H.E.S.S. imaging atmospheric Cherenkov telescope system. Data on eleven pulsars, selected according to their spin-down luminosity relative to distance, are searched for gamma-ray signals with periodicity at the respective pulsar spin period. Special analysis efforts were made to improve the sensitivity in the 100 GeV gamma-ray energy domain in an attempt to reduce the gap between satellite and ground-based gamma-ray instruments. No significant evidence for pulsed emission is found in any data set. Differential upper limits on pulsed energy flux are determined for all selected pulsars in the approximate gamma-ray energy range between 100 GeV and 50 TeV, using different limit determination methods, testing a wide range of possible pulsar light curves and energy spectra. The limits derived here imply that the magnetospheric VHE gamma-ray production efficiency in young pulsars is less than 10^-4 of the pulsar spin-down luminosity, requiring spectral turnovers for the high-energy emission of four established gamma-ray pulsars, and constrain the inverse Compton radiation component predicted by several outer gap models., 13 pages, 11 figures, accepted for publication in A&A
Published: 2007

21. Detection of VHE gamma-ray emission from the distant blazar 1ES 1101-232 with H.E.S.S. and broadband characterisation

Author: Aharonian, F., G. Akhperjanian, A., Bazer-Bachi, A.R., Beilicke, M., Benbow, W., Berge, D., Bernlöhr, K., Boisson, C., Bolz, O., Borrel, V., Braun, I., Brion, E., M. Brown, A., Buhler, R., Busching, I., Boutelier, T., Carrigan, S., M. Chadwick, P., Chounet, L.M., Coignet, G., Cornils, R., Costamante, L., Degrange, B., J. Dickinson, H., Djannati-Ataï, A., O'Connor-Drury, L., Dubus, G., Egberts, K., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Ferrero, E., Fiasson, A., Fontaine, G., Funk, S., Fuling, M., Gallant, Y.A., Giebels, B., Glicenstein, J.F., Glück, B., Goret, P., Hadjichristidis, C., Hauser, D., Hauser, M., Heinzelmann, G., Henri, G., Hermann, G., A. Hinton, J., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., C. De Jager, O., Kendziorra, E., Kerschhaggl, M., Khelifi, B., Komin, N., Kosack, K., Lamanna, G., J. Latham, I., Le Gallou, R., Lemiere, A., Lemoine-Goumard, M., Lohse, T., Martin, J.M., Martineau-Huynh, O., Marcowith, A., Masterson, C., Maurin, G., J. L. Mccomb, T., Moulin, Emmanuel, De Naurois, M., Nedbal, D., J. Nolan, S., Noutsos, A., Olive, J.P., J. Orford, K., L. Osborne, J., Panter, M., Pelletier, G., Petrucci, P.O., Pita, S., Pühlhofer, G., Punch, M., Ranchon, S., C. Raubenheimer, B., Raue, M., M. Rayner, S., Reimer, A., Reimer, O., Ripken, J., Rob, L., Rolland, L., Rosier-Lees, S., Rowell, G., V. Sahakian, V., Santangelo, A., Sauge, L., Schlenker, S., Schlickeiser, R., Schröder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sol, H., Spangler, D., Spanier, F., Steenkamp, R., Stegmann, C., Superina, G., H. Tam, P., Tavernet, J.P., Terrier, R., Tluczykont, M., Van Eldik, C., Vasileiadis, G., Venter, C., Vialle, J.P., Vincent, P., J. Völk, H., J. Wagner, S., Ward, M., Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), 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 d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), APC - Astrophysique des Hautes Energies (APC - AHE), Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO)-AstroParticule et Cosmologie (APC (UMR_7164)), 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), AstroParticule et Cosmologie (APC (UMR_7164)), Laboratoire de Physique Théorique et Astroparticules (LPTA), 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 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), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), HESS, Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), 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 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), 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), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, 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), 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), and 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)
Subjects: [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], galaxies: active, FOS: Physical sciences, Flux, Astrophysics, 01 natural sciences, BL Lacertae objects: individual (1ES 1101-232), [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 0103 physical sciences, High Energy Stereoscopic System, Blazar, 010303 astronomy & astrophysics, Cherenkov radiation, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Gamma ray, Spectral density, Astronomy and Astrophysics, Redshift, Extragalactic background light, 13. Climate action, Space and Planetary Science, gamma rays: observations
Abstract: The blazar 1ES 1101-232 was observed with the High Energy Stereoscopic System (H.E.S.S.) of Atmospheric Cherenkov Telescopes (ACT) in 2004 and 2005, for a live time of 43 hours. VHE (E > 10^11 eV) gamma-rays were detected for the first time from this object. VHE observations of blazars are used to investigate the inner parts of the blazar jets, and also to study the extragalactic background light (EBL) in the near-infrared band. Observations in 2005 were conducted in a multiwavelength campaign, together with the RXTE satellite and optical observations. In 2004, simultaneous observations with XMM-Newton were obtained. 1ES 1101-232 was detected with H.E.S.S. with an excess of 649 photons, at a significance of 10 sigma. The measured VHE gamma-ray flux amounts to dN/dE = (5.63 +- 0.89) x 10^-13 (E/TeV)^-(2.94 +- 0.20) cm^-2 s^-1 TeV^-1, above a spectral energy threshold of 225 GeV. No significant variation of the VHE gamma-ray flux on any time scale was found. 1ES 1101-232 exhibits a very hard spectrum, and at a redshift of z=0.186, is the blazar with the highest confirmed redshift detected in VHE gamma-rays so far. The data allow the construction of truly simultaneous spectral energy distributions of the source, from the optical to the VHE band. Using an EBL model with \nu F_\nu = 14 nW m^-2 sr^-1 at 1.5 \mu m as presented in Aharonian et al. (Nature, 2006, 440, 1018) suggests an intrinsic VHE power output peak of the source at above 3 TeV., Comment: 18 Pages, 6 Figures, accepted for publication in A&A; v2 includes minor changes
Published: 2007

22. An Exceptional VHE Gamma-Ray Flare of PKS 2155-304

Author: Aharonian, F., Akhperjanian, A.G., Bazer-Bachi, A.R., Beilicke, M., Benbow, W., Berge, D., Bernlöhr, K., Boisson, C., Bolz, O., Borrel, V., Braun, I., Brion, E., M. Brown, A., Buhler, R., Busching, I., Boutelier, T., Carrigan, S., Chadwick, P.M., Chounet, L.M., Coignet, G., Cornils, R., Costamante, L., Degrange, B., Dickinson, H.J., Djannati-Ataï, A., O'Connor-Drury, L., Dubus, G., Egberts, K., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Ferrero, E., Fiasson, A., Fontaine, G., Funk, S., Fuling, M., Gallant, Y.A., Giebels, B., Glicenstein, J.F., Glück, B., Goret, P., Hadjichristidis, C., Hauser, D., Hauser, M., Heinzelmann, G., Henri, G., Hermann, G., A. Hinton, J., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., de Jager, O.C., Kendziorra, E., Kerschhaggl, M., Khelifi, B., Komin, N., Kosack, K., Lamanna, G., J. Latham, I., Le Gallou, R., Lemiere, A., Lemoine-Goumard, M., Lohse, T., Martin, J.M., Martineau-Huynh, O., Marcowith, A., Masterson, C., Maurin, G., Mccomb, T.J.L., Moulin, Emmanuel, de Naurois, M., Nedbal, D., Nolan, S.J., Noutsos, A., Olive, J.P., Orford, K.J., Osborne, J.L., Panter, M., Pelletier, G., Petrucci, P.O., Pita, S., Pühlhofer, G., Punch, M., Ranchon, S., Raubenheimer, B.C., Raue, M., Rayner, S.M., Reimer, A., Reimer, O., Ripken, J., Rob, L., Rolland, L., Rosier-Lees, S., Rowell, G., Sahakian, V.V., Santangelo, A., Sauge, L., Schlenker, S., Schlickeiser, R., Schröder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sol, H., Spangler, D., Spanier, F., Steenkamp, R., Stegmann, C., Superina, G., Tam, P.H., Tavernet, J.P., Terrier, R., Tluczykont, M., van Eldik, C., Vasileiadis, G., Venter, C., Vialle, J.P., Vincent, P., Völk, H.J., Wagner, S.J., Ward, M., Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), 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 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), 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 de Physique Théorique et Astroparticules (LPTA), 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 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), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), HESS, Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, 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), 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), 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), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO)-AstroParticule et Cosmologie (APC (UMR_7164)), 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Galaxies: active, Astrophysics, Gamma rays: observations, BL Lacertae objects: Individual: PKS 2155−304
Abstract: The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.116 is a well-known VHE (>100 GeV) gamma-ray emitter. Since 2002 its VHE flux has been monitored using the H.E.S.S. stereoscopic array of imaging atmospheric-Cherenkov telescopes in Namibia. During the July 2006 dark period, the average VHE flux was measured to be more than ten times typical values observed from the object. This article focuses solely on an extreme gamma-ray outburst detected in the early hours of July 28, 2006 (MJD 53944). The average flux observed during this outburst is I(>200 GeV) = (1.72$\pm$$0.05_{\rm stat}$$\pm$$0.34_{\rm syst}$) $\times$ 10$^{-9}$ cm$^{-2}$ s$^{-1}$, corresponding to ~7 times the flux, I(>200 GeV), observed from the Crab Nebula. Peak fluxes are measured with one-minute time scale resolution at more than twice this average value. Variability is seen up to ~600 s in the Fourier power spectrum, and well-resolved bursts varying on time scales of ~200 seconds are observed. There are no strong indications for spectral variability within the data. Assuming the emission region has a size comparable to the Schwarzschild radius of a ~10$^9 M_\odot$ black hole, Doppler factors greater than 100 are required to accommodate the observed variability time scales., Accepted (June 5, 2007) for publication in ApJ Letters; 6 pages, 3 figures; [Revisions: added 1 reference to a newly accepted article, 1 extra digit added to 1st column in table 1, \clearpages removed to save trees.]
Published: 2007

23. New constraints on the Mid-IR EBL from the HESS discovery of VHE gamma rays from 1ES 0229+200

Author: Aharonian, F., Akhperjanian, A.G., Barres De Almeida, U., Bazer-Bachi, A.R., Behera, B., Beilicke, M., Benbow, W., Bernlohr, K., Boisson, C., Bolz, O., Borrel, V., Braun, I., Brion, E., Brown, A.M., Buhler, R., Bulik, T., Busching, I., Boutelier, T., Carrigan, S., Chadwick, P.M., Chounet, L.-M., Clapson, A.C., Coignet, G., Cornils, R., Costamante, L., Dalton, M., Degrange, B., Dickinson, H.J., Djannati-Atai, A., Domainko, W., Drury, L.O'C., Dubois, F., Dubus, G., Dyks, J., Egberts, K., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Fiasson, A., Forster, A., Fontaine, G., Funk, Seb., Fusling, M., Gallant, Y.A., Giebels, B., Glicenstein, J.F., Gluck, B., Goret, P., Hadjichristidis, C., Hauser, D., Hauser, M., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J.A., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, S., Horns, D., Jacholkowska, A., De Jager, O.C., Jung, I., Katarzynski, K., Kendziorra, E., Kerschhaggl, M., Khelifi, B., Keogh, D., Komin, Nu., Kosack, K., Lamanna, G., Latham, I.J., Lemiere, A., Lemoine-Goumard, M., Lenain, J.-P., Lohse, T., Martin, J.M., Martineau-Huynh, O., Marcowith, A., Masterson, C., Maurin, D., Maurin, G., Mccomb, T.J.L., Moderski, R., Moulin, Emmanuel, De Naurois, M., Nedbal, D., Nolan, S.J., Ohm, S., Olive, J.-P., De Ona Wilhelmi, E., Orford, K.J., Osborne, J.L., Ostrowski, M., Panter, M., Pedaletti, G., Pelletier, G., Petrucci, P.-O., Pita, S., Puhlhofer, G., Punch, M., Ranchon, S., Raubenheimer, B.C., Raue, M., Rayner, S.M., Renaud, M., Ripken, J., Rob, L., Rolland, L., Rosier-Lees, S., Rowell, G., Rudak, B., Ruppel, J., Sahakian, V., Santangelo, A., Schlickeiser, R., Schock, F., Schroder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sol, H., Spangler, D., Stawarz, L., Steenkamp, R., Stegmann, C., Superina, G., Tam, P.H., Tavernet, J.-P., Terrier, R., Van Eldik, C., Vasileiadis, G., Venter, C., Vialle, J.P., Vincent, P., Vivier, M., Volk, H.J., Volpe, F., Wagner, S.J., Ward, M., Zdziarski, A.A., Zech, A., Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, 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)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), AstroParticule et Cosmologie (APC (UMR_7164)), 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), Laboratoire de Physique Théorique et Astroparticules (LPTA), 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 de Physique Nucléaire et de Hautes Énergies (LPNHE), 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), APC - Astrophysique des Hautes Energies (APC - AHE), 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), HESS, Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-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)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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)-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), 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), Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO)-AstroParticule et Cosmologie (APC (UMR_7164)), 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, Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), 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)-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, and 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)
Subjects: [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, 01 natural sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 0229+200, 0103 physical sciences, High Energy Stereoscopic System, Source counts, 010303 astronomy & astrophysics, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Gamma ray, HEGRA, Astronomy and Astrophysics, Redshift, Crab Nebula, Extragalactic background light, galaxies: BL lacertae objects: individual: 1ES, Space and Planetary Science, Spectral energy distribution, High Energy Physics::Experiment, gamma rays: observations
Abstract: AIMS: To investigate the very high energy (VHE: >100 GeV) gamma-ray emission from the high-frequency peaked BL Lac 1ES 0229+200. METHODS: Observations of 1ES 0229+200 at energies above 580 GeV were performed with the High Energy Stereoscopic System (HESS) in 2005 and 2006. RESULTS: 1ES 0229+200 is discovered by HESS to be an emitter of VHE photons. A signal is detected at the 6.6 sigma level in the HESS observations (41.8 h live time). The integral flux above 580 GeV is (9.4 +- 1.5 {stat} +- 1.9 {syst}) x 10^{-13} cm^{-2} s^{-1}, corresponding to ~1.8% of the flux observed from the Crab Nebula. The data show no evidence for significant variability on any time scale. The observed spectrum is characterized by a hard power law (Gamma = 2.50 +- 0.19 {stat} +- 0.10 {syst}) from 500 GeV to ~15 TeV. CONCLUSIONS: The high-energy range and hardness of the observed spectrum, coupled with the object's relatively large redshift (z=0.1396), enable the strongest constraints so far on the density of the Extragalactic Background Light (EBL) in the mid-infrared band. Assuming that the emitted spectrum is not harder than Gamma_{int} ~ 1.5, the HESS data support an EBL spectrum ~ lambda^{-1} and density close to the lower limit from source counts measured by Spitzer, confirming the previous indications from the HEGRA data of 1ES 1426+428 (z=0.129). Irrespective of the EBL models used, the intrinsic spectrum of 1ES 0229+200 is hard, thus locating the high-energy peak of its spectral energy distribution above a few TeV., 5 pages, 4 figures; Accepted for publication in A&A Letters on September 23, 2007
Published: 2007

24. Evidence for VHE Gamma-ray Emission from the Distant BL Lac PG 1553+113

Author: Aharonian, F., Akhperjanian, A.G., Bazer-Bachi, A.R., Beilicke, M., Benbow, Wystan, Berge, David, Bernlohr, K., Boisson, C., Bolz, O., Borrel, V., Braun, I., Breitling, F., Brown, A.M., Buhler, R., Carrigan, S., Chadwick, P.M., Chounet, L.-M., Cornils, R., Costamante, L., Degrange, B., Dickinson, H.J., Djannati-Ataï, A., Drury, L.O'C., Dubus, G., Egberts, K., Emmanoulopoulos, D., Espigat, P., Feinstein, F., Fontaine, G., Funk, S., Gallant, Y., Giebels, B., Glicenstein, J.F., Goret, P., Hadjichristidis, C., Hauser, D., Hauser, M., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J.A., Hofmann, W., Holleran, M., Horns, Dieter, Jacholkowska, A., De Jager, O.C., Khelifi, B., Klages, S., Komin, Nu., Konopelko, A., Latham, I.J., Le Gallou, R., Lemiere, A., Lemoine-Goumard, M., Lohse, T., Martin, J.M., Martineau-Huynh, O., Marcowith, A., Masterson, C., Mccomb, T.J.L., De Naurois, M., Nedbal, D., Nolan, S.J., Noutsos, A., Orford, K.J., Osborne, J.L., Ouchrif, M., Panter, M., Pelletier, G., Pita, S., Puhlhofer, G., Punch, M., Raubenheimer, B.C., Raue, M., Rayner, S.M., Reimer, A., Reimer, O., Ripken, J., Rob, L., Rolland, L., Rowell, G., Sahakian, V., Sauge, L., Schlenker, S., Schlickeiser, R., Schuster, C., Schwanke, U., Siewert, M., Sol, H., Spangler, D., Steenkamp, R., Stegmann, C., Superina, G., Tavernet, J.-P., Terrier, R., Theoret, C.G., Tluczykont, M., Van Eldik, C., Vasileiadis, G., Venter, C., Vincent, P., Volk, H.J., Wagner, S.J., Ward, M., Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), AstroParticule et Cosmologie (APC (UMR_7164)), 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), Laboratoire de Physique Théorique et Astroparticules (LPTA), 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 de Physique Nucléaire et de Hautes Énergies (LPNHE), 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), HESS, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), 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), 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, and 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)
Subjects: Physics, Photon, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Gamma ray, FOS: Physical sciences, Sigma, Flux, Astronomy and Astrophysics, Context (language use), Astrophysics, Galaxies: active, Gamma rays: observations, 01 natural sciences, Redshift, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Extragalactic background light, Space and Planetary Science, 0103 physical sciences, Absorption (logic), 010303 astronomy & astrophysics, BL lacertae objects: Individual: PG 1553+113
Abstract: The high-frequency peaked BL Lac PG 1553+113 was observed in 2005 with the H.E.S.S. stereoscopic array of imaging atmospheric-Cherenkov telescopes in Namibia. Using the H.E.S.S. standard analysis, an excess was measured at the 4.0 sigma level in these observations (7.6 hours live time). Three alternative, lower-threshold analyses yield >5 sigma excesses. The observed integral flux above 200 GeV is (4.8 +/- 1.3_{stat} +/- 1.0_{syst}) x10^{-12} cm^{-2} s^{-1}, and shows no evidence for variability. The measured energy spectrum is characterized by a very soft power law (photon index of Gamma=4.0 +/- 0.6). Although the redshift of PG 1553+113 is unknown, there are strong indications that it is greater than z=0.25 and possibly larger than z=0.78. The observed spectrum is interpreted in the context of VHE gamma-ray absorption by the Extragalactic Background Light, and is used to place an upper limit on the redshift of z, 5 pages, 3 figures; accepted (Jan. 19, 2006) for publication in Astronomy & Astrophysics
Published: 2006

25. Fin Dimension Influence on Mechanical Stressors in Triple-Gate SOI nMOSFETs

Author: Buhler, R. T., primary, Simoen, E., additional, Agopian, P. G. D., additional, Claeys, C., additional, and Martino, J. A., additional
Published: 2013
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26. Biaxial + uniaxial stress effectiveness in tri-gate SOI nMOSFETs with variable fin dimensions

Author: Buhler, R. T., primary, Agopian, P. G. D., additional, Simoen, E., additional, Claeys, C., additional, and Martino, J. A., additional
Published: 2012
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27. Fin width influence on uniaxial stress of triple-gate SOI nMOSFETs

Author: Buhler, R. T., primary, Martino, J. A., additional, Agopian, P. G. D., additional, and Giacomini, R., additional
Published: 2012
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28. Management and outcome of CSF-JC virus PCR-negative PML in a natalizumab-treated patient with MS

Author: Kuhle, J., primary, Gosert, R., additional, Buhler, R., additional, Derfuss, T., additional, Sutter, R., additional, Yaldizli, O., additional, Radue, E.- W., additional, Ryschkewitsch, C., additional, Major, E. O., additional, Kappos, L., additional, Frank, S., additional, and Hirsch, H. H., additional
Published: 2011
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29. Uniaxial stress efficiency for different fin dimensions of triple-gate SOI nMOSFETs

Author: Buhler, R. T., primary, Agopian, P. G. D., additional, Giacomini, R., additional, Simoen, E., additional, Claeys, C., additional, and Martino, J. A., additional
Published: 2011
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30. Classification and fertility status of organically managed fields across Saskatchewan, Canada

Author: Knight, J.D., primary, Buhler, R., additional, Leeson, J.Y., additional, and Shirtliffe, S., additional
Published: 2010
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31. Fin shape influence on the analog performance of standard and strained MuGFETs

Author: Buhler, R. T., primary, Martino, J. A., additional, Agopian, P. G. D., additional, Giacomini, R., additional, Simoen, E., additional, and Claeys, C., additional
Published: 2010
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32. From micro to nano FinFETs: The impact of channel-shape on analog parameters

Author: Buhler, R. T., primary, Giacomini, R., additional, Pavanello, M. A., additional, and Martino, J. A., additional
Published: 2009
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33. H.E.S.S. Observations of the Supernova Remnant RX J0852.0−4622: Shell‐Type Morphology and Spectrum of a Widely Extended Very High Energy Gamma‐Ray Source

Author: Aharonian, F., primary, Akhperjanian, A. G., additional, Bazer‐Bachi, A. R., additional, Beilicke, M., additional, Benbow, W., additional, Berge, D., additional, Bernlohr, K., additional, Boisson, C., additional, Bolz, O., additional, Borrel, V., additional, Braun, I., additional, Brown, A. M., additional, Buhler, R., additional, Busching, I., additional, Carrigan, S., additional, Chadwick, P. M., additional, Chounet, L.‐M., additional, Coignet, G., additional, Cornils, R., additional, Costamante, L., additional, Degrange, B., additional, Dickinson, H. J., additional, Djannati‐Atai, A., additional, Drury, L. O’C., additional, Dubus, G., additional, Egberts, K., additional, Emmanoulopoulos, D., additional, Espigat, P., additional, Feinstein, F., additional, Ferrero, E., additional, Fiasson, A., additional, Filipovic, M. D., additional, Fontaine, G., additional, Fukui, Y., additional, Funk, Seb., additional, Funk, S., additional, Fusling, M., additional, Gallant, Y. A., additional, Giebels, B., additional, Glicenstein, J. F., additional, Goret, P., additional, Hadjichristidis, C., additional, Hauser, D., additional, Hauser, M., additional, Heinzelmann, G., additional, Henri, G., additional, Hermann, G., additional, Hinton, J. A., additional, Hiraga, J. S., additional, Hoffmann, A., additional, Hofmann, W., additional, Holleran, M., additional, Hoppe, S., additional, Horns, D., additional, Ishisaki, Y., additional, Jacholkowska, A., additional, de Jager, O. C., additional, Kendziorra, E., additional, Kerschhaggl, M., additional, Khelifi, B., additional, Komin, Nu., additional, Konopelko, A., additional, Kosack, K., additional, Lamanna, G., additional, Latham, I. J., additional, Le Gallou, R., additional, Lemiere, A., additional, Lemoine‐Goumard, M., additional, Lohse, T., additional, Martin, J. M., additional, Martineau‐Huynh, O., additional, Marcowith, A., additional, Masterson, C., additional, Maurin, G., additional, McComb, T. J. L., additional, Moulin, E., additional, Moriguchi, Y., additional, de Naurois, M., additional, Nedbal, D., additional, Nolan, S. J., additional, Noutsos, A., additional, Orford, K. J., additional, Osborne, J. L., additional, Ouchrif, M., additional, Panter, M., additional, Pelletier, G., additional, Pita, S., additional, Puhlhofer, G., additional, Punch, M., additional, Ranchon, S., additional, Raubenheimer, B. C., additional, Raue, M., additional, Rayner, S. M., additional, Reimer, A., additional, Ripken, J., additional, Rob, L., additional, Rolland, L., additional, Rosier‐Lees, S., additional, Rowell, G., additional, Sahakian, V., additional, Santangelo, A., additional, Sauge, L., additional, Schlenker, S., additional, Schlickeiser, R., additional, Schroder, R., additional, Schwanke, U., additional, Schwarzburg, S., additional, Schwemmer, S., additional, Shalchi, A., additional, Sol, H., additional, Spangler, D., additional, Spanier, F., additional, Steenkamp, R., additional, Stegmann, C., additional, Superina, G., additional, Tam, P. H., additional, Tavernet, J.‐P., additional, Terrier, R., additional, Tluczykont, M., additional, van Eldik, C., additional, Vasileiadis, G., additional, Venter, C., additional, Vialle, J. P., additional, Vincent, P., additional, Volk, H. J., additional, Wagner, S. J., additional, and Ward, M., additional
Published: 2007
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34. High enthalpy gas heater Final report

Author: Buhler, R. D and Richter, R
Subjects: Thermodynamics And Combustion
Abstract: High enthalpy constricted arc heater for materials and structural testing
Published: 1965

35. Constricted high enthalpy arc heater design and performance data, including calculations for a 10 MW design First interim technical report

Author: Buhler, R. D, Marlotte, G. L, and Richter, R
Subjects: Thermodynamics And Combustion
Abstract: Performance prediction and design analysis of constricted coaxial-flow arc air heaters for materials testing and atmospheric entry simulation
Published: 1965

36. Nuclear-electric power requirements for electric rockets

Author: Brewer, G. R, Buhler, R. D, Jahn, R. G, John, R. R, Stearns, J. W, and Toms, R. S. H
Subjects: Chemistry
Abstract: Nuclear-electric power requirements for electric rockets - contact and bombardment ion engines, arc jets, and pulsed plasma engines
Published: 1964

37. Relapse of Systemic Lupus erythematosus after Extracorporeal Immunoadsorption

Author: Higgins, R.M., primary, Streather, C.P., additional, Buhler, R., additional, and Hendry, B.M., additional
Published: 1995
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38. Drastic differences in geminate ion kinetics, dependent on anion lifetimes

Author: Buhler, R. E.
Published: 2001
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39. The triple stimulation technique to study central motor conduction to the lower limbs

Author: Buhler, R., Magistris, M. R., Truffert, A., Hess, C. W., and Rosler, K. M.
Published: 2001
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40. Quadricyclane Radical Cation Q+: Formation and Isomerization in Liquid Methylcyclohexane

Author: Buhler, R. E. and Quadir, M. A.
Abstract: The radical cation of quadricyclane (Q) was studied by pulse radiolysis at 133 K with methylcyclohexane (MCH) as solvent, saturated with N2O. The known solvent radical cations, MCH⁺ and its precursor M^+*, are expected to produce Q⁺ by charge transfer. Although Q⁺ was known not to absorb in the visible λ-range, there was a very early absorption band at λmax = 720 nm (the transient is called Q^+*), which eventually transformed into the cation of norbornadiene (NBD⁺) with λmax = 650 nm. The analysis of the geminate ion kinetics with the semiempirical t^-0.6 kinetic law revealed that Q^+* decays faster than the isomer NBD⁺ is built up. Q^+* must be a precursor to the nonabsorbing Q⁺, which eventually isomerizes to NBD⁺, followed by a back reaction with Q to re-form Q⁺. The quantitative analysis revealed that a substantial amount of the cations is lost before NBD⁺ is formed. This loss to a fragment or isomer (called F⁺) occurs from Q^+*. As this loss dropped drastically for very low [Q], Q^+* must increasingly be bypassed by lowering [Q]. It turns out that Q^+* is produced from M^+* only (the higher energy precursor of the solvent radical cation MCH⁺) in competition with the transformation of M^+* to MCH⁺, the latter becoming dominant at low [Q], increasingly producing Q⁺ directly from MCH⁺ without going through Q^+*. The loss yield (F⁺) correspondingly loses. The complete mechanism is given (Scheme 3). All the rate constants and the free ion contributions of all cations were determined and, together with the known Gfi value, the absorption coefficients were derived. Comparing these results with a mechanism proposed recently by Adam et al. (J. Am. Chem. Soc. 1995, 117, 9693) suggests that Q^+* corresponds to their cation Q⁺(l), where the lateral bonds are oxidized, Q⁺ to their cation Q⁺(i), where the internal bonds are oxidized, and F⁺ to the Q⁺ isomer BHD⁺ (the bicyclo[3.2.0]hepta-2,6-diene cation). The precursor ion M^+* of the solvent, which is responsible for the Q^+* production must be of higher energy than MCH⁺; however, its structure remains unknown. The two precursor cations, M^+* and Q^+*, are critically compared and discussed.
Published: 2000

41. Chloroform Anion Fragmentation in Liquid Methylcyclohexane: t-0.6 Simulation of the Geminate Ion Kinetics

Author: Buhler, R. E., Domazou, A. S., and Katsumura, Y.
Abstract: The chloroform anion in liquid methylcyclohexane (MCH) fragments during the time scale of geminate ion recombination (143 K ≤ T ≤ 193 K). Its lifetime can only be determined if the geminate ion kinetics can be calculated. The t^-^0.6 semiempirical law is used. Because CHCl3 quenches M⁺*, the precursor of the solvent radical cation MCH⁺, much less effectively than N2O, the fragmentation of M⁺* to produce the methylcyclohexene cation (MCHene⁺) has to be considered by theory. The t^-0.6 simulation therefore was modified to include the two parallel reactions of the M⁺* decay, which are forming mixed ion pairs (MCHene⁺, MCH⁺/X^-). It is found that mixed pairs are still describable by the t^-0.6 linearity, yet the mobility factor δ (slope of t^-0.6) is now λ-dependent. Complete simulation of the ionic mechanism yields the following results: (1) The fragmentation rate constant for %@mt;sys@%CHCl%@sx@%3%@be@%-%@sxx@%%@mx@% is k1(143 K) = (3.6 ± 0.3) × 10⁶ s^-1 with Eact = 4.6 ± 0.5 kJ/mol and logA = 8.2 ± 0.2. The lifetime of 280 ns is substantially larger than expected from gas phase data. (2) By applying the known Gfi values to the free ion spectra at 143 K, 153 K, and 173 K, the absorption coefficients of the %@mt;sys@%CHCl%@sx@%3%@be@%-%@sxx@%%@mx@% band were determined and a Lorentzian line shape fitted: λmax = 470 nm, εmax = 1900 ± 30 M^-1 s^-1 and a width of hwhm = 28 ± 2 nm. (3) Assuming that the M⁺* fragmentation (kfrag) and the natural relaxation to MCH⁺ (k0) are the same as in N2O-saturated MCH, the quenching rate constant at 143 K may be derived: k2(M⁺* + CHCl3 → MCH⁺) = (7.7 ± 2.6) × 10⁶ M^-1 s^-1. Quenching by CHCl3 therefore is about four times slower than by N2O; the yield of the olefinic cation (MCHene⁺) is strongly increased relative to the MCH⁺ yield. Furthermore, the ratio quenching/fragmentation with chloroform as solute is found to increase with temperature, suggesting that fragmentation at room temperature might have much less importance.
Published: 1999

42. Vibrations of H<INF>8</INF>Si<INF>8</INF>O<INF>12</INF>, D<INF>8</INF>Si<INF>8</INF>O<INF>12</INF>, and H<INF>10</INF>Si<INF>10</INF>O<INF>15</INF> As Determined by INS, IR, and Raman Experiments

Author: Marcolli, C., Laine, P., Buhler, R., Calzaferri, G., and Tomkinson, J.
Abstract: A detailed study of the vibrational structure of the silasesquioxanes H8Si8O12 and H10Si10O15 based on INS, IR, and Raman spectra and on a normal-coordinate analysis is reported. The inelastic neutron scattering (INS) spectrum of crystalline H8Si8O12 is in good agreement with the optical data and allowed the assignment of optically forbidden transitions. The previously published force field, determined from IR and Raman data of H8Si8O12 and D8Si8O12, provided a good fit to the INS frequencies and intensities except in the O−Si−H bending region, which is sensitive to intermolecular interactions. The INS spectrum, a comparison of the Raman spectra of dissolved and solid H8Si8O12, and published diffraction data were used to analyse the influence of crystal packing. A modified force field was developed which is adapted to crystalline H8Si8O12 and distinguishes between O−Si−H bending force constants for the axial and the equatorial hydrogen atoms. Excellent agreement with all spectra was thus obtained. This force field was also applied to the INS spectra of H10Si10O15 and D8Si8O12. Based on a normal-coordinate analysis of the INS data, the total mean-square displacements (msd) of the hydrogen atoms of H8Si8O12 were extracted as well as limits for the total msd of the silicon atoms. The msd's and the neutron diffraction values are in good agreement, showing that no or very little static disorder is present in crystalline H8Si8O12. Based on the msd's, the lowest internal torsional frequency was estimated to be 41 ± 7 cm^-1.
Published: 1997

43. A Precursor to the Solvent Radical Cation MCH+: Pulse Radiolysis of Liquid Methylcyclohexane (MCH) at 143 K

Author: Buhler, R. E. and Katsumura, Y.
Abstract: It is shown by pulse radiolysis that in N2O-saturated methylcyclohexane (MCH) the solvent radical cation MCH⁺ is formed, but in argon-saturated MCH, the olefinic fragment cation methylcyclohexene⁺ (MCHexene⁺) is obtained. From simulations of the geminate ion kinetics with the t^-0.6 semiempirical rate law, it is concluded that both cations must have a common precursor: some excited state of MCH⁺, called M⁺*. This precursor either fragments to form MCHexene⁺ or is quenched, e.g. by N2O, to form MCH⁺, or relaxes in the MCH environment. The corresponding rate constants at 143 K are kfrag = (2.5 ± 0.5) × 10⁶ s^-1, k2(M⁺* + N2O) = (3.1 ± 0.5) × 10⁷ M^-1 s^-1 and k0 = (3.2 ± 1.6) × 10⁵ s^-1. The mobility of M⁺* was assumed to correspond to that of the fast MCH⁺, i.e. DM+* ≈ DMCH+ = (1.8 ± 0.2) × 10^-6 cm² s^-1. The mobility of the solvated electron, De-solv, was determined to be (1.6 ± 0.2) × 10^-6 cm² s^-1. From a Lorentzian line shape analysis of the free ion intercept spectra, the individual yields for both systems were derived. The optimal line parameters are the following: for MCH⁺ λmax = 570 nm, hwhm (half-width at half-maximum) = 19000 cm^-1; for MCHexene⁺ λmax = 450 nm, hwhm = 5500 cm^-1; and for e^-solv λmax = 1900 nm, hwhm = 4500 cm^-1. Using the known free ion yield (Gfi = 0.06 ± 0.015 (100 eV)^-1) the absorption coefficients are calculated to be: ε(MCHexene⁺)450nm = 2260 ± 200 M^-1 cm^-1, ε(MCH⁺)570nm = 1910 ± 150 M^-1 cm^-1, ε(e^-solv)700nm = 1100 ± 50 M^-1 cm^-1, and ε(M⁺*)600nm = 700 ± 50 M^-1 cm^-1. The error limits given are due to the line shape analysis only. There is an additional systematic effect due to the error-limit for the Gfi-value (±25%): all ε-values become higher if the Gfi-value should be smaller.
Published: 1998

44. Nonsteady Model for Pulsed Arc Discharge Radiation Sources

Author: Hug, W. F., Shaw, J. F., and Buhler, R. D.
Abstract: A linearized nonsteady energy equation provides a semiempirical model to describe the electrical impedance and radiant output response of pulsed arc discharge flashlamps. The measured electrical impedance and radiant output of cesium–neon flashlamps are shown to correlate with the internal energy density of the arc for nonsteady as well as quasi-steady input pulse waveforms.
Published: 1973

45. MOLECULAR-CLONING AND CHARACTERIZATION OF A CDNA FOR THE BETA-SUBUNIT OF HUMAN ALCOHOL-DEHYDROGENASE

Author: DUESTER, G, HATFIELD, GW, BUHLER, R, HEMPEL, J, JORNVALL, H, and SMITH, M
Published: 1984

46. BASIC RESEARCH ON GAS FLOWS THROUGH ELECTRIC ARCS-HOT GAS CONTAINMENT LIMITS

Author: XEROX ELECTRO-OPTICAL SYSTEMS PASADENA CA, Cann, G. L., Buhler, R. D., Harder, R. L., Moore, R. A., XEROX ELECTRO-OPTICAL SYSTEMS PASADENA CA, Cann, G. L., Buhler, R. D., Harder, R. L., and Moore, R. A.
Abstract: Extensive measurements in a "cascade" type arc research apparatus were carried out with four gases (hydrogen, helium, ammonia, and argon), covering both the inlet region and the fully developed region of the coaxial flow discharge. The inlet (gas heater) region results for three gases were compared with the Stine-Watson first order theory. To estimate the ultimate technical limits of arc gas heater performance the well known approximate theories for the fully developed arc column (Parabola and Bessel Models) were extended to include radiation and, (for the high current regime) the self-magnetic pressure gradient. Hot gas containment limits (highest radially averaged outlet enthalpy vs. pressure) were calculated for air, for a range of allowable wall heat loads (0.1-10 kw/sq cm). It is concluded that: (1) Heat loads from mechanisms other than the simple hot gas containment (e.g. electrode heat loads, local secondary arcs, etc.) have so far limited the enthalpy pressure values achieved. (2) Gas heater performance substantially above the 1961 state of the art curve appears technically possible, with optimum designs.
Published: 1964

47. Increased ethanol consumption and blood ethanol levels in rats with portacaval shunts

Author: Martin, J. R., primary, Porchet, H., additional, Buhler, R., additional, and Bircher, J., additional
Published: 1985
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48. Ozone Decomposition in Water Studied by Pulse Radiolysis 1. HO2/O2- and HO3/O3- as Intermediates - Correction

Author: Buhler, R, primary, Staehelin, J, additional, and Hoigne, J, additional
Published: 1984
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49. Discussion: “Two-Dimensional Inflow Conditions for a Supersonic Compressor With Curved Blades” (Levine, Philip, 1957, ASME J. Appl. Mech., 24, pp. 165–169)

Author: Buhler, R. D., primary
Published: 1958
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50. Power conversion and conditioning for 300-1200 kw plasma propulsion systems

Author: BUHLER, R., primary and MOORE, R., additional
Published: 1964
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