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477 results on '"Krömer, O."'

2. Imporoving reconstrucion methods for radio measurements with Tunka-Rex

Author

Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Kromer, O., Kungel, V., Kuzmichev, L. A., Lenok, V., Lubsandorzhiev, N., Marshalkina, T. N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Schroeder, F. G., and Zagorodnikov, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Tunka-Rex is detector for radio emission produced by cosmic-ray air-showers located in Siberia, triggered by Tunka-133, a co-located air-Cherenkov detector during night, and by a scintillator array Tunka-Grande during day. Tunka-Rex demonstrates that the radio technique can provide a cost-effective extension of existing air-shower arrays. Operating in the frequency range of 30-80 MHz, Tunka-Rex is limited by the galactic background, and suffers from the local radio interferences. We investigate the possibilities of the improving of measured data using different approaches, particularly, the multivariate background suppression is considered, as well as improved likelihood fit of the lateral distribution of amplitudes., Comment: XXV ECRS 2016 Proceedings - eConf C16-09-04.3

Published
2017

3. The Tunka Radio Extension, an antenna array for high-energy cosmic-ray detection

Author

Kazarina, Y., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kleifges, M., Korosteleva, E. E., Kostunin, D., Kromer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Marshalkina, T. N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Schröder, F. G., and Zagorodnikov, A.

Subjects
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

This article presents the first results of the combined measurements of Tunka-Rex and Tunka-Grande as well as studies of the antenna alignment effect and an overview of the recent Tunka-Rex results., Comment: XXV ECRS 2016 Proceedings - eConf C16-09-04.3

Published
2017

4. The InSight HP3 Penetrator (Mole) on Mars: Soil Properties Derived from the Penetration Attempts and Related Activities

Author

Spohn, T., Hudson, T. L., Marteau, E., Golombek, M., Grott, M., Wippermann, T., Ali, K. S., Schmelzbach, C., Kedar, S., Hurst, K., Trebi-Ollennu, A., Ansan, V., Garvin, J., Knollenberg, J., Müller, N., Piqueux, S., Lichtenheldt, R., Krause, C., Fantinati, C., Brinkman, N., Sollberger, D., Delage, P., Vrettos, C., Reershemius, S., Wisniewski, L., Grygorczuk, J., Robertsson, J., Edme, P., Andersson, F., Krömer, O., Lognonné, P., Giardini, D., Smrekar, S. E., and Banerdt, W. B.

Published
2022
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8. Studying ultrahigh-energy cosmic rays with the Tunka Radio Extension

Author

Fedorov, O. L., Bezyazeekov, P. A., Budnev, N. M., Wischnewski, R., Gress, O. A., Zagorodnikov, A., Kazarina, Y. A., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Kungel, V., Lubsandorzhiev, N. B., Marshalkina, T. N., Mirgazov, R. R., Monkhoev, R. D., Osipova, E. A., Pankov, L. V., Pakhorukov, A. L., Prosin, V. V., Rubtsov, G. I., Hiller, R., Haungs, A., Huege, T., and Schröder, F. G.

Published
2017
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9. LOPES 3D -- studies on the benefits of EAS-radio measurements with vertically aligned antennas

Author

Huber, D., Apel, W. D., Arteaga-Velazquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Łuczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J. A., Huber, D., Apel, W. D., Arteaga-Velazquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Łuczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J. A.

Abstract

The LOPES experiment was a radio interferometer built at the existing air shower array KASCADE-Grande in Karlsruhe, Germany. The last configuration of LOPES was called LOPES 3D and consisted of ten tripole antennas. Each of these antennas consisted of three crossed dipoles east-west, north-south, and vertically aligned. With this, LOPES 3D had the unique possibility to study the benefits of measurements with vertically aligned antennas in the environment of the well understood and calibrated particle detector array KASCADE-Grande. The measurements with three spatially coincident antennas allows a redundant reconstruction of the electric field vector. Several methods to exploit the redundancy were developed and tested. Furthermore, for the first time in LOPES, the background noise could be studied polarization- and direction dependent. With LOPES 3D it could be demonstrated that radio detection reaches a higher efficiency for inclined showers when including measurements with vertically aligned antennas and that the vertical component gets more important for the measurement of inclined showers. In this contribution we discuss a weighting scheme for the best combination of three redundant reconstructed electric field vectors. Furthermore, we discuss the influence of these weighting schemes on the ability to reconstruct air showers using the radio method. We show an estimate of the radio efficiency for inclined showers with focus on the benefits of measurements with vertically aligned antennas and we present the direction dependent noise in the different polarizations., Comment: Submission to the proceedings of the ARENA2014 workshop, which unfortunately were never published; thus documented here for reference

Published
2022

10. Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory

Author

Aab, A., Abreu, P., Aglietta, M., Ahn, E. J., Samarai, I. Al, Albuquerque, I. F. M., Allekotte, I., Allen, J., Allison, P., Almela, A., Castillo, J. Alvarez, Alvarez-Muñiz, J., Batista, R. Alves, Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Aranda, V. M., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Awal, N., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Billoir, P., Blaess, S., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brancus, I., Bridgeman, A., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero-Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Coleman, A., Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Cordier, A., Coutu, S., Covault, C. E., Cronin, J., Curutiu, A., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., Almeida, R. M. de, Domenico, M. De, Jong, S. J. de, Neto, J. R. T. de Mello, Mitri, I. De, Oliveira, J. de, Souza, V. de, Peral, L. del, Deligny, O., Dembinski, H., Dhital, N., Giulio, C. Di, Matteo, A. Di, Diaz, J. C., Castro, M. L. Díaz, Diogo, F., Dobrigkeit, C., Docters, W., D’Olivo, J. C., Dorofeev, A., Hasankiadeh, Q. Dorosti, Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Luis, P. Facal San, Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Fröhlich, U., Fuchs, B., Fujii, T., Gaior, R., García, B., Roca, S. T. Garcia, Garcia-Gamez, D., Garcia-Pinto, D., Garilli, G., Bravo, A. Gascon, Gate, F., Gemmeke, H., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Glass, H., Berisso, M. Gómez, Vitale, P. F. Gómez, Gonçalves, P., Gonzalez, J. G., González, N., Gookin, B., Gordon, J., Gorgi, A., Gorham, P., Gouffon, P., Grebe, S., Griffith, N., Grillo, A. F., Grubb, T. D., Guarino, F., Guedes, G. P., Hampel, M. R., Hansen, P., Harari, D., Harrison, T. A., Hartmann, S., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Jandt, I., Jansen, S., Jarne, C., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuempel, D., Kunka, N., LaHurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Coz, S. Le, Leão, M. S. A. B., Lebrun, D., Lebrun, P., Oliveira, M. A. Leigui de, Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Agüera, A. Lopez, Louedec, K., Bahilo, J. Lozano, Lu, L., Lucero, A., Ludwig, M., Malacari, M., Maldera, S., Mallamaci, M., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Marsella, G., Martello, D., Martin, L., Martinez, H., Bravo, O. Martínez, Martraire, D., Meza, J. J. Masías, Mathes, H. J., Mathys, S., Matthews, J., Matthews, J. A. J., Matthiae, G., Maurel, D., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina-Tanco, G., Meissner, R., Melissas, M., Melo, D., Menshikov, A., Messina, S., Meyhandan, R., Mićanović, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina-Bueno, L., Mollerach, S., Monasor, M., Ragaigne, D. Monnier, Montanet, F., Morello, C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Müller, S., Münchmeyer, M., Mussa, R., Navarra, G., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Nguyen, P., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Olinto, A., Oliveira, M., Pacheco, N., Selmi-Dei, D. Pakk, Palatka, M., Pallotta, J., Palmieri, N., Papenbreer, P., Parente, G., Parra, A., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I. M., Perrone, L., Petermann, E., Peters, C., Petrera, S., Petrov, Y., Phuntsok, J., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Prado, R. R., Privitera, P., Prouza, M., Purrello, V., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Carvalho, W. Rodrigues de, Cabo, I. Rodriguez, Fernandez, G. Rodriguez, Rojo, J. Rodriguez, Rodríguez-Frías, M. D., Rogozin, D., Ros, G., Rosado, J., Rossler, T., Roth, M., Roulet, E., Rovero, A. C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Saleh, A., Greus, F. Salesa, Salina, G., Sánchez, F., Sanchez-Lucas, P., Santo, C. E., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, D., Schröder, F. G., Scholten, O., Schoorlemmer, H., Schovánek, P., Schulz, A., Schulz, J., Schumacher, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., kowski, A. Śmiał, Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Szuba, M., Taborda, O. A., Tapia, A., Tartare, M., Tepe, A., Theodoro, V. M., Timmermans, C., Peixoto, C. J. Todero, Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Elipe, G. Torralba, Machado, D. Torres, Travnicek, P., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Galicia, J. F. Valdés, Valiño, I., Valore, L., Aar, G. van, Bodegom, P. van, Berg, A. M. van den, Velzen, S. van, Vliet, A. van, Varela, E., Vargas Cárdenas, B., Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Widom, A., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yamamoto, T., Yapici, T., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zhou, J., Zhu, Y., Silva, M. Zimbres, Ziolkowski, M., and Zuccarello, F.

Published
2015
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12. Latest results of the Tunka Radio Extension

Author

Kostunin D., Bezyazeekov P.A., Budnev N.M., Fedorov O., Gress O.A., Haungs A., Hiller R., Huege T., Kazarina Y., Kleifges M., Korosteleva E.E., Krömer O., Kungel V., Kuzmichev L.A., Lubsandorzhiev N., Marshalkina T., Mirgazov R.R., Monkhoev R., Osipova E.A., Pakhorukov A., Pankov L., Prosin V.V., Rubtsov G.I., Schröder F.G., Wischnewski R., and Zagorodnikov A.

Subjects
Physics, QC1-999
Abstract

The Tunka Radio Extension (Tunka-Rex) is an antenna array consisting of 63 antennas at the location of the TAIGA facility (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) in Eastern Siberia, nearby Lake Baikal. Tunka-Rex is triggered by the air-Cherenkov array Tunka-133 during clear and moonless winter nights and by the scintillator array Tunka-Grande during the remaining time. Tunka-Rex measures the radio emission from the same air-showers as Tunka-133 and Tunka-Grande, but with a higher threshold of about 100 PeV. During the first stages of its operation, Tunka-Rex has proven, that sparse radio arrays can measure air-showers with an energy resolution of better than 15% and the depth of the shower maximum with a resolution of better than 40 g/cm2. To improve and interpret our measurements as well as to study systematic uncertainties due to interaction models, we perform radio simulations with CORSIKA and CoREAS. In this overview we present the setup of Tunka-Rex, discuss the achieved results and the prospects of mass-composition studies with radio arrays.

Published
2017
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13. Tunka-Rex: Status, Plans, and Recent Results

Author

Schröder F. G., Bezyazeekov P. A., Budnev N. M., Fedorov O., Gress O. A., Haungs A., Hiller R., Huege T., Kazarina Y., Kleifges M., Korosteleva E. E., Kostunin D., Krömer O., Kungel V., Kuzmichev L. A., Lubsandorzhiev N., Mirgazov R. R., Monkhoev R., Osipova E. A., Pakhorukov A., Pankov L., Prosin V.V, Rubtsov G. I., Wischnewski R., and Zagorodnikov A.

Subjects
Physics, QC1-999
Abstract

Tunka-Rex, the Tunka Radio extension at the TAIGA facility (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) in Siberia, has recently been expanded to a total number of 63 SALLA antennas, most of them distributed on an area of one square kilometer. In the first years of operation, Tunka-Rex was solely triggered by the co-located air-Cherenkov array Tunka-133. The correlation of the measurements by both detectors has provided direct experimental proof that radio arrays can measure the position of the shower maximum. The precision achieved so far is 40 g/cm2, and several methodical improvements are under study. Moreover, the cross-comparison of Tunka-Rex and Tunka-133 shows that the energy reconstruction of Tunka-Rex is precise to 15 %, with a total accuracy of 20 % including the absolute energy scale. By using exactly the same calibration source for Tunka-Rex and LOPES, the energy scale of their host experiments, Tunka-133 and KASCADE-Grande, respectively, can be compared even more accurately with a remaining uncertainty of about 10 %. The main goal of Tunka-Rex for the next years is a study of the cosmic-ray mass composition in the energy range above 100 PeV: For this purpose, Tunka-Rex now is triggered also during daytime by the particle detector array Tunka-Grande featuring surface and underground scintillators for electron and muon detection.

Published
2017
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14. Tunka-Rex: energy reconstruction with a single antenna station

Author

Hiller R., Bezyazeekov P. A., Budnev N. M., Fedorov O., Gress O. A., Haungs A., Huege T., Kazarina Y., Kleifges M., Korosteleva E. E., Kostunin D., Krömer O., Kungel V., Kuzmichev L. A., Lubsandorzhiev N., Mirgazov R. R., Monkhoev R., Osipova E. A., Pakhorukov A., Pankov L., Prosin V. V., Rubtsov G. I., Schröder F. G., Wischnewski R., and Zagorodnikov A.

Subjects
Physics, QC1-999
Abstract

The Tunka-Radio extension (Tunka-Rex) is a radio detector for air showers in Siberia. From 2012 to 2014, Tunka-Rex operated exclusively together with its host experiment, the air-Cherenkov array Tunka-133, which provided trigger, data acquisition, and an independent air-shower reconstruction. It was shown that the air-shower energy can be reconstructed by Tunka-Rex with a precision of 15% for events with signal in at least 3 antennas, using the radio amplitude at a distance of 120 m from the shower axis as an energy estimator. Using the reconstruction from the host experiment Tunka-133 for the air-shower geometry (shower core and direction), the energy estimator can in principle already be obtained with measurements from a single antenna, close to the reference distance. We present a method for event selection and energy reconstruction, requiring only one antenna, and achieving a precision of about 20%. This method increases the effective detector area and lowers thresholds for zenith angle and energy, resulting in three times more events than in the standard reconstruction.

Published
2017
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15. Towards a cosmic-ray mass-composition study at Tunka Radio Extension

Author

Kostunin D., Bezyazeekov P. A., Budnev N. M., Fedorov O., Gress O. A., Haungs A., Hiller R., Huege T, Kazarina Y, Kleifges M., Korosteleva E. E., Krömer O., Kungel V, Kuzmichev L. A., Lubsandorzhiev N., Mirgazov R. R., Monkhoev R., Osipova E. A., Pakhorukov A., Pankov L., Prosin V. V, Rubtsov G. I., Schröder F. G., Wischnewski R., and Zagorodnikov A.

Subjects
Physics, QC1-999
Abstract

The Tunka Radio Extension (Tunka-Rex) is a radio detector at the TAIGA facility located in Siberia nearby the southern tip of Lake Baikal. Tunka-Rex measures air-showers induced by high-energy cosmic rays, in particular, the lateral distribution of the radio pulses. The depth of the air-shower maximum, statistically depends on the mass of the primary particle, is determined from the slope of the lateral distribution function (LDF). Using a model-independent approach, we have studied possible features of the one-dimensional slope method and tried to find improvements for the reconstruction of primary mass. To study the systematic uncertainties given by different primary particles, we have performed simulations using the CONEX and CoREAS software packages of the recently released CORSIKA v7.5 including the modern high-energy hadronic models QGSJet-II.04 and EPOS-LHC. The simulations have shown that the largest systematic uncertainty in the energy deposit is due to the unknown primary particle. Finally, we studied the relation between the polarization and the asymmetry of the LDF.

Published
2017
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16. The InSight HP³ Penetrator (Mole) on Mars: Soil Properties Derived From the Penetration Attempts and Related Activities

Author

Spohn, Tilman, Hudson, Troy L., Marteau, Eloïse, Golombek, Matthew, Grott, Matthias, Wippermann, Torben, Ali, Khaled S., Schmelzbach, Cédric, Kedar, Sharon, Hurst, Kenneth, Trebi-Ollennu, Ashitey, Ansan, Véronique, Garvin, James, Knollenberg, Jörg, Müller, N., Piqueux, Sylvain, Lichtenheldt, Roy, Krause, Christian, Fantinati, Cinzia, Brinkman, Nienke, Sollberger, David, Delage, Pierre, Vrettos, Christos, Reershemius, Siebo, Wisniewski, Lukasz, Grygorczuk, Jurek, Robertsson, Johan O.A., Edme, Pascal, Andersson, Fredrik, Krömer, O., Lognonné, Philippe, Giardini, Domenico, Smrekar, Suz̀anne E., and Banerdt, William B.

Subjects
record of operating a penetrator on Mars, martian soil mechanical and thermal properties, Homestead Hollow near surface structure
Abstract

The NASA InSight Lander on Mars includes the Heat Flow and Physical Properties Package HP3 to measure the surface heat flow of the planet. The package uses temperature sensors that would have been brought to the target depth of 3--5 m by a small penetrator, nicknamed the mole. The mole requiring friction on its hull to balance remaining recoil from its hammer mechanism did not penetrate to the targeted depth. Instead, by precessing about a point midway along its hull, it carved a 7 cm deep and 5-6 cm wide pit and reached a depth of initially 31 cm. The root cause of the failure - as was determined through an extensive, almost two years long campaign - was a lack of friction in an unexpectedly thick cohesive duricrust. During the campaign -- described in detail in this paper -- the mole penetrated further aided by friction applied using the scoop at the end of the robotic Instrument Deployment Arm and by direct support by the latter. The mole finally reached a depth of 40 cm, bringing the mole body 1--2 cm below the surface. The penetration record of the mole and its thermal sensors were used to measure thermal and mechanical soil parameters such as the thermal conductivity and the penetration resistance of the duricrust and its cohesion. The hammerings of the mole were recorded by the seismometer SEIS and the signals could be used to derive a P-wave velocity and a S-wave velocity and elastic moduli representative of the topmost tens of cm of the regolith. The combined data were used to derive a model of the regolith that has an about 20 cm thick duricrust underneath a 1 cm thick unconsolidated layer of sand mixed with dust and above another 10 cm of unconsolidated sand. Underneath the latter, a layer more resistant to penetration and possibly consisting of debris from a small impact crater is inferred., arXiv

Published
2021
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17. Final results of the LOPES radio interferometer for cosmic-ray air showers

Author

Apel, W. D., Arteaga-Velázquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Cantoni, E., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Nehls, S., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J. A., Collaboration, LOPES, Apel, W. D., Arteaga-Velázquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Cantoni, E., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Nehls, S., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J. A., and Collaboration, LOPES

Abstract

LOPES, the LOFAR prototype station, was an antenna array for cosmic-ray air showers operating from 2003 - 2013 within the KASCADE-Grande experiment. Meanwhile, the analysis is finished and the data of air-shower events measured by LOPES are available with open access in the KASCADE Cosmic Ray Data Center (KCDC). This article intends to provide a summary of the achievements, results, and lessons learned from LOPES. By digital, interferometric beamforming the detection of air showers became possible in the radio-loud environment of the Karlsruhe Institute of Technology (KIT). As a prototype experiment, LOPES tested several antenna types, array configurations and calibration techniques, and pioneered analysis methods for the reconstruction of the most important shower parameters, i.e., the arrival direction, the energy, and mass-dependent observables such as the position of the shower maximum. In addition to a review and update of previously published results, we also present new results based on end-to-end simulations including all known instrumental properties. For this, we applied the detector response to radio signals simulated with the CoREAS extension of CORSIKA, and analyzed them in the same way as measured data. Thus, we were able to study the detector performance more accurately than before, including some previously inaccessible features such as the impact of noise on the interferometric cross-correlation beam. These results led to several improvements, which are documented in this paper and can provide useful input for the design of future cosmic-ray experiments based on the digital radio-detection technique., Comment: Accepted for publication by EPJ C

Published
2021
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19. Detection and imaging of atmospheric radio flashes from cosmic ray air showers

Author

Falcke, H., Apel, W. D., Badea, A. F., Bähren, L., Bekk, K., Bercuci, A., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Buitink, S., Brüggemann, M., Buchholz, P., Butcher, H., Chiavassa, A., Daumiller, K., de Bruyn, A. G., de Vos, C. M., Di Pierro, F., Doll, P., Engel, R., Gemmeke, H., Ghia, P. L., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huege, T., Kampert, K.-H., Kant, G. W., Klein, U., Kolotaev, Y., Koopman, Y., Krömer, O., Kuijpers, J., Lafebre, S., Maier, G., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Nigl, A., Obenland, R., Oehlschläger, J., Ostapchenko, S., Over, S., Pepping, H. J., Petcu, M., Petrovic, J., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Schoonderbeek, G., Sima, O., Stümpert, M., Toma, G., Trinchero, G. C., Ulrich, H., Valchierotti, S., van Buren, J., van Cappellen, W., Walkowiak, W., Weindl, A., Wijnholds, S., Wochele, J., Zabierowski, J., Zensus, J. A., and Zimmermann, D.

Published
2005

20. Observation of microwave emission from extensive air showers with CROME

Author

Wilczyński H., Werner F., Weber M., Unger M., Stasielak J., Schieler H., Salamida F., Riegel M., Roth M., Rautenberg J., Pekala J., Neunteufel P., Mathys S., Ludwig M., Krömer O., Kleifges M., Kampert K.-H., Klages H., Huege T., Haungs A., Engel R., Chiavassa A., Blümer J., Bertaina M., Baur S., Šmída R., and Wochele J.

Subjects
Physics, QC1-999
Abstract

We report on the measurement of microwave radio signals from air showers with the CROME (Cosmic Ray Observation via Microwave Emission) experiment. CROME is located in the center of the KASCADE-Grande air shower array. The radio signals of the CROME antennas are stored for each high-energy trigger from the KASCADE-Grande array and matched offine with the KASCADE-Grande data. After almost one year of data taking microwave signals have been observed for more than ten air showers.

Published
2013
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21. Radar reflection off extensive air showers

Author

Werner F., Wilczyński H., Weber M., Unger M., Šmída R., Schieler H., Salamida F., Riegel M., Roth M., Rautenberg J., Pekala J., Neunteufel P., Ludwig M., Mathys S., Kleifges M., Krömer O., Klages H., Kampert K.-H., Huege T., Haungs A., Engel R., Chiavassa A., Blümer J., Bertaina M., Baur S., Stasielak J., and Wochele J.

Subjects
Physics, QC1-999
Abstract

We investigate the possibility of detecting extensive air showers by the radar technique. Considering a bistatic radar system and different shower geometries, we simulate reflection of radio waves off the static plasma produced by the shower in the air. Using the Thomson cross-section for radio wave reflection, we obtain the time evolution of the signal received by the antennas. The frequency upshift of the radar echo and the power received are studied to verify the feasibility of the radar detection technique.

Published
2013
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22. Measurement of the muon production depths at the Pierre Auger Observatory

Author

Aab, A., Abreu, P., Aglietta, M., Ahn, E. J., Al Samarai, I., Albuquerque, I. F. M., Allekotte, I., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anastasi, G. A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Awal, N., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Billoir, P., Blaess, S. G., Blanco, A., Blanco, M., Blazek, J., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Borodai, N., Brack, J., Brancus, I., Bretz, T., Bridgeman, A., Brogueira, P., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Coleman, A., Collica, L., Conceição, R., Contreras, F., Cooper, M. J., Cordier, A., Coutu, S., Covault, C. E., Cronin, J., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., de Jong, S. J., De Mauro, G., de Mello Neto, J. R. T., de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Díaz Castro, M. L., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dorofeev, A., Dorosti Hasankiadeh, Q., dos Anjos, R. C., Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Freire, M. M., Fujii, T., García, B., García Gámez, D., Garcia Pinto, D., Gate, F., Gemmeke, H., Gherghel Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Głas, D., Glaser, C., Glass, H., Golup, G., Gómez Berisso, M., Gómez Vitale, P. F., González, N., Gookin, B., Gordon, J., Gorgi, A., Gorham, P., Gouffon, P., Griffith, N., Grillo, A. F., Grubb, T. D., Guarino, F., Guedes, G. P., Hampel, M. R., Hansen, P., Harari, D., Harrison, T. A., Hartmann, S., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Hemery, N., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Jandt, I., Jansen, S., Jarne, C., Johnsen, J. A., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kuempel, D., Kukec Mezek, G., Kunka, N., Kuotb Awad, A. W., Lahurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Le Coz, S., Lebrun, D., Lebrun, P., Leigui de Oliveira, M. A., Letessier Selvon, A., Lhenry Yvon, I., Link, K., Lopes, L., López, R., López Casado, A., Louedec, K., Lucero, A., Malacari, M., Maldera, S., Mallamaci, M., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Martin, L., Martinez, H., Martínez Bravo, O., Martraire, D., Masías Meza, J. J., Mathes, H. J., Mathys, S., Matthews, J., Matthews, J. A. J., Matthiae, G., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina Tanco, G., Meissner, R., Mello, V. B. B., Melo, D., Menshikov, A., Messina, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina Bueno, L., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Müller, S., Mussa, R., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Nguyen, P. H., Niculescu Oglinzanu, M., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Núñez, L. A., Ochilo, L., Oikonomou, F., Olinto, A., Pacheco, N., Pakk Selmi Dei, D., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Paul, T., Pech, M., Pękala, J., Pelayo, R., Pepe, I. M., Petermann, E., Peters, C., Petrera, S., Petrov, Y., Phuntsok, J., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Prado, R. R., Privitera, P., Prouza, M., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Reinert, D., Revenu, B., Ridky, J., Risse, M., Ristori, P., Rizi, V., Rodrigues de Carvalho, W., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez Frías, M. D., Rogozin, D., Rosado, J., Roth, M., Roulet, E., Rovero, A. C., Saffi, S. J., Saftoiu, A., Salamida, F., C, Salazar, H., Saleh, A., Salesa Greus, F., Salina, G., Sanabria Gomez, J. D., Sánchez, F., Sanchez Lucas, P., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sarmiento Cano, C., Sato, R., Scarso, C., Schauer, M., Scherini, V., Schieler, H., Schmidt, D., Scholten b, O., Schoorlemmer, H., Schovánek, P., Schröder, F. G., Schulz, A., Schulz, J., Schumacher, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., Śmiałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanca, D., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suarez Durán, M., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Taborda, O. A., Tapia, A., Tepe, A., Theodoro, V. M., Timmermans, C., Todero Peixoto, C. J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Trini, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. F., Valiño, I., Valore, L., van Aar, G., van Bodegom, P., van den Berg, A. M., van Velzen, S., van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vasquez, R., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson a, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Widom, A., Wiencke, L., Wilczyński, H., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yang, L., Yapici, T., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zepeda, A., Zimmermann, B., Ziolkowski, M., Zuccarello, F., BLEVE, Carla, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, Aab, A., Abreu, P., Aglietta, M., Ahn, E. J., Al Samarai, I., Albuquerque, I. F. M., Allekotte, I., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anastasi, G. A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Awal, N., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Billoir, P., Blaess, S. G., Blanco, A., Blanco, M., Blazek, J., Bleve, Carla, Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Borodai, N., Brack, J., Brancus, I., Bretz, T., Bridgeman, A., Brogueira, P., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Coleman, A., Collica, L., Coluccia, MARIA RITA, Conceição, R., Contreras, F., Cooper, M. J., Cordier, A., Coutu, S., Covault, C. E., Cronin, J., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., de Jong, S. J., De Mauro, G., de Mello Neto, J. R. T., DE MITRI, Ivan, de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Díaz Castro, M. L., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dorofeev, A., Dorosti Hasankiadeh, Q., dos Anjos, R. C., Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Freire, M. M., Fujii, T., García, B., García Gámez, D., Garcia Pinto, D., Gate, F., Gemmeke, H., Gherghel Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Głas, D., Glaser, C., Glass, H., Golup, G., Gómez Berisso, M., Gómez Vitale, P. F., González, N., Gookin, B., Gordon, J., Gorgi, A., Gorham, P., Gouffon, P., Griffith, N., Grillo, A. F., Grubb, T. D., Guarino, F., Guedes, G. P., Hampel, M. R., Hansen, P., Harari, D., Harrison, T. A., Hartmann, S., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Hemery, N., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Jandt, I., Jansen, S., Jarne, C., Johnsen, J. A., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kuempel, D., Kukec Mezek, G., Kunka, N., Kuotb Awad, A. W., Lahurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Le Coz, S., Lebrun, D., Lebrun, P., Leigui de Oliveira, M. A., Letessier Selvon, A., Lhenry Yvon, I., Link, K., Lopes, L., López, R., López Casado, A., Louedec, K., Lucero, A., Malacari, M., Maldera, S., Mallamaci, M., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Marsella, Giovanni, Martello, Daniele, Martin, L., Martinez, H., Martínez Bravo, O., Martraire, D., Masías Meza, J. J., Mathes, H. J., Mathys, S., Matthews, J., Matthews, J. A. J., Matthiae, G., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina Tanco, G., Meissner, R., Mello, V. B. B., Melo, D., Menshikov, A., Messina, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina Bueno, L., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Müller, S., Mussa, R., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Nguyen, P. H., Niculescu Oglinzanu, M., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Núñez, L. A., Ochilo, L., Oikonomou, F., Olinto, A., Pacheco, N., Pakk Selmi Dei, D., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Paul, T., Pech, M., Pękala, J., Pelayo, R., Pepe, I. M., Perrone, Lorenzo, Petermann, E., Peters, C., Petrera, S., Petrov, Y., Phuntsok, J., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Prado, R. R., Privitera, P., Prouza, M., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Reinert, D., Revenu, B., Ridky, J., Risse, M., Ristori, P., Rizi, V., Rodrigues de Carvalho, W., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez Frías, M. D., Rogozin, D., Rosado, J., Roth, M., Roulet, E., Rovero, A. C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Saleh, A., Salesa Greus, F., Salina, G., Sanabria Gomez, J. D., Sánchez, F., Sanchez Lucas, P., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sarmiento Cano, C., Sato, R., Scarso, C., Schauer, M., Scherini, V., Schieler, H., Schmidt, D., Scholten b, O., Schoorlemmer, H., Schovánek, P., Schröder, F. G., Schulz, A., Schulz, J., Schumacher, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., Śmiałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanca, D., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suarez Durán, M., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Taborda, O. A., Tapia, A., Tepe, A., Theodoro, V. M., Timmermans, C., Todero Peixoto, C. J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Trini, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. F., Valiño, I., Valore, L., van Aar, G., van Bodegom, P., van den Berg, A. M., van Velzen, S., van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vasquez, R., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson a, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Widom, A., Wiencke, L., Wilczyński, H., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yang, L., Yapici, T., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zepeda, A., Zimmermann, B., Ziolkowski, M., Zuccarello, F., Guarino, Fausto, Valore, Laura, and Colalillo, Roberta

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Auger, Nuclear physics, High Energy Physics - Experiment (hep-ex), Physics and Astronomy (all), Observatory, 0103 physical sciences, ultra-high energy cosmic rays, muon production depth, 010303 astronomy & astrophysics, Zenith, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Pierre Auger Observatory, Muon, 010308 nuclear & particles physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Observable, Muon collider, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The muon content of extensive air showers is an observable sensitive to the primary composition and to the hadronic interaction properties. The Pierre Auger Observatory uses water-Cherenkov detectors to measure particle densities at the ground and therefore is sensitive to the muon content of air showers. We present here a method which allows us to estimate the muon production depths by exploiting the measurement of the muon arrival times at the ground recorded with the Surface Detector of the Pierre Auger Observatory. The analysis is performed in a large range of zenith angles, thanks to the capability of estimating and subtracting the electromagnetic component, and for energies between $10^{19.2}$ and $10^{20}$ eV., Published version. Added journal reference and DOI. Added Report Number

Published
2016

23. Latest results of the Tunka Radio Extension

Author

Tunka-REX Collaboration, Kostunin, D., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Marshalkina, T., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., Zagorodnikov, A., and Pattison, B.

Subjects
Physics, ddc:530
Published
2017

24. Erratum: Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth (Physical Review D - Particles, Fields, Gravitation and Cosmology (2014) 90 (012012)

Author

Aab, A., Abreu, P., Aglietta, M., Ahlers, M., Ahn, E. J., Al Samarai, I., Albuquerque, I. F. M., Allekotte, I., Allen, J., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertou, X., Biermann, P. L., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brancus, I., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buscemi, M., Caballero Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Cheng, S. H., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Criss, A., Cronin, J., Curutiu, A., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., De Almeida, R. M., De Domenico, M., De Jong, S. J., De Mello Neto, J. R. T., De Mitri, I., De Oliveira, J., De Souza, V., Del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Díaz Castro, M. L., Diep, P. N., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dong, P. N., Dorofeev, A., Dorosti Hasankiadeh, Q., Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Facal San Luis, P., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Fröhlich, U., Fuchs, B., Fuji, T., Gaior, R., García, B., Garcia Roca, S. T., Garcia Gamez, D., Garcia Pinto, D., Garilli, G., Gascon Bravo, A., Gate, F., Gemmeke, H., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Glass, H., Gomez Albarracin, F., Gómez Berisso, M., Gómez Vitale, P. F., Gonçalves, P., Gonzalez, J. G., Gookin, B., Gorgi, A., Gorham, P., Gouffon, P., Grebe, S., Griffith, N., Grillo, A. F., Grubb, T. D., Guardincerri, Y., Guedes, G. P., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Islo, K., Jandt, I., Jansen, S., Jarne, C., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kruppke Hansen, D., Kuempel, D., Kunka, N., La Rosa, G., Lahurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Le Coz, S., Leão, M. S. A. B., Lebrun, D., Lebrun, P., Leigui De Oliveira, M. A., Letessier Selvon, A., Lhenry Yvon, I., Link, K., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M. C., Malacari, M., Maldera, S., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Marsella, G., Martello, D., Martin, L., Martinez, H., Martínez Bravo, O., Martraire, D., Masías Meza, J. J., Mathes, H. J., Mathys, S., Matthews, A. J., Matthews, J., Matthiae, G., Maurel, D., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Messina, S., Meyhandan, R., Mićanović, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina Bueno, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morello, C., Moreno, J. C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Olinto, A., Oliveira, M., Ortiz, M., Pacheco, N., Pakk Selmi Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Papenbreer, P., Parente, G., Parra, A., Pastor, S., Paul, T., Pech, M., Pkala, J., Pelayo, R., Pepe, I. M., Perrone, L., Pesce, R., Petermann, E., Peters, C., Petrera, S., Petrolini, A., Petrov, Y., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Prado, R. R., Privitera, P., Prouza, M., Purrello, V., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Roberts, J., Rodrigues De Carvalho, W., Rodriguez Cabo, I., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez Frías, M. D., Ros, G., Rosado, J., Rossler, T., Roth, M., Roulet, E., Rovero, A. C., Rühle, C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Saleh, A., Salesa Greus, F., Salina, G., Sánchez, F., Sanchez Lucas, P., Santo, C. E., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Scholten, O., Schoorlemmer, H., Schovánek, P., Schulz, A., Schulz, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., ͆miałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Szuba, M., Taborda, O. A., Tapia, A., Tartare, M., Thao, N. T., Theodoro, V. M., Tiffenberg, J., Timmermans, C., Todero Peixoto, C. J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. F., Valiño, I., Van Aar, G., Van Den Berg, A. M., Van Velzen, S., Van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Whelan, B. J., Widom, A., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zhou, J., Zhu, Y., Zimbres Silva, M., Ziolkowski, M., COLALILLO, ROBERTA, GUARINO, FAUSTO, VALORE, LAURA, Aab, A., Abreu, P., Aglietta, M., Ahlers, M., Ahn, E. J., Al Samarai, I., Albuquerque, I. F. M., Allekotte, I., Allen, J., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertou, X., Biermann, P. L., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brancus, I., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buscemi, M., Caballero Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Cheng, S. H., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, Roberta, Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Criss, A., Cronin, J., Curutiu, A., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., De Almeida, R. M., De Domenico, M., De Jong, S. J., De Mello Neto, J. R. T., De Mitri, I., De Oliveira, J., De Souza, V., Del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Díaz Castro, M. L., Diep, P. N., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dong, P. N., Dorofeev, A., Dorosti Hasankiadeh, Q., Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Facal San Luis, P., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Fröhlich, U., Fuchs, B., Fuji, T., Gaior, R., García, B., Garcia Roca, S. T., Garcia Gamez, D., Garcia Pinto, D., Garilli, G., Gascon Bravo, A., Gate, F., Gemmeke, H., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Glass, H., Gomez Albarracin, F., Gómez Berisso, M., Gómez Vitale, P. F., Gonçalves, P., Gonzalez, J. G., Gookin, B., Gorgi, A., Gorham, P., Gouffon, P., Grebe, S., Griffith, N., Grillo, A. F., Grubb, T. D., Guardincerri, Y., Guarino, Fausto, Guedes, G. P., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Islo, K., Jandt, I., Jansen, S., Jarne, C., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kruppke Hansen, D., Kuempel, D., Kunka, N., La Rosa, G., Lahurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Le Coz, S., Leão, M. S. A. B., Lebrun, D., Lebrun, P., Leigui De Oliveira, M. A., Letessier Selvon, A., Lhenry Yvon, I., Link, K., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M. C., Malacari, M., Maldera, S., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Marsella, G., Martello, D., Martin, L., Martinez, H., Martínez Bravo, O., Martraire, D., Masías Meza, J. J., Mathes, H. J., Mathys, S., Matthews, A. J., Matthews, J., Matthiae, G., Maurel, D., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Messina, S., Meyhandan, R., Mićanović, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina Bueno, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morello, C., Moreno, J. C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Olinto, A., Oliveira, M., Ortiz, M., Pacheco, N., Pakk Selmi Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Papenbreer, P., Parente, G., Parra, A., Pastor, S., Paul, T., Pech, M., Pkala, J., Pelayo, R., Pepe, I. M., Perrone, L., Pesce, R., Petermann, E., Peters, C., Petrera, S., Petrolini, A., Petrov, Y., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Prado, R. R., Privitera, P., Prouza, M., Purrello, V., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Roberts, J., Rodrigues De Carvalho, W., Rodriguez Cabo, I., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez Frías, M. D., Ros, G., Rosado, J., Rossler, T., Roth, M., Roulet, E., Rovero, A. C., Rühle, C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Saleh, A., Salesa Greus, F., Salina, G., Sánchez, F., Sanchez Lucas, P., Santo, C. E., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Scholten, O., Schoorlemmer, H., Schovánek, P., Schulz, A., Schulz, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., ͆miałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Szuba, M., Taborda, O. A., Tapia, A., Tartare, M., Thao, N. T., Theodoro, V. M., Tiffenberg, J., Timmermans, C., Todero Peixoto, C. J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. F., Valiño, I., Valore, Laura, Van Aar, G., Van Den Berg, A. M., Van Velzen, S., Van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Whelan, B. J., Widom, A., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zhou, J., Zhu, Y., Zimbres Silva, M., and Ziolkowski, M.

Subjects
Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous)
Published
2015

25. Improved measurements of the energy and shower maximum of cosmic rays with Tunka-Rex

Author

Kostunin, D., Bezyazeekov, P. A., Budnev, N. M., Chernykh, D., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Krömer, O., Kuzmichev, L. A., Lenok, V., Lubsandorzhiev, N., Marshalkina, T., Mirgazov, R. R., Monkhoev, R., Osipova, E., Pakhorukov, A., Pankov, L., Prosin, V. V., Schröder, F. G., Zagorodnikov, A., Kostunin, D., Bezyazeekov, P. A., Budnev, N. M., Chernykh, D., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Krömer, O., Kuzmichev, L. A., Lenok, V., Lubsandorzhiev, N., Marshalkina, T., Mirgazov, R. R., Monkhoev, R., Osipova, E., Pakhorukov, A., Pankov, L., Prosin, V. V., Schröder, F. G., and Zagorodnikov, A.

Abstract

The Tunka Radio Extension (Tunka-Rex) is an array of 63 antennas located in the Tunka Valley, Siberia. It detects radio pulses in the 30-80 MHz band produced during the air-shower development. As shown by Tunka-Rex, a sparse radio array with about 200 m spacing is able to reconstruct the energy and the depth of the shower maximum with satisfactory precision using simple methods based on parameters of the lateral distribution of amplitudes. The LOFAR experiment has shown that a sophisticated treatment of all individually measured amplitudes of a dense antenna array can make the precision comparable with the resolution of existing optical techniques. We develop these ideas further and present a method based on the treatment of time series of measured signals, i.e. each antenna station provides several points (trace) instead of a single one (amplitude or power). We use the measured shower axis and energy as input for CoREAS simulations: for each measured event we simulate a set of air-showers with proton, helium, nitrogen and iron as primary particle (each primary is simulated about ten times to cover fluctuations in the shower maximum due to the first interaction). Simulated radio pulses are processed with the Tunka-Rex detector response and convoluted with the measured signals. A likelihood fit determines how well the simulated event fits to the measured one. The positions of the shower maxima are defined from the distribution of chi-square values of these fits. When using this improved method instead of the standard one, firstly, the shower maximum of more events can be reconstructed, secondly, the resolution is increased. The performance of the method is demonstrated on the data acquired by the Tunka-Rex detector in 2012-2014., Comment: Proceedings of the 35th ICRC 2017, Busan, Korea

Published
2017

26. Detector efficiency and exposure of Tunka-Rex for cosmic-ray air showers

Author

Fedorov, O., Bezyazeekov, P. A., Budnev, N. M., Chernykh, D., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Lenok, V., Lubsandorzhiev, N., Marshalkina, T., Mirgazov, R. R., Monkhoev, R., Osipova, E., Pakhorukov, A., Pankov, L., Prosin, V. V., Schröder, F. G., Zagorodnikov, A., Fedorov, O., Bezyazeekov, P. A., Budnev, N. M., Chernykh, D., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Lenok, V., Lubsandorzhiev, N., Marshalkina, T., Mirgazov, R. R., Monkhoev, R., Osipova, E., Pakhorukov, A., Pankov, L., Prosin, V. V., Schröder, F. G., and Zagorodnikov, A.

Abstract

Tunka-Rex (Tunka Radio Extension) is an antenna array for cosmic-ray detection located in Siberia. Previous studies of cosmic rays with Tunka-Rex have shown high precision in determining the energy of the primary particle and the possibility to reconstruct the depth of the shower maximum. The next step is the reconstruction of the mass composition and the energy spectrum of cosmic rays. One of the main problems appearing within this task is to estimate the detection efficiency of the instrument, and the exposure of the observations. The detection efficiency depends on properties of the primary cosmic rays, such as energy and arrival direction, as well as on many parameters of the instrument: density of the array, efficiency of the receiving antennas, signal-detection threshold, data-acquisition acceptance, and trigger properties. More than that, the configuration of detector changes with time. During the measurements some parts of the detector can provide corrupted data or sometimes do not operate. All these features should be taken into account for an estimation of the detection efficiency. For each energy and arrival direction we estimate the detection probability and effective area of the instrument. To estimate the detection probability of a shower we use a simple Monte Carlo model, which predicts the size of the footprint of the radio emission as function of the primary energy and arrival direction (taking into account the geometry of Earth's magnetic field). Combining these approaches we calculate the event statistics and exposure for each run. This is the first accurate study of the exposure for irregular large-scale radio arrays taking into account most important features of detection, which will be used for the measurement of primary cosmic-ray spectra with Tunka-Rex., Comment: Proceedings of the 35th ICRC 2017, Busan, Korea

Published
2017

27. Latest results of the Tunka Radio Extension (ISVHECRI2016)

Author

Kostunin, D., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Marshalkina, T., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., Zagorodnikov, A., Kostunin, D., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Marshalkina, T., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Abstract

The Tunka Radio Extension (Tunka-Rex) is an antenna array consisting of 63 antennas at the location of the TAIGA facility (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) in Eastern Siberia, nearby Lake Baikal. Tunka-Rex is triggered by the air-Cherenkov array Tunka-133 during clear and moonless winter nights and by the scintillator array Tunka-Grande during the remaining time. Tunka-Rex measures the radio emission from the same air-showers as Tunka-133 and Tunka-Grande, but with a higher threshold of about 100 PeV. During the first stages of its operation, Tunka-Rex has proven, that sparse radio arrays can measure air-showers with an energy resolution of better than 15\% and the depth of the shower maximum with a resolution of better than 40 g/cm\textsuperscript{2}. To improve and interpret our measurements as well as to study systematic uncertainties due to interaction models, we perform radio simulations with CORSIKA and CoREAS. In this overview we present the setup of Tunka-Rex, discuss the achieved results and the prospects of mass-composition studies with radio arrays., Comment: proceedings of ISVHECRI2016 conference

Published
2017
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28. Radio measurements of the energy and the depth of the shower maximum of cosmic-ray air showers by Tunka-Rex

Author

Bezyazeekov, P. A., Budnev, N. M., Kostunin, D., Krömer, O., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Gress, O. A., Schröder, F. G., Wischnewski, R., Zagorodnikov, A., Tunka-Rex Collaboration, Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Konstantinov, E. N., and Korosteleva, E. E.

Subjects
Photomultiplier, Physics::Instrumentation and Detectors, air, splitting, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, FOS: Physical sciences, Cosmic ray, ultra high energy cosmic rays, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Calibration, ddc:530, 010306 general physics, relativistic [electron], numerical calculations, Instrumentation and Methods for Astrophysics (astro-ph.IM), Absolute scale, Monte Carlo, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, photomultiplier, 010308 nuclear & particles physics, resolution, Astronomy and Astrophysics, showers, calibration, Computational physics, moment, Amplitude, cosmic radiation, correlation, Moment (physics), atmosphere, cosmic rays detectors, cosmic ray experiments, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Energy (signal processing)
Abstract

We reconstructed the energy and the position of the shower maximum of air showers with energies $E \gtrsim 100 $PeV applying a method using radio measurements performed with Tunka-Rex. An event-to-event comparison to air-Cherenkov measurements of the same air showers with the Tunka-133 photomultiplier array confirms that the radio reconstruction works reliably. The Tunka-Rex reconstruction methods and absolute scales have been tuned on CoREAS simulations and yield energy and $X_{\mathrm{max}}$ values consistent with the Tunka-133 measurements. The results of two independent measurement seasons agree within statistical uncertainties, which gives additional confidence in the radio reconstruction. The energy precision of Tunka-Rex is comparable to the Tunka-133 precision of $15 %$, and exhibits a $20 %$ uncertainty on the absolute scale dominated by the amplitude calibration of the antennas. For $X_{\mathrm{max}}$, this is the first direct experimental correlation of radio measurements with a different, established method. At the moment, the $X_{\mathrm{max}}$ resolution of Tunka-Rex is approximately $40 $g/cm$^2$. This resolution can probably be improved by deploying additional antennas and by further development of the reconstruction methods, since the present analysis does not yet reveal any principle limitations., Comment: accepted for publication by JCAP

Published
2016
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29. Tunka-Rex: energy reconstruction with a single antenna station (ARENA 2016)

Author

Hiller, R., Bezyazeekov, P. A., Fedorov, N. M. Budnev, Gress, O. A., Haungs, A., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The Tunka-Radio extension (Tunka-Rex) is a radio detector for air showers in Siberia. From 2012 to 2014, Tunka-Rex operated exclusively together with its host experiment, the air-Cherenkov array Tunka-133, which provided trigger, data acquisition, and an independent air-shower reconstruction. It was shown that the air-shower energy can be reconstructed by Tunka-Rex with a precision of 15\% for events with signal in at least 3 antennas, using the radio amplitude at a distance of 120\,m from the shower axis as an energy estimator. Using the reconstruction from the host experiment Tunka-133 for the air-shower geometry (shower core and direction), the energy estimator can in principle already be obtained with measurements from a single antenna, close to the reference distance. We present a method for event selection and energy reconstruction, requiring only one antenna, and achieving a precision of about 20\%. This method increases the effective detector area and lowers thresholds for zenith angle and energy, resulting in three times more events than in the standard reconstruction.

Published
2016
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30. The Pierre Auger Observatory Upgrade - Preliminary Design Report

Author

The Pierre Auger Collaboration, Aab, A., Abreu, P., AGLIETTA, MARCO, Ahn, E. J., Samarai, I. Al, Albuquerque, I. F. M., Allekotte, I., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez-Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Awal, N., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Billoir, P., Blaess, S. G., Blanco, A., Blanco, M., Blazek, J., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Borodai, N., Brack, J., Brancus, I., Bridgeman, A., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero-Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., CASTELLINA, ANTONELLA, Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Coleman, A., Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Cordier, A., Coutu, S., Covault, C. E., Cronin, J., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., de Jong, S. J., De Mauro, G., de Mello Neto, J. R. T., De Mitri, I., de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Díaz Castro, M. L., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dorofeev, A., Dorosti Hasankiadeh, Q., Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Freire, M. M., Fuchs, B., Fujii, T., García, B., Garcia-Pinto, D., Gate, F., Gemmeke, H., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Głas, D., Glaser, C., Glass, H., Golup, G., Gómez Berisso, M., Gómez Vitale, P. F., González, N., Gookin, B., Gordon, J., GORGI, Alessio, Gorham, P., Gouffon, P., Griffith, N., Grillo, A. F., Grubb, T. D., Guarino, F., Guedes, G. P., Hampel, M. R., Hansen, P., Harari, D., Harrison, T. A., Hartmann, S., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Hemery, N., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Jandt, I., Jansen, S., Jarne, C., Johnsen, J. A., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kuempel, D., Kukec Mezek, G., Kunka, N., LaHurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Le Coz, S., Lebrun, D., Lebrun, P., Leigui de Oliveira, M. A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., Lopes, L., López, R., López Casado, A., Louedec, K., Lu, L., Lucero, A., Malacari, M., Maldera, S., Mallamaci, M., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariș, I. C., Marsella, G., Martello, D., Martin, L., Martinez, H., Martínez Bravo, O., Martraire, D., Masías Meza, J. J., Mathes, H. J., Mathys, S., Matthews, J., Matthews, J. A. J., Matthiae, G., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina-Tanco, G., Meissner, R., Mello, V. B. B., Melo, D., Menshikov, A., MESSINA, Sergio, Meyhandan, R., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina-Bueno, L., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Müller, S., Mussa, R., Navarra, G., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Nguyen, P. H., Niculescu-Oglinzanu, M., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Oikonomou, F., Olinto, A., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I. M., Perrone, L., Petermann, E., Peters, C., Petrera, S., Petrov, Y., Phuntsok, J., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Prado, R. R., Privitera, P., Prouza, M., Purrello, V., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Reinert, D., Revenu, B., Ridky, J., RIGGI, Simone, Risse, M., Ristori, P., Rizi, V., Rodrigues de Carvalho, W., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez-Frías, M. D., Rogozin, D., Rosado, J., Roth, M., Roulet, E., Rovero, A. C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Saleh, A., Salesa Greus, F., Salina, G., Sánchez, F., Sanchez-Lucas, P., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scarso, C., Schauer, M., Scherini, V., Schieler, H., Schmidt, D., Scholten, O., Schoorlemmer, H., Schovánek, P., Schröder, F. G., Schulz, A., Schulz, J., Schumacher, J., Sciutto, S. J., SEGRETO, ALBERTO, Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., Śmiałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanca, D., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Taborda, O. A., Tapia, A., Tepe, A., Theodoro, V. M., Timmermans, C., Todero Peixoto, C. J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Trini, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. F., Valiño, I., Valore, L., van Aar, G., van Bodegom, P., van den Berg, A. M., van Velzen, S., van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vasquez, R., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Widom, A., Wiencke, L., Wilczyński, H., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yang, L., Yapici, T., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zepeda, A., Zhu, Y., Zimmermann, B., Ziolkowski, M., Zong, Z., and Zuccarello, Francesca

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment
Abstract

The Pierre Auger Observatory has begun a major Upgrade of its already impressive capabilities, with an emphasis on improved mass composition determination using the surface detectors of the Observatory. Known as AugerPrime, the upgrade will include new 4 m$^2$ plastic scintillator detectors on top of all 1660 water-Cherenkov detectors, updated and more flexible surface detector electronics, a large array of buried muon detectors, and an extended duty cycle for operations of the fluorescence detectors. This Preliminary Design Report was produced by the Collaboration in April 2015 as an internal document and information for funding agencies. It outlines the scientific and technical case for AugerPrime. We now release it to the public via the arXiv server. We invite you to review the large number of fundamental results already achieved by the Observatory and our plans for the future.

Published
2016

31. Towards a cosmic-ray mass-composition study at Tunka Radio Extension (ARENA 2016)

Author

Kostunin, D., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The Tunka Radio Extension (Tunka-Rex) is a radio detector at the TAIGA facility located in Siberia nearby the southern tip of Lake Baikal. Tunka-Rex measures air-showers induced by high-energy cosmic rays, in particular, the lateral distribution of the radio pulses. The depth of the air-shower maximum, which statistically depends on the mass of the primary particle, is determined from the slope of the lateral distribution function (LDF). Using a model-independent approach, we have studied possible features of the one-dimensional slope method and tried to find improvements for the reconstruction of primary mass. To study the systematic uncertainties given by different primary particles, we have performed simulations using the CONEX and CoREAS software packages of the recently released CORSIKA v7.5 including the modern high-energy hadronic models QGSJet-II.04 and EPOS-LHC. The simulations have shown that the largest systematic uncertainty in the energy deposit is due to the unknown primary particle. Finally, we studied the relation between the polarization and the asymmetry of the LDF., Comment: ARENA proceedings, 4 pages, updated references

Published
2016
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32. The Tunka radio extension (Tunka-Rex): Radio measurements of cosmic rays in Siberia

Author

Schröder, F. G., Bezyazeekov, P. A., Budnev, N. M., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Konstantinov, E. N., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Wischnewski, R., and Zagorodnikov, A.

Subjects
cosmic radiation: primary, observatory, radio wave, photomultiplier, air, statistics, site, Cherenkov, showers, Baikal, scintillation counter
Abstract

Nuclear instruments & methods in physics research / A 824, 652 - 654(2016). doi:10.1016/j.nima.2015.08.075, The Tunka observatory is located close to Lake Baikal in Siberia, Russia. Its main detector, Tunka-133, is an array of photomultipliers measuring Cherenkov light of air showers initiated by cosmic rays in the energy range of approximately 10$^{16}$−10$^{18}$ eV. In the last years, several extensions have been built at the Tunka site, e.g., a scintillator array named Tunka-Grande, a sophisticated air-Cherenkov-detector prototype named HiSCORE, and the radio extension Tunka-Rex. Tunka-Rex started operation in October 2012 and currently features 44 antennas distributed over an area of about 3km$^2$ , which measure the radio emission of the same air showers detected by Tunka-133 and Tunka-Grande. Tunka-Rex is a technological demonstrator that the radio technique can provide an economic extension of existing air-shower arrays. The main scientific goal is the cross-calibration with the air-Cherenkov measurements. By this cross-calibration, the precision for the reconstruction of the energy and mass of the primary cosmic-ray particles can be determined. Finally, Tunka-Rex can be used for cosmic-ray physics at energies close to 1 EeV, where the standard Tunka-133 analysis is limited by statistics. In contrast to the air-Cherenkov measurements, radio measurements are not limited to dark, clear nights and can provide an order of magnitude larger exposure., Published by North-Holland Publ. Co., Amsterdam

Published
2016
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34. Radio measurements of the energy and the depth of the shower maximum of cosmic-ray air showers by Tunka-Rex

Author

Bezyazeekov, P. A., Budnev, N. M., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Konstantinov, E. N., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Subjects
photomultiplier, air, splitting, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, resolution, electron: relativistic, showers, calibration, moment, cosmic radiation, correlation, atmosphere, numerical calculations, Monte Carlo
Abstract

Journal of cosmology and astroparticle physics 1601(01), 052 (2016). doi:10.1088/1475-7516/2016/01/052, We reconstructed the energy and the position of the shower maximum of air showers with energies E gtrsim 100 PeV applying a method using radio measurements performed with Tunka-Rex. An event-to-event comparison to air-Cherenkov measurements of the same air showers with the Tunka-133 photomultiplier array confirms that the radio reconstruction works reliably. The Tunka-Rex reconstruction methods and absolute scales have been tuned on CoREAS simulations and yield energy and X(max) values consistent with the Tunka-133 measurements. The results of two independent measurement seasons agree within statistical uncertainties, which gives additional confidence in the radio reconstruction. The energy precision of Tunka-Rex is comparable to the Tunka-133 precision of 15%, and exhibits a 20% uncertainty on the absolute scale dominated by the amplitude calibration of the antennas. For X(max), this is the first direct experimental correlation of radio measurements with a different, established method. At the moment, the X(max) resolution of Tunka-Rex is approximately 40 g/cm(2). This resolution can probably be improved by deploying additional antennas and by further development of the reconstruction methods, since the present analysis does not yet reveal any principle limitations., Published by IOP, London

Published
2015

36. The Tunka Radio Extension (Tunka-Rex): Radio Measurements of Cosmic Rays in Siberia (PISA 2015)

Author

Schröder, F. G., Bezyazeekov, P., Budnev, N. M., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Konstantinov, E. N., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Wischnewski, R., and Zagorodnikov, A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The Tunka observatory is located close to Lake Baikal in Siberia, Russia. Its main detector, Tunka-133, is an array of photomultipliers measuring Cherenkov light of air showers initiated by cosmic rays in the energy range of approximately $10^{16}-10^{18}\,$eV. In the last years, several extensions have been built at the Tunka site, e.g., a scintillator array named Tunka-Grande, a sophisticated air-Cherenkov-detector prototype named HiSCORE, and the radio extension Tunka-Rex. Tunka-Rex started operation in October 2012 and currently features 44 antennas distributed over an area of about $3\,$km$^2$, which measure the radio emission of the same air showers detected by Tunka-133 and Tunka-Grande. Tunka-Rex is a technological demonstrator that the radio technique can provide an economic extension of existing air-shower arrays. The main scientific goal is the cross-calibration with the air-Cherenkov measurements. By this cross-calibration, the precision for the reconstruction of the energy and mass of the primary cosmic-ray particles can be determined. Finally, Tunka-Rex can be used for cosmic-ray physics at energies close to $1\,$EeV, where the standard Tunka-133 analysis is limited by statistics. In contrast to the air-Cherenkov measurements, radio measurements are not limited to dark, clear nights and can provide an order of magnitude larger exposure., Comment: Accepted for publication in Nuclear Instruments and Methods A, within Proceedings of the 13th Pisa Meeting on Advanced Detectors 2015

Published
2015
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37. The amplitude calibration of the TUNKA radio extension (Tunka-Rex)

Author

Hiller, R., Bezyazeekov, P. A., Budnev, N. M., Gress, O. A., Haungs, A., Huege, T., Kazarina, Y., Kleifges, M., Konstantinov, E. N., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Miragazov, R. R., Pankov, L., Prosin, V. V., Rubtsov, G. I., Rühle, C., Savinov, V., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Subjects
Physics::Instrumentation and Detectors, Physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, ddc:530, Astrophysics::Cosmology and Extragalactic Astrophysics
Abstract

Tunka-Rex is an experiment for the radio detection of cosmic-ray air showers in Siberia. It consists of 25 radio antennas, distributed over an area of 1 km2. It is co-located with Tunka-133, an air-Cherenkov detector for cosmic-ray air showers. Triggered by Tunka-133, Tunka-Rex records the radio signal, emitted by air showers with energies above 1017 eV. Its goal is to probe the capabilities of a radio detector, especially for the determination of the energy and elemental composition of cosmic ray primaries. To compare the measurements of Tunka-Rex to other radio detectors or to models describing the radio emission, the radio signal in each station has to be reconstructed in terms of physical units. Therefore, all hardware components have to be calibrated. We show how the calibration is performed and compare it to simulations.

Published
2015
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38. Calibration of the absolute amplitude scale of the tunka radio extension (Tunka-Rex)

Author

Tunka-REX Collaboration, Hiller, R., Bezyazeekov, P. A., Budnev, N. M., Gress, O. A., Haungs, A., Huege, T., Kazarina, Y., Kleifges, M., Konstantinov, E. N., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Subjects
Physics, ddc:530
Published
2015

39. Investigation of the radio wavefront of air showers with LOPES measurements and CoREAS simulations (ARENA 2014)

Author

Schröder, F. G., Apel, W. D., Arteaga-Velazquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H, Kang, D., Krömer, O., Kuijpers, J., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Sima, O., Toma, G., Gian Carlo Trinchero, Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

We investigated the radio wavefront of cosmic-ray air showers with LOPES measurements and CoREAS simulations: the wavefront is of approximately hyperbolic shape and its steepness is sensitive to the shower maximum. For this study we used 316 events with an energy above 0.1 EeV and zenith angles below $45^\circ$ measured by the LOPES experiment. LOPES was a digital radio interferometer consisting of up to 30 antennas on an area of approximately 200 m x 200 m at an altitude of 110 m above sea level. Triggered by KASCADE-Grande, LOPES measured the radio emission between 43 and 74 MHz, and our analysis might strictly hold only for such conditions. Moreover, we used CoREAS simulations made for each event, which show much clearer results than the measurements suffering from high background. A detailed description of our result is available in our recent paper published in JCAP09(2014)025. The present proceeding contains a summary and focuses on some additional aspects, e.g., the asymmetry of the wavefront: According to the CoREAS simulations the wavefront is slightly asymmetric, but on a much weaker level than the lateral distribution of the radio amplitude., Comment: Proceedings of ARENA 2014, Anapolis, USA

Published
2015
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40. Status and First Results of Tunka-rex, an Experiment for the Radio Detection of Air Showers

Author

Hiller, R., Budnev, N. M., Kostunin, D., Krömer, O., Kuzmichev, L. A., Mirgazov, R. R., Pankov, L., Prosin, V. V., Rubtsov, G. I., Rühle, C., Schröder, F. G., Wischnewski, R., Gress, O. A., Zagorodnikov, A., Tunka-Rex Collaboration, Haungs, A., Huege, T., Kazarina, Y., Kleifges, M., Konstantinov, A., Konstantinov, E. N., and Korosteleva, E. E.

Subjects
Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, General Medicine, Scintillator, Physics and Astronomy(all), Radio, Tunka-Rex, Data acquisition, Earth's magnetic field, cosmic rays, Observatory, Scintillation counter, extensive air showers, ddc:530, Tunka, Remote sensing
Abstract

Tunka-Rex is a new radio detector for extensive air showers from cosmic rays, built in 2012 as an extension to Tunka-133. The latter is a non-imaging air-Cherenkov detector, located near Lake Baikal, Siberia. With its 25 radio antennas, Tunka-Rex extends over an area of 1 km2 with a spacing of 200 m and therefore is expected to be sensitive to an primary energy range of approximately 1017-1018 eV. Using Trigger and DAQ from Tunka-133, this setup allows for a hybrid analysis with the air-Cherenkov and radio technique combined. The main goals of Tunka-Rex are to investigate the achievable precision in the reconstruction of energy and composition of the primary cosmic rays by cross-calibrating to the well understood air-Cherenkov detector. While the focus in the first season was to understand the detector and calibrate the detector, an early analysis already proves the detection of air-shower events with dependencies on energy and arrival direction as expected from a geomagnetic emission mechanism. Furthermore, in near future tests will be conducted for a joint operation of Tunka-Rex with Tunka-HiSCORE, a prototype gamma ray observatory at the same site, and the upcoming scintillator extension of Tunka-133.

Published
2015
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41. A comparison of the cosmic-ray energy scales of Tunka-133 and KASCADE-Grande via their radio extensions Tunka-Rex and LOPES

Author

Apel, W.D., Arteaga-Velázquez, J.C., Bähren, L., Bezyazeekov, P.A., Bekk, K., Bertaina, M., Biermann, P.L., Blümer, J., Bozdog, H., Brancus, I.M., Budnev, N.M., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V. de, Pierro, F. Di, Doll, P., Engel, R., Falcke, H., Fedorov, O., Fuchs, B., Gemmeke, H., Gress, O.A., Grupen, C., Haungs, A., Heck, D., Hiller, R., Hörandel, J.R., Horneffer, A., Huber, D., Huege, T., Isar, P.G., Kampert, K.H., Kang, D., Kazarina, Y., Kleifges, M., Korosteleva, E.E., Kostunin, D., Krömer, O., Kuijpers, J.M.E., Kuzmichev, L.A., Link, K., Lubsandorzhiev, N., Łuczak, P., Ludwig, M., Mathes, H.J., Melissas, M., Mirgazov, R.R., Monkhoev, R., Morello, C., Oehlschläger, J., Osipova, E.A., Pakhorukov, A., Palmieri, N., Pankov, L., Pierog, T., Prosin, V.V., Rautenberg, J., Rebel, H., Roth, M., Rubtsov, G.I., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Weindl, A., Wischnewski, R., Wochele, J., Zabierowski, J., Zagorodnikov, A., Zensus, J.A., Apel, W.D., Arteaga-Velázquez, J.C., Bähren, L., Bezyazeekov, P.A., Bekk, K., Bertaina, M., Biermann, P.L., Blümer, J., Bozdog, H., Brancus, I.M., Budnev, N.M., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V. de, Pierro, F. Di, Doll, P., Engel, R., Falcke, H., Fedorov, O., Fuchs, B., Gemmeke, H., Gress, O.A., Grupen, C., Haungs, A., Heck, D., Hiller, R., Hörandel, J.R., Horneffer, A., Huber, D., Huege, T., Isar, P.G., Kampert, K.H., Kang, D., Kazarina, Y., Kleifges, M., Korosteleva, E.E., Kostunin, D., Krömer, O., Kuijpers, J.M.E., Kuzmichev, L.A., Link, K., Lubsandorzhiev, N., Łuczak, P., Ludwig, M., Mathes, H.J., Melissas, M., Mirgazov, R.R., Monkhoev, R., Morello, C., Oehlschläger, J., Osipova, E.A., Pakhorukov, A., Palmieri, N., Pankov, L., Pierog, T., Prosin, V.V., Rautenberg, J., Rebel, H., Roth, M., Rubtsov, G.I., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Weindl, A., Wischnewski, R., Wochele, J., Zabierowski, J., Zagorodnikov, A., and Zensus, J.A.

Abstract

Contains fulltext : 165990.pdf (publisher's version ) (Open Access)

Published
2016

42. Improved absolute calibration of LOPES measurements and its impact on the comparison with REAS 3.11 and CoREAS simulations

Author

Apel, W.D., Arteaga-Velázquez, J.C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P.L., Blümer, J., Bozdog, H., Brancus, I.M., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V. de, Pierro, F. Di, Doll, P., Engel, R., Falcke, H., Fuchs, B., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hiller, R., Hörandel, J.R., Horneffer, A., Huber, D., Huege, T., Isar, P.G., Kampert, K.H., Kang, D., Krömer, O., Kuijpers, Jan, Link, K., Łuczak, P., Ludwig, M., Mathes, H.J., Melissas, M., Morello, C., Nehls, S., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J.A., Apel, W.D., Arteaga-Velázquez, J.C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P.L., Blümer, J., Bozdog, H., Brancus, I.M., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V. de, Pierro, F. Di, Doll, P., Engel, R., Falcke, H., Fuchs, B., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hiller, R., Hörandel, J.R., Horneffer, A., Huber, D., Huege, T., Isar, P.G., Kampert, K.H., Kang, D., Krömer, O., Kuijpers, Jan, Link, K., Łuczak, P., Ludwig, M., Mathes, H.J., Melissas, M., Morello, C., Nehls, S., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J.A.

Abstract

Contains fulltext : 155766.pdf (preprint version ) (Open Access)

Published
2016

43. The Tunka-Rex Experiment for the Detection of the Air-Shower Radio Emission (ARENA 2014)

Author

Kazarina, Y., Bezyazeekov, P. A., Budnev, N. M., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kleifges, M., Konstantinov, E. N., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Mirgazov, R. R., Pankov, L., Prosin, V. V., Rubtsov, G. I., Rühle, C., Savinov, V., Schröder, F. G., Wischnewski, R., Zagorodnikov, A., Kazarina, Y., Bezyazeekov, P. A., Budnev, N. M., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kleifges, M., Konstantinov, E. N., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuzmichev, L. A., Mirgazov, R. R., Pankov, L., Prosin, V. V., Rubtsov, G. I., Rühle, C., Savinov, V., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Abstract

The Tunka-Rex experiment (Tunka Radio Extension) has been deployed in 2012 at the Tunka Valley (Republic of Buryatia, Russia). Its purpose is to investigate methods for the energy spectrum and the mass composition of high-energy cosmic rays based on the radio emission of air showers. Tunka-Rex is an array of 25 radio antennas distributed over an area of 3 km^2. The most important feature of the Tunka-Rex is that the air-shower radio emission is measured in coincidence with the Tunka-133 installation, which detects the Cherenkov radiation generated by the same atmospheric showers. Joint measurements of the radio emission and the Cherenkov light provide a unique opportunity for cross calibration of both calorimetric detection methods. The main goal of Tunka-Rex is to determine the precision for the reconstruction of air-shower parameters using the radio detection technique. In this article we present the current status of Tunka-Rex and first results, including reconstruction methods for parameters of the primary cosmic rays., Comment: 6 pages, 4 figures, Proceedings of ARENA 2014

Published
2016

44. Tunka-Rex: Status, Plans, and Recent Results (ARENA 2016)

Author

Schröder, F. G., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Wischnewski, R., Zagorodnikov, A., Schröder, F. G., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Wischnewski, R., and Zagorodnikov, A.

Abstract

Tunka-Rex, the Tunka Radio extension at the TAIGA facility (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) in Siberia, has recently been expanded to a total number 63 SALLA antennas, most of them distributed on an area of one square kilometer. In the first years of operation, Tunka-Rex was solely triggered by the co-located air-Cherenkov array Tunka-133. The correlation of the measurements by both detectors has provided direct experimental proof that radio arrays can measure the position of the shower maximum. The precision achieved so far is 40 g/cm^2, and several methodical improvements are under study. Moreover, the cross-comparison of Tunka-Rex and Tunka-133 shows that the energy reconstruction of Tunka-Rex is precise to 15 %, with a total accuracy of 20 % including the absolute energy scale. By using exactly the same calibration source for Tunka-Rex and LOPES, the energy scale of their host experiments, Tunka-133 and KASCADE-Grande, respectively, can be compared even more accurately with a remaining uncertainty of about 10 %. The main goal of Tunka-Rex for the next years is a study of the cosmic-ray mass composition in the energy range above 100 PeV: For this purpose, Tunka-Rex now is triggered also during daytime by the particle detector array Tunka-Grande featuring surface and underground scintillators for electron and muon detection., Comment: Proceedings of ARENA 2016

Published
2016
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45. A comparison of the cosmic-ray energy scales of Tunka-133 and KASCADE-Grande via their radio extensions Tunka-Rex and LOPES

Author

Apel, W. D., Arteaga-Velázquez, J. C., Bähren, L., Bezyazeekov, P. A., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Budnev, N. M., Cantoni, E., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fedorov, O., Fuchs, B., Gemmeke, H., Gress, O. A., Grupen, C., Haungs, A., Heck, D., Hiller, R., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuijpers, J., Kuzmichev, L. A., Link, K., Lubsandorzhiev, N., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Mirgazov, R. R., Monkhoev, R., Morello, C., Oehlschläger, J., Osipova, E. A., Pakhorukov, A., Palmieri, N., Pankov, L., Pierog, T., Prosin, V. V., Rautenberg, J., Rebel, H., Roth, M., Rubtsov, G. I., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weind, A., Wischnewski, R., Wochele, J., Zabierowski, J., Zagorodnikov, A., Zensus, J. A., Apel, W. D., Arteaga-Velázquez, J. C., Bähren, L., Bezyazeekov, P. A., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Budnev, N. M., Cantoni, E., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fedorov, O., Fuchs, B., Gemmeke, H., Gress, O. A., Grupen, C., Haungs, A., Heck, D., Hiller, R., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kuijpers, J., Kuzmichev, L. A., Link, K., Lubsandorzhiev, N., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Mirgazov, R. R., Monkhoev, R., Morello, C., Oehlschläger, J., Osipova, E. A., Pakhorukov, A., Palmieri, N., Pankov, L., Pierog, T., Prosin, V. V., Rautenberg, J., Rebel, H., Roth, M., Rubtsov, G. I., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weind, A., Wischnewski, R., Wochele, J., Zabierowski, J., Zagorodnikov, A., and Zensus, J. A.

Abstract

The radio technique is a promising method for detection of cosmic-ray air showers of energies around $100\,$PeV and higher with an array of radio antennas. Since the amplitude of the radio signal can be measured absolutely and increases with the shower energy, radio measurements can be used to determine the air-shower energy on an absolute scale. We show that calibrated measurements of radio detectors operated in coincidence with host experiments measuring air showers based on other techniques can be used for comparing the energy scales of these host experiments. Using two approaches, first via direct amplitude measurements, and second via comparison of measurements with air shower simulations, we compare the energy scales of the air-shower experiments Tunka-133 and KASCADE-Grande, using their radio extensions, Tunka-Rex and LOPES, respectively. Due to the consistent amplitude calibration for Tunka-Rex and LOPES achieved by using the same reference source, this comparison reaches an accuracy of approximately $10\,\%$ - limited by some shortcomings of LOPES, which was a prototype experiment for the digital radio technique for air showers. In particular we show that the energy scales of cosmic-ray measurements by the independently calibrated experiments KASCADE-Grande and Tunka-133 are consistent with each other on this level.

Published
2016
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46. The TAIGA experiment: from cosmic ray to gamma-ray astronomy in the Tunka valley

Author

Budnev, N, Astapov, I, Bezyazeekov, P, Bogdanov, A, Boreyko, V, Büker, M, Brückner, M, Chiavassa, A, Chvalaev, O, Gress, O, Gress, T, Grishin, O, Dyachok, A, Epimakhov, S, Fedorov, O, Gafarov, A, Gorbunov, N, Grebenyuk, V, Grinuk, A, Haungs, A, Hiller, R, Horns, D, Huege, T, Ivanova, A, Kalinin, A, Karpov, N, Kalmykov, N, Kazarina, Y, Kirichkov, N, Kiryuhin, S, Kleifges, M, Kokoulin, R, Komponiest, K, Konstantinov, A, Korosteleva, E, Kostunin, D, Kozhin, V, Krömer, O, Kunnas, M, Kuzmichev, L, Lenok, V, Lubsandorzhiev, B, Lubsandorzhiev, N, Mirgazov, R, Mirzoyan, R, Monkhoev, R, Nachtigall, R, Pakhorukov, A, Panasyuk, M, Pankov, L, Perevalov, A, Petrukhin, A, Platonov, V, Poleschuk, V, Popova, E, Porelli, A, Prosin, V, Ptuskin, V, Rubtsov, G, Pushnin, A, Samoliga, V, Satunin, P, Schröder, F, Semeney, Yu, Silaev, A, Skurikhin, A, Slucka, V, Spiering, C, Sveshnikova, L, Tabolenko, V, Tarashansky, B, Tkachenko, A, Tkachev, L, Tluczykont, M, Voronin, D, Wischnewski, R, Zagorodnikov, A, Zurbanov, V, Yashin, I, Budnev, N, Astapov, I, Bezyazeekov, P, Bogdanov, A, Boreyko, V, Büker, M, Brückner, M, Chiavassa, A, Chvalaev, O, Gress, O, Gress, T, Grishin, O, Dyachok, A, Epimakhov, S, Fedorov, O, Gafarov, A, Gorbunov, N, Grebenyuk, V, Grinuk, A, Haungs, A, Hiller, R, Horns, D, Huege, T, Ivanova, A, Kalinin, A, Karpov, N, Kalmykov, N, Kazarina, Y, Kirichkov, N, Kiryuhin, S, Kleifges, M, Kokoulin, R, Komponiest, K, Konstantinov, A, Korosteleva, E, Kostunin, D, Kozhin, V, Krömer, O, Kunnas, M, Kuzmichev, L, Lenok, V, Lubsandorzhiev, B, Lubsandorzhiev, N, Mirgazov, R, Mirzoyan, R, Monkhoev, R, Nachtigall, R, Pakhorukov, A, Panasyuk, M, Pankov, L, Perevalov, A, Petrukhin, A, Platonov, V, Poleschuk, V, Popova, E, Porelli, A, Prosin, V, Ptuskin, V, Rubtsov, G, Pushnin, A, Samoliga, V, Satunin, P, Schröder, F, Semeney, Yu, Silaev, A, Skurikhin, A, Slucka, V, Spiering, C, Sveshnikova, L, Tabolenko, V, Tarashansky, B, Tkachenko, A, Tkachev, L, Tluczykont, M, Voronin, D, Wischnewski, R, Zagorodnikov, A, Zurbanov, V, and Yashin, I

Abstract

The physical motivations and advantages of the new gamma-observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) is presented. The TAIGA array is a complex, hybrid detector for ground-based gamma-ray astronomy for energies from a few TeV to several PeV as well as for cosmic ray studies from 100 TeV to several EeV. The TAIGA will include the wide angle Cherenkov array TAIGA-HiSCORE with ~5 km2 area, a net of 16 I ACT telescopes (with FOV of about 10x10 degree), muon detectors with a total area of up to 2000-3000 m2 and the radio array Tunka-Rex., Peer Reviewed

Published
2016

47. Tunka-Rex: Status, Plans, and Recent Results

Author

Tunka-REX Collaboration, Schröder, F. G., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Kostunin, D., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Wischnewski, R., and Zagorodnikov, A.

Subjects
Physics, Muon, LOPES, 010308 nuclear & particles physics, QC1-999, Detector, Cosmic ray, Scintillator, 01 natural sciences, Particle detector, 0103 physical sciences, Calibration, ddc:620, 010306 general physics, Engineering & allied operations, Energy (signal processing), Remote sensing
Abstract

Tunka-Rex, the Tunka Radio extension at the TAIGA facility (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) in Siberia, has recently been expanded to a total number of 63 SALLA antennas, most of them distributed on an area of one square kilometer. In the first years of operation, Tunka-Rex was solely triggered by the co-located air-Cherenkov array Tunka-133. The correlation of the measurements by both detectors has provided direct experimental proof that radio arrays can measure the position of the shower maximum. The precision achieved so far is 40 g/cm2 , and several methodical improvements are under study. Moreover, the cross-comparison of Tunka-Rex and Tunka-133 shows that the energy reconstruction of Tunka-Rex is precise to 15 %, with a total accuracy of 20 % including the absolute energy scale. By using exactly the same calibration source for Tunka-Rex and LOPES, the energy scale of their host experiments, Tunka-133 and KASCADE-Grande, respectively, can be compared even more accurately with a remaining uncertainty of about 10 %. The main goal of Tunka-Rex for the next years is a study of the cosmic-ray mass composition in the energy range above 100 PeV: For this purpose, Tunka-Rex now is triggered also during daytime by the particle detector array Tunka-Grande featuring surface and underground scintillators for electron and muon detection.

Published
2017
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48. Towards a cosmic-ray mass-composition study at Tunka Radio Extension

Author

Tunka-REX Collaboration, Kostunin, D., Bezyazeekov, P. A., Budnev, N. M., Fedorov, O., Gress, O. A., Haungs, A., Hiller, R., Huege, T., Kazarina, Y., Kleifges, M., Korosteleva, E. E., Krömer, O., Kungel, V., Kuzmichev, L. A., Lubsandorzhiev, N., Mirgazov, R. R., Monkhoev, R., Osipova, E. A., Pakhorukov, A., Pankov, L., Prosin, V. V., Rubtsov, G. I., Schröder, F. G., Wischnewski, R., and Zagorodnikov, A.

Subjects
Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, QC1-999, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Hadron, Detector, Cosmic ray, Polarization (waves), 01 natural sciences, Asymmetry, Computational physics, Distribution function, Primary (astronomy), 0103 physical sciences, Particle, ddc:620, 010303 astronomy & astrophysics, Engineering & allied operations, media_common
Abstract

The Tunka Radio Extension (Tunka-Rex) is a radio detector at the TAIGA facility located in Siberia nearby the southern tip of Lake Baikal. Tunka-Rex measures air-showers induced by high-energy cosmic rays, in particular, the lateral distribution of the radio pulses. The depth of the air-shower maximum, statistically depends on the mass of the primary particle, is determined from the slope of the lateral distribution function (LDF). Using a model-independent approach, we have studied possible features of the one-dimensional slope method and tried to find improvements for the reconstruction of primary mass. To study the systematic uncertainties given by different primary particles, we have performed simulations using the CONEX and CoREAS software packages of the recently released CORSIKA v7.5 including the modern high-energy hadronic models QGSJet-II.04 and EPOS-LHC. The simulations have shown that the largest systematic uncertainty in the energy deposit is due to the unknown primary particle. Finally, we studied the relation between the polarization and the asymmetry of the LDF.

Published
2017
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49. Reconstruction of inclined air showers detected with the Pierre Auger Observatory

Author

The Pierre Auger Collaboration, Aab, A., Abreu, P., Aglietta, M., Ahlers, M., Ahn, E. J., Samarai, I. Al, Albuquerque, I. F. M., Allekotte, I., Allen, J., Allison, P., Almela, A., Castillo, J. Alvarez, Alvarez-Muñiz, J., Batista, R. Alves, Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertou, X., Biermann, P. L., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brancus, I., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buscemi, M., Caballero-Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Cheng, S. H., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Criss, A., Cronin, J., Curutiu, A., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., De Domenico, M., de Jong, S. J., Neto, J. R. T. de Mello, De Mitri, I., de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Castro, M. L. Díaz, Diep, P. N., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dong, P. N., Dorofeev, A., Hasankiadeh, Q. Dorosti, Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Luis, P. Facal San, Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Fröhlich, U., Fuchs, B., Fuji, T., Gaior, R., García, B., Roca, S. T. Garcia, Garcia-Gamez, D., Garcia-Pinto, D., Garilli, G., Bravo, A. Gascon, Gate, F., Gemmeke, H., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Glass, H., Albarracin, F. Gomez, Berisso, M. Gómez, Vitale, P. F. Gómez, Gonçalves, P., Gonzalez, J. G., Gookin, B., Gorgi, A., Gorham, P., Gouffon, P., Grebe, S., Griffith, N., Grillo, A. F., Grubb, T. D., Guardincerri, Y., Guarino, F., Guedes, G. P., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Islo, K., Jandt, I., Jansen, S., Jarne, C., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuempel, D., Kunka, N., La Rosa, G., LaHurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Coz, S. Le, Leão, M. S. A. B., Lebrun, D., Lebrun, P., de Oliveira, M. A. Leigui, Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Agëra, A. Lopez, Louedec, K., Bahilo, J. Lozano, Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M. C., Malacari, M., Maldera, S., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Marsella, G., Martello, D., Martin, L., Martinez, H., Bravo, O. Martínez, Martraire, D., Meza, J. J. Masías, Mathes, H. J., Mathys, S., Matthews, A. J., Matthews, J., Matthiae, G., Maurel, D., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Messina, S., Meyhandan, R., Mićanović, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina-Bueno, L., Mollerach, S., Monasor, M., Ragaigne, D. Monnier, Montanet, F., Morello, C., Moreno, J. C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Newton, D., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Olinto, A., Oliveira, M., Olmos-Gilbaja, V. M., Ortiz, M., Pacheco, N., Selmi-Dei, D. Pakk, Palatka, M., Pallotta, J., Palmieri, N., Papenbreer, P., Parente, G., Parra, A., Pastor, S., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I. M., Perrone, L., Pesce, R., Petermann, E., Peters, C., Petrera, S., Petrolini, A., Petrov, Y., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Privitera, P., Prouza, M., Purrello, V., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Roberts, J., de Carvalho, W. Rodrigues, Cabo, I. Rodriguez, Fernandez, G. Rodriguez, Rojo, J. Rodriguez, Rodríguez-Frías, M. D., Ros, G., Rosado, J., Rossler, T., Roth, M., Roulet, E., Rovero, A. C., Rühle, C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Greus, F. Salesa, Salina, G., Sánchez, F., Sanchez-Lucas, P., Santo, C. E., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Scholten, O., Schoorlemmer, H., Schovánek, P., Schulz, A., Schulz, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., kowski, A. Śmiał, Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Szuba, M., Taborda, O. A., Tapia, A., Tartare, M., Thao, N. T., Theodoro, V. M., Tiffenberg, J., Timmermans, C., Peixoto, C. J. Todero, Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Elipe, G. Torralba, Machado, D. Torres, Travnicek, P., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Galicia, J. F. Valdés, Valiño, I., Valore, L., van Aar, G., Berg, A. M. van den, van Velzen, S., van Vliet, A., Varela, E., Cárdenas, B. Vargas, Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Whelan, B. J., Widom, A., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zhou, J., Zhu, Y., Silva, M. Zimbres, Ziolkowski, M., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-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 de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Unité Scientifique de la Station de Nançay (USN), Observatoire des Sciences de l'Univers en région Centre (OSUC), 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 d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), PIERRE AUGER, European Project: 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET(2011), Research unit Astroparticle Physics, A., Aab, P., Abreu, M., Aglietta, M., Ahler, E., Ahn, I. A., Samarai, I., Albuquerque, I., Allekotte, J., Allen, P., Allison, A. k., Almela, J. A., Castillo, J., Alvarez Muñiz, R. A., Batista, M., Ambrosio, A., Aminaei, L. c., Anchordoqui, S., Andringa, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A., Badescu, K., Barber, J., Bäuml, C., Bau, J., Beatty, K., Becker, J., Bellido, C., Berat, X., Bertou, P., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H. a., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W., Brown, P., Buchholz, A., Bueno, M., Buscemi, K. b., Cl, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A., Chavez, S., Cheng, A., Chiavassa, J., Chinellato, J., Chudoba, M., Cilmo, R., Clay, Cocciolo, Giuseppe, R., Colalillo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, M., Cooper, S., Coutu, C., Covault, A., Cri, J., Cronin, A., Curutiu, R. a., Dallier, B., Danie, S. e., Dasso, K., Daumiller, B., Dawson, R. D., Almeida, M. D., Domenico, S. b., Bj, J. D., Mello, DE MITRI, Ivan, J. D., Oliveira, V. D., Souza, L. D., Peral, O., Deligny, H., Dembinski, N., Dhital, C. D., Giulio, A. D., Matteo, J., Diaz, M. D., Castro, P., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J., D'Olivo, P. c., Dong, A., Dorofeev, Q. D., Hasankiadeh, M., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. c., Escobar, J., Espadanal, A. k., Etchegoyen, P. F., San, H. b., Bj, K., Fang, G., Farrar, A., Fauth, N., Fazzini, A., Ferguson, M., Fernande, B., Fick, J., Figueira, A., Filevich, A. b., Filipčič, B., Fox, O., Fratu, U., Fröhlich, B., Fuch, T., Fuji, R., Gaior, B., García, S. G., Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A. G., Bravo, F., Gate, H., Gemmeke, P., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, F. G., Albarracin, M. G., Berisso, P. G., Vitale, P., Gonçalve, J., Gonzalez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S. b., Grebe, N., Griffth, A., Grillo, T., Grubb, Y., Guardincerri, F., Guarino, G., Guede, P., Hansen, D., Harari, T., Harrison, J., Harton, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A., Herve, G., Hill, C., Hojvat, N., Hollon, E., Holt, P. b., Homola, J. b., Hörandel, P., Horvath, M. a., Hrabovský, D., Huber, T., Huege, A., Insolia, P., Isar, K., Islo, I., Jandt, S. b., Jansen, C., Jarne, M., Josebachuili, A., Kääpä, O., Kambeitz, K., Kampert, P., Kasper, I., Katkov, B., Ke, B., Keilhauer, A., Keivani, E., Kemp, R., Kieckhafer, H., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G. L., Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S. L., Coz, M., Leão, D., Lebrun, P., Lebrun, M. L., De, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A. L., Agüera, K., Louedec, J. L., Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M., Maccarone, M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A., Mariazzi, V., Marin, I., Mari, Marsella, Giovanni, Martello, Daniele, L. a., Martin, H., Martinez, O. M., Bravo, D., Martraire, J. M., Meza, H., Mathe, S., Mathy, A., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mićanović, M., Micheletti, L., Middendorf, I., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D. M., Ragaigne, F., Montanet, C., Morello, J., Moreno, M., Mostafá, C., Moura, M. u., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, S., Nava, P., Necesal, L., Nellen, A. b., Nelle, J., Neuser, D. c., Newton, M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, V., Novotny, L., Nožka, L., Ochilo, A., Olinto, M., Oliveira, V., Olmos Gilbaja, M., Ortiz, N., Pacheco, D. P., Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, P., Papenbreer, G., Parente, A., Parra, S., Pastor, T. c., Paul, M., Pech, J., Pȩkala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, C., Peter, S. a., Petrera, A., Petrolini, Y., Petrov, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, A., Porcelli, C., Porowski, P., Privitera, M., Prouza, V., Purrello, E., Que, S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S. b., Riggi, M., Risse, P., Ristori, V., Rizi, J., Robert, W. R., De, I. R., Cabo, G. b., Rodriguez, J. R., Rojo, M., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, E., Roulet, A., Rovero, C., Rühle, S., Saffi, A., Saftoiu, F., Salamida, H., Salazar, F. S., Greu, G., Salina, F., Sánchez, P., Sanchez Luca, C., Santo, E., Santo, F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H. b., Cn, P., Schovánek, A., Schulz, J., Schulz, S., Sciutto, A., Segreto, M., Settimo, A., Shadkam, R., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., Śmialkowski, R., Śmída, G., Snow, P., Sommer, J., Sorokin, R., Squartini, Y., Srivastava, S., Stanič, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A., Supanitsky, M., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, O., Taborda, A., Tapia, M., Tartare, N., Thao, V., Theodoro, J., Tiffenberg, C. b., Timmerman, C. T., Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G. T., Elipe, D. T., Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. V., Galicia, I., Valiño, L., Valore, G. V., Aar, A. V., Den, S. V., Velzen, A. V., Vliet, E., Varela, B. V., Cárdena, G., Varner, J., Vázquez, R., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, B., Vlcek, S., Vorobiov, H., Wahlberg, O. k., Wainberg, D., Walz, A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, B., Whelan, A., Widom, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T. c., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D. b., Zavrtanik, M. b., Zavrtanik, I. c., Zaw, A. c., Zepeda, J., Zhou, Y., Zhu, M. Z., Silva, M., Ziolkowski, The Pierre Augur, Collaboration, Aramo, Carla, Buscemi, Mario, Cilmo, Marco, Colalillo, Roberta, Guarino, Fausto, Valore, Laura, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), 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 polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO), Institut de Physique Nucléaire d'Orsay ( IPNO ), Université Paris-Sud - Paris 11 ( UP11 ) -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 de Physique Subatomique et de Cosmologie ( LPSC ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Laboratoire SUBATECH Nantes ( SUBATECH ), Mines Nantes ( Mines Nantes ) -Université de Nantes ( UN ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de l'Accélérateur Linéaire ( LAL ), European Project : 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET ( 2011 ), and Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA )

Subjects
Astrofísica, Astronomy, Ciencias Físicas, 01 natural sciences, ultra high energy cosmic ray, High Energy Physics - Experiment, purl.org/becyt/ford/1 [https], ENERGY, High Energy Physics - Experiment (hep-ex), EXPERIMENTS, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], HIGH, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Pierre Auger Observatory, Cascade, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Normalization (statistics), [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], COSMIC, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, Energy spectrum, 010306 general physics, ULTRA, Zenith, Shower reconstruction, Muon, 010308 nuclear & particles physics, [ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Física, Astronomy and Astrophysics, purl.org/becyt/ford/1.3 [https], Ultra-high energy cosmic rays, RAYS, Computational physics, Astronomía, Inclined extensive air showers, Experimental High Energy Physics, cosmic ray experiments, [ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Energy (signal processing)
Abstract

We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than $60^\circ$ detected with the surface array of the Pierre Auger Observatory. The measured signals at the ground level are fitted to muon density distributions predicted with atmospheric cascade models to obtain the relative shower size as an overall normalization parameter. The method is evaluated using simulated showers to test its performance. The energy of the cosmic rays is calibrated using a sub-sample of events reconstructed with both the fluorescence and surface array techniques. The reconstruction method described here provides the basis of complementary analyses including an independent measurement of the energy spectrum of ultra-high energy cosmic rays using very inclined events collected by the Pierre Auger Observatory., 27 pages, 19 figures, accepted for publication in Journal of Cosmology and Astroparticle Physics (JCAP)

Published
2014
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50. A search for point sources of EeV photons

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Aab, A., Abreu, P., Aglietta, M., Ahlers, M., Ahn, E. J., Samarai, I. Al, Albuquerque, I. F. M., Allekotte, I., Allen, J., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez-Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertou, X., Biermann, P. L., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brancus, I., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buscemi, M., Caballero-Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Cheng, S. H., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Criss, A., Cronin, J., Curutiu, A., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., De Domenico, M., de Jong, S. J., de Mello Neto, J. R. T., De Mitri, I., de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Díaz Castro, M. L., Diep, P. N., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dong, P. N., Dorofeev, A., Dorosti Hasankiadeh, Q., Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Facal San Luis, P., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Fröhlich, U., Fuchs, B., Fuji, T., Gaior, R., García, B., Garcia Roca, S. T., Garcia-Gamez, D., Garcia-Pinto, D., Garilli, G., Gascon Bravo, A., Gate, F., Gemmeke, H., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Glass, H., Gomez Albarracin, F., Gómez Berisso, M., Gómez Vitale, P. F., Gonçalves, P., Gonzalez, J. G., Gookin, B., Gorgi, A., Gorham, P., Gouffon, P., Grebe, S., Griffith, N., Grillo, A. F., Grubb, T. D., Guardincerri, Y., Guarino, F., Guedes, G. P., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Islo, K., Jandt, I., Jansen, S., Jarne, C., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. 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J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Roberts, J., Rodrigues de Carvalho, W., Rodriguez Cabo, I., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez-Frías, M. D., Ros, G., Rosado, J., Rossler, T., Roth, M., Roulet, E., Rovero, A. C., Rühle, C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Salesa Greus, F., Salina, G., Sánchez, F., Sanchez-Lucas, P., Santo, C. E., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Scholten, O., Schoorlemmer, H., Schovánek, P., Schulz, A., Schulz, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., Śmiałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Szuba, M., Taborda, O. A., Tapia, A., Tartare, M., Thao, N. T., Theodoro, V. M., Tiffenberg, J., Timmermans, C., Todero Peixoto, C. J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. F., Valiño, I., Valore, L., van Aar, G., van den Berg, A. M., van Velzen, S., van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Whelan, B. J., Widom, A., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zhou, J., Zhu, Y., Zimbres Silva, M., Ziolkowski, M., Auger Collaboration102, The Pierre, Research unit Astroparticle Physics, 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), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, 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), Observatoire des Sciences de l'Univers en région Centre (OSUC), 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 d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), A., Aab, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I., Al Samarai, I. F. M., Albuquerque, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, K. B., Barber, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, J. A., Bellido, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, M., Buscemi, K. S., Caballero Mora, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A. G., Chavez, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chudoba, M., Cilmo, R. 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O., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G., La Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mariş, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, S., Mathy, A. J., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P. O., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mićanović, M. I., Micheletti, L., Middendorf, I. 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J., Whelan, A., Widom, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, J., Alvarez Mu?iz, J., B?uml, C., Bleve, H., Bl?mer, M., Boh??ov?, Buscemi, Mario, Cilmo, Marco, G., Cocciolo, Colalillo, Roberta, M. R., Coluccia, R., Concei??o, I., De Mitri, M. L., D?az Castro, A., Filip?i?, U., Fr?hlich, B., Garc?a, M., G?mez Berisso, P. F., G?mez Vitale, P., Gon?alve, Guarino, Fausto, J. R., H?randel, M., Hrabovsk?, A., K??p?, B., K?gl, O., Kr?mer, M. S. A. B., Le?o, R., L?pez, A., Lopez Ag?era, I. C., Mari?, G., Marsella, D., Martello, O., Mart?nez Bravo, J. J., Mas?as Meza, S., Mi?anovi?, M., Mostaf?, G., M?ller, M., M?nchmeyer, L., No?ka, J., Pe?kala, L., Perrone, M. D., Rodr?guez Fr?a, C., R?hle, F., S?nchez, V., Scherini, P., Schov?nek, A., ?mia?kowski, R., ?m?da, S., Stani?, T., Suomij?rvi, B., Tom?, Galicia, J. F. Vald?s., I., Vali?o, Valore, Laura, B., Vargas C?rdena, J. R., V?zquez, R. A., V?zquez, D., Veberi?, L., Villase?or, B., Wilczy?ska, and H., Wilczy?ski

Subjects
Astrofísica, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Photon, Point source, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Energy flux, FOS: Physical sciences, Cosmic ray, Astrophysics, 7. Clean energy, cosmic rays, Ciencias Exactas, media_common, Physics, Pierre Auger Observatory, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Física, Astronomy and Astrophysics, Radiación cósmica, methods: data analysis, Galaxy, 13. Climate action, Space and Planetary Science, Sky, astroparticle physics, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astroparticle physics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Measurements of air showersmade using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivariate analysis reduces the background of hadronic cosmic rays. The search is sensitive to a declination band from −85º to +20º, in an energy range from 1017.3 eV to 1018.5 eV. No photon point source has been detected. An upper limit on the photon flux has been derived for every direction. The mean value of the energy flux limit that results from this, assuming a photon spectral index of −2, is 0.06 eV cm−2 s−1, and no celestial direction exceeds 0.25 eV cm−2 s−1. These upper limits constrain scenarios in which EeV cosmic ray protons are emitted by non-transient sources in the Galaxy., Facultad de Ciencias Exactas

Published
2014
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