Title: | Large Scale Distribution of Ultra High Energy Cosmic Rays Detected at the Pierre Auger Observatory with Zenith Angles up to 80° |
Authors: | Aab, A. Abreu, P. AGLIETTA, MARCO 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. 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. G. 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, 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. 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. 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. 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. Freire, M. M. Fröhlich, U. Fuchs, B. Fujii, T. Gaior, R. García, B. 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. Gómez Berisso, M. Gómez Vitale, P. F. Gonçalves, P. Gonzalez, J. G. González, N. Gookin, B. Gordon, J. GORGI, Alessio 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. 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. Louedec, K. Lozano Bahilo, J. Lu, L. Lucero, A. Ludwig, M. 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. Maurel, D. Maurizio, D. Mayotte, E. Mazur, P. O. Medina, C. Medina-Tanco, G. Meissner, R. Melissas, M. Melo, D. Menshikov, A. MESSINA, Sergio 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. 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. H. Niechciol, M. Niemietz, L. Niggemann, T. Nitz, D. Nosek, D. Novotny, V. Nožka, L. Ochilo, L. Oikonomou, F. Olinto, A. Oliveira, M. Pacheco, N. Pakk Selmi-Dei, D. 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, Simone Risse, M. Ristori, P. Rizi, V. Rodrigues de Carvalho, W. Rodriguez Fernandez, G. Rodriguez Rojo, J. 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. 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, 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. 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. 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. Trovato, E. 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. 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. 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. Zepeda, A. Zhou, J. Zhu, Y. Zimbres Silva, M. Ziolkowski, M. Zuccarello, Francesca |
Issue Date: | 2015 |
Journal: | THE ASTROPHYSICAL JOURNAL |
Number: | 802 |
Issue: | 2 |
First Page: | 111 |
Abstract: | We present the results of an analysis of the large angular scale distribution of the arrival directions of cosmic rays with energy above 4 EeV detected at the Pierre Auger Observatory including for the first time events with zenith angle between 60° and 80°. We perform two Rayleigh analyses, one in the right ascension and one in the azimuth angle distributions, that are sensitive to modulations in right ascension and declination, respectively. The largest departure from isotropy appears in the E\gt 8 EeV energy bin, with an amplitude for the first harmonic in right ascension r<SUB>1</SUB><SUP>α </SUP>=(4.4+/- 1.0)× {{10}<SUP>-2</SUP>}, that has a chance probability P(≥slant r<SUB>1</SUB><SUP>α </SUP>)=6.4× {{10}<SUP>-5</SUP>}, reinforcing the hint previously reported with vertical events alone.... |
Acknowledgments: | The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are very grateful to the following agencies and organizations for financial support: Comisión Nacional de Energía Atómica, Fundación Antorchas, Gobierno de la Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), São Paulo Research Foundation (FAPESP) Grants No. 2012/51015-5, 2010/07359-6 and No. 1999/05404-3, Ministério de Ciência e Tecnologia (MCT), Brazil; Grant No. MSMT-CR LG13007, No. 7AMB14AR005, No. CZ.1.05/2.1.00/03.0058 and the Czech Science Foundation Grant No. 14-17501 S, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France, Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/CNRS), Institut Lagrange de Paris (ILP) Grant No. LABEX ANR-10-LABX-63, within the Investissements d’Avenir Programme Grant No. ANR-11-IDEX-0004-02, France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Württemberg, Helmholtz Alliance for Astroparticle Physics (HAP), Helmholtz-Gemeinschaft Deutscher Forschungszentrum (HGF), Helmholtz Alliance for Astroparticle Physics (HAP), Ministerium für Wissenschaft und Forschung, Nordrhein Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden-Württemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR), Gran Sasso Center for Astroparticle Physics (CFA), CETEMPS Center of Excellence, Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), The Netherlands; National Centre for Research and Development, Grants No. ERA-NET-ASPERA/01/11 and No. ERA-NET-ASPERA/02/11, National Science Centre, Grants No. 2013/08/M/ST9/00322, No. 2013/08/M/ST9/00728 and No. HARMONIA 5-2013/10/M/ST9/00062, Poland; Portuguese national funds and FEDER funds within Programa Operacional Factores de Competitividade through Fundação para a Ciência e a Tecnologia (COMPETE), Portugal; Romanian Authority for Scientific Research ANCS, CNDI-UEFISCDI partnership projects Grants No. 20/2012 and No. 194/2012, Grants No. 1/ASPERA2/2012 ERA-NET, No. PN-II-RU-PD-2011-3-0145-17 and No. PN-II-RU-PD-2011-3-0062, the Minister of National Education, Programme Space Technology and Advanced Research (STAR), Grant No. 83/2013, Romania; Slovenian Research Agency, Slovenia; Comunidad de Madrid, FEDER funds, Ministerio de Educación y Ciencia, Xunta de Galicia, European Community 7th Framework Program, Grant No. FP7-PEOPLE-2012-IEF-328826, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contracts No. DE-AC02-07CH11359, No. DE-FR02-04ER41300, No. DE-FG02-99ER41107 and No. DE-SC0011689, National Science Foundation, Grant No. 0450696, The Grainger Foundation, USA; NAFOSTED, Vietnam; Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, European Union 7th Framework Program, Grant No. PIRSES-2009-GA-246806; and UNESCO. |
URI: | http://hdl.handle.net/20.500.12386/23868 http://hdl.handle.net/20.500.12386/23995 |
URL: | https://iopscience.iop.org/article/10.1088/0004-637X/802/2/111 |
ISSN: | 0004-637X |
DOI: | 10.1088/0004-637X/802/2/111 |
Bibcode ADS: | 2015ApJ...802..111A |
Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista
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