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Large-scale Cosmic-Ray Anisotropies above 4 EeV Measured by the Pierre Auger Observatory

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Autor(es):
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Aab, A. [1] ; Abreu, P. [2, 3] ; Aglietta, M. [4, 5] ; Albuquerque, I. F. M. [6] ; Albury, J. M. [7] ; Allekotte, I. [8, 9] ; Almela, A. [10, 11] ; Alvarez Castillo, J. [12] ; Alvarez-Muniz, J. [13] ; Anastasi, G. A. [14, 15] ; Anchordoqui, L. [16] ; Andrada, B. [10] ; Andringa, S. [2, 3] ; Aramo, C. [17] ; Asorey, H. [18, 8, 9] ; Assis, P. [2, 3] ; Avila, G. [19, 20] ; Badescu, A. M. [21] ; Balaceanu, A. [22] ; Barbato, F. [17, 23] ; Barreira Luz, R. J. [2, 3] ; Baur, S. [24] ; Becker, K. H. [25] ; Bellido, J. A. [7] ; Berat, C. [26] ; Bertaina, M. E. [4, 27] ; Bertou, X. [8, 9] ; Biermann, P. L. [28] ; Biteau, J. [29] ; Blaess, S. G. [7] ; Blanco, A. [2, 3] ; Blazek, J. [30] ; Bleve, C. [31, 32] ; Bohacova, M. [30] ; Bonifazi, C. [33] ; Borodai, N. [34] ; Botti, A. M. [10, 24] ; Brack, J. [35] ; Bretz, T. [36] ; Bridgeman, A. [37] ; Briechle, F. L. [36] ; Buchholz, P. [38] ; Bueno, A. [39, 40] ; Buitink, S. [41] ; Buscemi, M. [42, 43] ; Caballero-Mora, K. S. [44] ; Caccianiga, L. [45] ; Calcagni, L. [46, 47] ; Cancio, A. [10, 11] ; Canfora, F. [1, 48] ; Carceller, J. M. [39, 40] ; Caruso, R. [42, 43] ; Castellina, A. [4, 5] ; Catalani, F. [49] ; Cataldi, G. [32] ; Cazon, L. [2, 3] ; Chinellato, J. A. [50] ; Chudoba, J. [30] ; Chytka, L. [51] ; Clay, R. W. [7] ; Cobos Cerutti, A. C. [52, 53] ; Colalillo, R. [17, 23] ; Coleman, A. [54] ; Coluccia, M. R. [31, 32] ; Conceicao, R. [2, 3] ; Consolati, G. [55, 56] ; Contreras, F. [19, 20] ; Cooper, M. J. [7] ; Coutu, S. [54] ; Covault, C. E. [57] ; Daniel, B. [50] ; Dasso, S. [58, 59, 60, 61] ; Daumiller, K. [24] ; Dawson, B. R. [7] ; Day, J. A. [7] ; de Almeida, R. M. [62] ; de Jong, S. J. [1, 48] ; De Mauro, G. [1, 48] ; de Mello Neto, J. R. T. [33, 63] ; De Mitri, I. [14, 15] ; de Oliveira, J. [62] ; de Souza, V. [64] ; Debatin, J. [37] ; Deligny, O. [29] ; Dhital, N. [34] ; Diaz Castro, M. L. [50] ; Diogo, F. [2, 3] ; Dobrigkeit, C. [50] ; D'Olivo, J. C. [12] ; Dorosti, Q. [38] ; dos Anjos, R. C. [65] ; Dova, M. T. [46, 47] ; Dundovic, A. [66] ; Ebr, J. [30] ; Engel, R. [24] ; Erdmann, M. [36] ; Escobar, C. O. [67] ; Etchegoyen, A. [10, 11] ; Falcke, H. [1, 48, 68] ; Farmer, J. [69] ; Farrar, G. [70] ; Fauth, A. C. [50] ; Fazzini, N. [67] ; Feldbusch, F. [71] ; Fenu, F. [4, 27] ; Ferreyro, L. P. [10] ; Figueira, J. M. [10] ; Filipcic, A. [72, 73] ; Freire, M. M. [74, 75] ; Fujii, T. [69, 76] ; Fuster, A. [10, 11] ; Garcia, B. [52, 53] ; Gemmeke, H. [71] ; Gherghel-Lascu, A. [22] ; Ghia, P. L. [29] ; Giaccari, U. [77, 33] ; Giammarchi, M. [55] ; Giller, M. [78] ; Glas, D. [79] ; Glombitza, J. [36] ; Golup, G. [8, 9] ; Gomez Berisso, M. [8, 9] ; Gomez Vitale, P. F. [19, 20] ; Gonzalez, N. [10] ; Goos, I. [24, 8, 9] ; Gora, D. [34] ; Gorgi, A. [4, 5] ; Gottowik, M. [25] ; Grubb, T. D. [7] ; Guarino, F. [17, 23] ; Guedes, G. P. [80] ; Guido, E. [4, 27] ; Halliday, R. [57] ; Hampel, M. R. [10] ; Hansen, P. [46, 47] ; Harari, D. [8, 9] ; Harrison, T. A. [7] ; Harvey, V. M. [7] ; Haungs, A. [24] ; Hebbeker, T. [36] ; Heck, D. [24] ; Heimann, P. [38] ; Hill, G. C. [7] ; Hojvat, C. [67] ; Holt, E. M. [10, 37] ; Homola, P. [34] ; Horandel, J. R. [1, 48] ; Horvath, P. [51] ; Hrabovsky, M. [51] ; Huege, T. [24, 41] ; Hulsman, J. [10, 24] ; Insolia, A. [42, 43] ; Isar, P. G. [81] ; Jandt, I. [25] ; Johnsen, J. A. [82] ; Josebachuili, M. [10] ; Jurysek, J. [30] ; Kaeaepae, A. [25] ; Kampert, K. H. [25] ; Keilhauer, B. [24] ; Kemmerich, N. [6] ; Kemp, J. [36] ; Klages, H. O. [24] ; Kleifges, M. [71] ; Kleinfeller, J. [19] ; Krause, R. [36] ; Kuempel, D. [25] ; Mezek, G. Kukec [73] ; Awad, A. Kuotb [37] ; Lago, B. L. [83] ; LaHurd, D. [57] ; Lang, R. G. [64] ; Legumina, R. [78] ; Leigui de Oliveira, M. A. [84] ; Lenok, V. [24] ; Letessier-Selvon, A. [85, 86] ; Lhenry-Yvon, I. [29] ; Lo Presti, D. [42, 43] ; Lopes, L. [2, 3] ; Lopez, R. [87] ; Lopez Casado, A. [13] ; Lorek, R. [57] ; Luce, Q. [29] ; Lucero, A. [10] ; Malacari, M. [69] ; Mallamaci, M. [45, 55] ; Mancarella, G. [31, 32] ; Mandat, D. [30] ; Mantsch, P. [67] ; Mariazzi, A. G. [46, 47] ; Maris, I. C. [88] ; Marsella, G. [31, 32] ; Martello, D. [31, 32] ; Martinez, H. [89] ; Martinez Bravo, O. [87] ; Mathes, H. J. [24] ; Mathys, S. [25] ; Matthews, J. [90] ; Matthiae, G. [91, 92] ; Mayotte, E. [25] ; Mazur, P. O. [67] ; Medina-Tanco, G. [12] ; Melo, D. [10] ; Menshikov, A. [71] ; Merenda, K. -D. [82] ; Michal, S. [51] ; Micheletti, M. I. [74, 75] ; Middendorf, L. [36] ; Miramonti, L. [45, 55] ; Mitrica, B. [22] ; Mockler, D. [37] ; Mollerach, S. [8, 9] ; Montanet, F. [26] ; Morello, C. [4, 5] ; Morlino, G. [14, 15] ; Mostafa, M. [54] ; Mueller, A. L. [10, 24] ; Muller, M. A. [50, 93] ; Mueller, S. [10, 37] ; Mussa, R. [4] ; Nellen, L. [12] ; Nguyen, P. H. [7] ; Niculescu-Oglinzanu, M. [22] ; Niechciol, M. [38] ; Nitz, D. [94, 95] ; Nosek, D. [96] ; Novotny, V. [96] ; Nozka, L. [51] ; Nucita, A. [31, 32] ; Nunez, L. A. [18] ; Olinto, A. [69] ; Palatka, M. [30] ; Pallotta, J. [97, 98] ; Papenbreer, P. [25] ; Parente, G. [13] ; Parra, A. [87] ; Pech, M. [30] ; Pedreira, F. [13] ; Pekala, J. [34] ; Pelayo, R. [99] ; Pena-Rodriguez, J. [18] ; Pereira, L. A. S. [50] ; Perlin, M. [10] ; Perrone, L. [31, 32] ; Peters, C. [36] ; Petrera, S. [14, 15] ; Phuntsok, J. [54] ; Pierog, T. [24] ; Pimenta, M. [2, 3] ; Pirronello, V. [42, 43] ; Platino, M. [10] ; Poh, J. [69] ; Pont, B. [1] ; Porowski, C. [34] ; Prado, R. R. [64] ; Privitera, P. [69] ; Prouza, M. [30] ; Puyleart, A. [94] ; Querchfeld, S. [25] ; Quinn, S. [57] ; Ramos-Pollan, R. [18] ; Rautenberg, J. [25] ; Ravignani, D. [10] ; Reininghaus, M. [24] ; Ridky, J. [30] ; Riehn, F. [2, 3] ; Risse, M. [38] ; Ristori, P. [97, 98] ; Rizi, V. [14, 100] ; Rodrigues de Carvalho, W. [6] ; Rodriguez Rojo, J. [19] ; Roncoroni, M. J. [10] ; Roth, M. [24] ; Roulet, E. [8, 9] ; Rovero, A. C. [58] ; Ruehl, P. [38] ; Saffi, S. J. [7] ; Saftoiu, A. [22] ; Salamida, F. [14, 100] ; Salazar, H. [87] ; Saleh, A. [73] ; Salina, G. [91] ; Sanchez, F. [10] ; Santos, E. M. [6] ; Santos, E. [30] ; Sarazin, F. [82] ; Sarmento, R. [2, 3] ; Sarmiento-Cano, C. [10] ; Sato, R. [19] ; Savina, P. [31, 32] ; Schauer, M. [25] ; Scherini, V. [32] ; Schieler, H. [24] ; Schimassek, M. [37] ; Schimp, M. [25] ; Schmidt, D. [37] ; Scholten, O. [101, 41] ; Schovanek, P. [30] ; Schroeder, F. G. [37] ; Schroeder, S. [25] ; Schumacher, J. [36] ; Sciutto, S. J. [46, 47] ; Shellard, R. C. [77] ; Sigl, G. [66] ; Silli, G. [10, 24] ; Sima, O. [22, 102] ; Smida, R. [36] ; Snow, G. R. [103] ; Sommers, P. [54] ; Soriano, J. F. [16] ; Souchard, J. [26] ; Squartini, R. [19] ; Stanca, D. [22] ; Stanic, S. [73] ; Stasielak, J. [34] ; Stassi, P. [26] ; Stolpovskiy, M. [26] ; Streich, A. [37] ; Suarez, F. [10, 11] ; Suarez-Duran, M. [18] ; Sudholz, T. [7] ; Suomijarvi, T. [29] ; Supanitsky, A. D. [10] ; Supik, J. [51] ; Szadkowski, Z. [79] ; Taboada, A. [24] ; Taborda, O. A. [8, 9] ; Tapia, A. [104] ; Timmermans, C. [1, 48] ; Todero Peixoto, C. J. [49] ; Tome, B. [2, 3] ; Torralba Elipe, G. [13] ; Travnicek, P. [30] ; Trini, M. [73] ; Tueros, M. [46, 47] ; Ulrich, R. [24] ; Unger, M. [24] ; Urban, M. [36] ; Valdes Galicia, J. F. [12] ; Valino, I. [13] ; Valore, L. [17, 23] ; van Bodegom, P. [7] ; van den Berg, A. M. [101] ; van Vliet, A. [1] ; Varela, E. [87] ; Vargas Cardenas, B. [12] ; Vazquez, R. A. [13] ; Veberic, D. [24] ; Ventura, C. [63] ; Vergara Quispe, I. D. [46, 47] ; Verzi, V. [91] ; Vicha, J. [30] ; Villasenor, L. [87] ; Vorobiov, S. [73] ; Wahlberg, H. [46, 47] ; Wainberg, O. [10, 11] ; Watson, A. A. [105] ; Weber, M. [71] ; Weindl, A. [24] ; Wiedenski, M. [79] ; Wiencke, L. [82] ; Wilczynski, H. [34] ; Wirtz, M. [36] ; Wittkowski, D. [25] ; Wundheiler, B. [10] ; Yang, L. [73] ; Yushkov, A. [30] ; Zas, E. [13] ; Zavrtanik, D. [72, 73] ; Zavrtanik, M. [72, 73] ; Zehrer, L. [73] ; Zepeda, A. [89] ; Zimmermann, B. [71] ; Ziolkowski, M. [38] ; Zong, Z. [29] ; Zuccarello, F. [42, 43] ; Collaboration, Pierre Auger
Número total de Autores: 377
Afiliação do(s) autor(es):
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[1] Radboud Univ Nijmegen, IMAPP, Nijmegen - Netherlands
[2] Univ Lisbon, Lab Instrumentacao & Fis Expt Particulas LIP, Lisbon - Portugal
[3] Univ Lisbon, IST, Lisbon - Portugal
[4] Ist Nazl Fis Nucl, Sez Torino, Turin - Italy
[5] Osservatorio Astrofis Torino INAF, Turin - Italy
[6] Univ Sao Paulo, Inst Fis, Sao Paulo, SP - Brazil
[7] Univ Adelaide, Adelaide, SA - Australia
[8] CNEA, UNCuyo, CONICET, Ctr Atom Bariloche, San Carlos De Bariloche, Rio Negro - Argentina
[9] CNEA, UNCuyo, CONICET, Inst Balseiro, San Carlos De Bariloche, Rio Negro - Argentina
[10] UNSAM, CONICET, CNEA, Inst Tecnol Detecc & Astroparticulas, Buenos Aires, DF - Argentina
[11] Univ Tecnol Nacl, Fac Reg Buenos Aires, Buenos Aires, DF - Argentina
[12] Univ Nacl Autonoma Mexico, Mexico City, DF - Mexico
[13] Univ Santiago de Compostela, IGFAE, Santiago De Compostela - Spain
[14] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Assergi, Laquila - Italy
[15] Gran Sasso Sci Inst, Laquila - Italy
[16] CUNY, Dept Phys & Astron, Lehman Coll, Bronx, NY 10468 - USA
[17] Ist Nazl Fis Nucl, Sez Napoli, Naples - Italy
[18] Univ Ind Santander, Bucaramanga - Colombia
[19] Observ Pierre Auger, Malargue - Argentina
[20] Comis Nacl Energia Atom, Malargue - Argentina
[21] Univ Politehn Bucuresti, Bucharest - Romania
[22] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest - Romania
[23] Univ Napoli Federico II, Dipartimento Fis Ettore Pancini, Naples - Italy
[24] Karlsruhe Inst Technol, Inst Kernphys, Karlsruhe - Germany
[25] Berg Univ Wuppertal, Dept Phys, Wuppertal - Germany
[26] Univ Grenoble Alpes, CNRS, Grenoble Inst Engn, LPSC IN2P3, F-38000 Grenoble - France
[27] Univ Torino, Dipartimento Fis, Turin - Italy
[28] Max Planck Inst Radioastron, Bonn - Germany
[29] Univ Paris Sud, Univ Paris Saclay, IPNO, CNRS IN2P3, Orsay - France
[30] Czech Acad Sci, Inst Phys, Prague - Czech Republic
[31] Univ Salento, Dipartimento Matemat & Fis E De Giorgi, Lecce - Italy
[32] Ist Nazl Fis Nucl, Sez Lecce, Lecce - Italy
[33] Univ Fed Rio de Janeiro, Inst Fis, Rio De Janeiro, RJ - Brazil
[34] Inst Nucl Phys PAN, Krakow - Poland
[35] Colorado State Univ, Ft Collins, CO 80523 - USA
[36] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen - Germany
[37] Karlsruhe Inst Technol, Inst Expt Particle Phys ETP, Karlsruhe - Germany
[38] Univ Siegen, Fachbereich Phys Expt Teilchenphys 7, Siegen - Germany
[39] Univ Granada, Granada - Spain
[40] CAFPE, Granada - Spain
[41] Vrije Univ Brussels, Brussels - Belgium
[42] Ist Nazl Fis Nucl, Sez Catania, Catania - Italy
[43] Univ Catania, Dipartimento Fis & Astron, Catania - Italy
[44] Univ Autonoma Chiapas, Tuxtla Gutierrez, Chiapas - Mexico
[45] Univ Milan, Dipartimento Fis, Milan - Italy
[46] Consejo Nacl Invest Cient & Tecn, La Plata - Argentina
[47] Univ Nacl La Plata, IFLP, La Plata - Argentina
[48] Nikhef, Sci Pk, Amsterdam - Netherlands
[49] Univ Sao Paulo, Escola Engn Lorena, Lorena, SP - Brazil
[50] Univ Estadual Campinas, IFGW, Campinas, SP - Brazil
[51] Palacky Univ, RCPTM, Olomouc - Czech Republic
[52] UNSAM, CONICET, CNEA, Inst Tecnol Detecc & Astroparticulas, Mendoza - Argentina
[53] Univ Tecnol Nacl, CONICET, CNEA, Fac Reg Mendoza, Mendoza - Argentina
[54] Penn State Univ, University Pk, PA 16801 - USA
[55] Ist Nazl Fis Nucl, Sez Milano, Milan - Italy
[56] Politecn Milan, Dipartimento Sci & Tecnol Aerospaziali, Milan - Italy
[57] Case Western Reserve Univ, Cleveland, OH 44106 - USA
[58] CONICET UBA, IAFE, Buenos Aires, DF - Argentina
[59] Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF - Argentina
[60] Univ Buenos Aires, FCEyN, Dept Fis, Buenos Aires, DF - Argentina
[61] Univ Buenos Aires, Dept Ciencias Atmosfera & Oceanos, Buenos Aires, DF - Argentina
[62] Univ Fed Fluminense, EEIMVR, Volta Redonda, RJ - Brazil
[63] Univ Fed Rio de Janeiro, Observ Valongo, Rio de Janeiro, RJ - Brazil
[64] Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP - Brazil
[65] Univ Fed Parana, Setor Palotina, Palotina - Brazil
[66] Univ Hamburg, Inst Theoret Phys 2, Hamburg - Germany
[67] Fermilab Natl Accelerator Lab, Batavia, IL 60510 - USA
[68] Stichting Astron Onderzoek Nederland ASTRON, Dwingeloo - Netherlands
[69] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 - USA
[70] NYU, 550 1St Ave, New York, NY 10003 - USA
[71] Karlsruhe Inst Technol, Inst Prozessdatenverarbeitung & Elekt, Karlsruhe - Germany
[72] J Stefan Inst, Expt Particle Phys Dept, Ljubljana - Slovenia
[73] Univ Nova Gorica, CAC, Nova Gorica - Slovenia
[74] UNR, CONICET, Inst Fis Rosario IFIR, Rosario - Argentina
[75] UNR, Fac Ciencias Bioquim & Farmaceut, Rosario - Argentina
[76] Univ Tokyo, Inst Cosm Ray Res, Tokyo - Japan
[77] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, RJ - Brazil
[78] Univ Lodz, Fac Astrophys, Lodz - Poland
[79] Univ Lodz, Fac High Energy Astrophys, Lodz - Poland
[80] Univ Estadual Feira de Santana, Feira De Santana - Brazil
[81] Inst Space Sci, Bucharest - Romania
[82] Colorado Sch Mines, Golden, CO 80401 - USA
[83] Ctr Fed Educ Tecnol Celso Suckow da Fonseca, Nova Friburgo - Brazil
[84] Univ Fed ABC, Santo Andre, SP - Brazil
[85] Univ Paris 06, LPNHE, Paris - France
[86] Univ Paris 07, CNRS IN2P3, Paris - France
[87] Benemerita Univ Autonoma Puebla, Puebla - Mexico
[88] Univ Libre Bruxelles, Brussels - Belgium
[89] Ctr Invest & Estudios Avanzados IPN, CINVESTAV, Mexico City, DF - Mexico
[90] Louisiana State Univ, Baton Rouge, LA 70803 - USA
[91] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome - Italy
[92] Univ Roma Tor Vergata, Dipartimento Fis, Rome - Italy
[93] Univ Fed Alfenas, Pocos De Caldas - Brazil
[94] Michigan Technol Univ, Houghton, MI 49931 - USA
[95] Karlsruhe Inst Technol, Karlsruhe - Germany
[96] Charles Univ Prague, Inst Particle & Nucl Phys, Fac Math & Phys, Prague - Czech Republic
[97] Consejo Nacl Invest Cient & Tecn, Villa Martelli - Argentina
[98] CITEDEF, Ctr Invest Laseres & Aplicac, Villa Martelli - Argentina
[99] IPN, UPIITA, Mexico City, DF - Mexico
[100] Univ Aquila, Dipartimento Sci Fis & Chim, Laquila - Italy
[101] Univ Groningen, KVI Ctr Adv Radiat Technol, Groningen - Netherlands
[102] Univ Bucharest, Phys Dept, Bucharest - Romania
[103] Univ Nebraska, Lincoln, NE 68588 - USA
[104] Univ Medellin, Medellin - Colombia
[105] Univ Leeds, Sch Phys & Astron, Leeds, W Yorkshire - England
Número total de Afiliações: 105
Tipo de documento: Artigo Científico
Fonte: ASTROPHYSICAL JOURNAL; v. 868, n. 1 NOV 20 2018.
Citações Web of Science: 14
Resumo

We present a detailed study of the large-scale anisotropies of cosmic rays with energies above 4 EeV measured using the Pierre Auger Observatory. For the energy bins {[}4, 8] EeV and E >= 8 EeV, the most significant signal is a dipolar modulation in R.A. at energies above 8 EeV, as previously reported. In this paper we further scrutinize the highest-energy bin by splitting it into three energy ranges. We find that the amplitude of the dipole increases with energy above 4 EeV. The growth can be fitted with a power law with index beta = 0.79 +/- 0.19. The directions of the dipoles are consistent with an extragalactic origin of these anisotropies at all the energies considered. Additionally, we have estimated the quadrupolar components of the anisotropy: they are not statistically significant. We discuss the results in the context of the predictions from different models for the distribution of ultrahigh-energy sources and cosmic magnetic fields. (AU)

Processo FAPESP: 99/05404-3 - Observatório Pierre Auger
Beneficiário:Carlos Ourivio Escobar
Modalidade de apoio: Auxílio à Pesquisa - Temático
Processo FAPESP: 10/07359-6 - Estudo dos raios cósmicos de mais altas energias com o Observatório Pierre Auger
Beneficiário:Carola Dobrigkeit Chinellato
Modalidade de apoio: Auxílio à Pesquisa - Temático