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Abstract:

Data collected by the Pierre Auger Observatory provide evidence for anisotropy in the arrival directions of the cosmic rays with the highest-energies, which are correlated with the positions of relatively nearby active galactic nuclei (AGN) [Pierre Auger Collaboration, Science 318 (2007) 938]. The correlation has maximum significance for cosmic rays with energy greater than ∼6 × 1019 eV and AGN at a distance less than ∼75 Mpc. We have confirmed the anisotropy at a confidence level of more than 99% through a test with parameters specified a priori, using an independent data set. The observed correlation is compatible with the hypothesis that cosmic rays with the highest-energies originate from extra-galactic sources close enough so that their flux is not significantly attenuated by interaction with the cosmic background radiation (the Greisen-Zatsepin-Kuz'min effect). The angular scale of the correlation observed is a few degrees, which suggests a predominantly light composition unless the magnetic fields are very weak outside the thin disk of our galaxy. Our present data do not identify AGN as the sources of cosmic rays unambiguously, and other candidate sources which are distributed as nearby AGN are not ruled out. We discuss the prospect of unequivocal identification of individual sources of the highest-energy cosmic rays within a few years of continued operation of the Pierre Auger Observatory. © 2008 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei
Autor:Multitudinario:447
Filiación:Centro de Investigaciones en Láseres y Aplicaciones, CITEFA, CONICET, Argentina
Centro Atómico Constituyentes, CNEA, Buenos Aires, Argentina
Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, CONICET, Argentina
Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, UTN-FRBA, Argentina
Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, San Carlos de Bariloche, Argentina
Departamento de Física, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, Argentina
Centro Atómico Bariloche, Comision Nacional de Energía Atómica, Instituto Balseiro, San Carlos de Bariloche, Argentina
Departamento de Física, FCEyN, Universidad de Buenos Aires, Argentina
Departamento de Física, Universidad Nacional de La Plata, Fundación Universidad Tecnológica Nacional, Argentina
IFLP, Universidad Nacional de La Plata, CONICET, La Plata, Argentina
Instituto de Astronomía y Física del Espacio, CONICET, Buenos Aires, Argentina
Pierre Auger Southern Observatory, Malargüe, Argentina
Pierre Auger Southern Observatory and Comisión Nacional de Energía Atómica, Malargüe, Argentina
Universidad Tecnológica Nacional, FR-Mendoza, Argentina
Universidad Tecnológica Nacional, FR-Mendoza and Fundación Universidad Tecnológica Nacional, Argentina
University of Adelaide, Adelaide, SA, Australia
Universidad Catolica de Bolivia, La Paz, Bolivia
Universidad Mayor de San Andrés, Bolivia
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ, Brazil
Pontifícia Universidade Católica, Rio de Janeiro, RJ, Brazil
Universidade de Sao Paulo, Instituto de Fisica, Sao Paulo, SP, Brazil
Universidade Estadual de Campinas, IFGW, Campinas, SP, Brazil
Universidade Estadual de Feira de Santana, Brazil
Universidade Estadual do Sudoeste da Bahia, Vitoria da Conquista, BA, Brazil
Universidade Federal da Bahia, Salvador, BA, Brazil
Universidade Federal, ABC, Santo André, SP, Brazil
Universidade Federal do Rio de Janeiro, Instituto de Física, Rio de Janeiro, RJ, Brazil
Universidade Federal Fluminense, Instituto de Fisica, Niterói, RJ, Brazil
Charles University, Institute of Particle and Nuclear Physics, Prague, Czech Republic
Institute of Physics, the Academy of Sciences of the Czech Republic, Prague, Czech Republic
Institut de Physique Nucléaire, Université Paris-Sud, IN2P3/CNRS, Orsay, France
Laboratoire AstroParticule et Cosmologie, Université Paris 7, IN2P3/CNRS, Paris, France
Laboratoire de l'Accélérateur Linéaire, Université Paris-Sud, IN2P3/CNRS, Orsay, France
Laboratoire de Physique Nucléaire et de Hautes Energies, Universités Paris 6 and 7, IN2P3/CNRS, Paris Cedex 05, France
Laboratoire de Physique Subatomique et de Cosmologie, IN2P3/CNRS, Université Grenoble 1, Grenoble, France
Bergische Universität Wuppertal, Wuppertal, Germany
Forschungszentrum Karlsruhe, Institut für Kernphysik, Karlsruhe, Germany
Forschungszentrum Karlsruhe, Institut für Prozessdatenverarbeitung und Elektronik, Germany
Max-Planck-Institut für Radioastronomie, Bonn, Germany
RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
Universität Karlsruhe, TH, Institut für Experimentelle Kernphysik, Karlsruhe, Germany
Universität Siegen, Siegen, Germany
Università de l'Aquila, Sezione INFN, Aquila, Italy
Università di Milano, Sezione INFN, Milan, Italy
Università del Salento, Sezione INFN, Lecce, Italy
Università di Napoli Federico II, Sezione INFN, Napoli, Italy
Università di Roma II Tor Vergata, Sezione INFN, Roma, Italy
Università di Catania, Sezione INFN, Catania, Italy
Università di Torino, Sezione INFN, Torino, Italy
Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, INAF, Palermo, Italy
Istituto di Fisica dello Spazio Interplanetario, INAF, Università di Torino, Torino, Italy
INFN, Laboratori Nazionali del Gran Sasso, Assergi, L'Aquila, Italy
Osservatorio Astrofisico di Arcetri, Florence, Italy
Sezione INFN di Napoli, Napoli, Italy
Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
Centro de Investigación y de Estudios Avanzados, IPN, CINVESTAV, México, DF, Mexico
Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico
Universidad Nacional Autonoma de Mexico, Mexico, DF, Mexico
IMAPP, Radboud University, Nijmegen, Netherlands
Kernfysisch Versneller Instituut, University of Groningen, Groningen, Netherlands
NIKHEF, Amsterdam, Netherlands
ASTRON, Dwingeloo, Netherlands
Institute of Nuclear Physics PAN, Krakow, Poland
University of Łódź, Łódz, Poland
LIP, Instituto Superior Técnico, Lisboa, Portugal
J. Stefan Institute, Ljubljana, Slovenia
Laboratory for Astroparticle Physics, University of Nova Gorica, Slovenia
Instituto de Física Corpuscular, CSIC-Universitat de València, Valencia, Spain
Universidad Complutense de Madrid, Madrid, Spain
Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
Universidad de Granada, C.A.F.P.E., Granada, Spain
Universidad de Santiago de Compostela, Spain
Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford, United Kingdom
School of Physics and Astronomy, University of Leeds, United Kingdom
Argonne National Laboratory, Argonne, IL, United States
Case Western Reserve University, Cleveland, OH, United States
Colorado School of Mines, Golden, CO, United States
Colorado State University, Fort Collins, CO, United States
Colorado State University, Pueblo, CO, United States
Fermilab, Batavia, IL, United States
Louisiana State University, Baton Rouge, LA, United States
Michigan Technological University, Houghton, MI, United States
New York University, New York, NY, United States
Northeastern University, Boston, MA, United States
Ohio State University, Columbus, OH, United States
Pennsylvania State University, University Park, PA, United States
Southern University, Baton Rouge, LA, United States
University of California, Los Angeles, CA, United States
University of Chicago, Enrico Fermi Institute, Chicago, IL, United States
University of Colorado, Boulder, CO, United States
University of Hawaii, Honolulu, HI, United States
University of Minnesota, Minneapolis, MN, United States
University of Nebraska, Lincoln, NE, United States
University of New Mexico, Albuquerque, NM, United States
University of Pennsylvania, Philadelphia, PA, United States
University of Utah, Salt Lake City, UT, United States
University of Wisconsin, Madison, WI, United States
University of Wisconsin, Milwaukee, WI, United States
Institute for Nuclear Science and Technology, Hanoi, Viet Nam
Palabras clave:AGN; Anisotropy; Auger; EGMF; Extra-galactic; GMF; GZK; High energy cosmic rays; Observatory; UHECR; Anisotropy; Galaxies; High energy physics; Magnetic field effects; Parameter estimation; Active galactic nuclei (AGN); Extra-galactic; High energy cosmic rays; Cosmic rays
Año:2008
Volumen:29
Número:3
Página de inicio:188
Página de fin:204
DOI: http://dx.doi.org/10.1016/j.astropartphys.2008.01.002
Título revista:Astroparticle Physics
Título revista abreviado:Astropart. Phys.
ISSN:09276505
CODEN:APHYE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09276505_v29_n3_p188_Multitudinario

Referencias:

  • (2007) Science, 318, p. 938. , Pierre Auger Collaboration
  • Linsley, J., (1963) Phys. Rev. Lett., 10, p. 146
  • Greisen, K., (1966) Phys. Rev. Lett., 16, p. 748
  • Zatsepin, G.T., Kuz'min, V.A., (1966) Sov. Phys. JETP Lett., 4, p. 78
  • Puget, J.L., Stecker, F.W., Bredekamp, J.J., (1976) Astrophys. J., 205, p. 638
  • Epele, L.N., Roulet, E., (1999) Phys. Rev. Lett., 81, p. 3295
  • Abraham, J., (2004) Nucl. Instr. and Meth. A, 523, p. 50. , Pierre Auger Collaboration
  • Ginzburg, V.L., Syrovatskii, S.I., (1964) The Origin of Cosmic Rays, , Pergamon Press, Oxford
  • Hillas, A.M., (1984) Ann. Rev. Astron. Astrophys., 22, p. 425
  • M. Ave, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0709.2125>; Véron-Cetty, M.-P., Véron, P., (2006) Astron. Astrophys., 455, p. 773. , http://vizier.u-strasbg.fr/viz-bin/VizieR, We acknowledge use of the VizieR catalogue access tool, CDS, Strasbourg, France, at <http://vizier.u-strasbg.fr/viz-bin/VizieR>
  • Bonifazi, C., Letessier-Selvon, A., Santos, E.M., (2008) Astropart. Phys., 28, p. 523
  • C. Bonifazi, Pierre Auger Collaboration, in: Proceedings of the 29th International Cosmic Ray Conference Pune, India, vol. 7, 2005, p. 17; M. Roth, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0706.2096>; B. Dawson, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0706.1105>; D. Allard et al., Pierre Auger Collaboration, in: Proceedings of the 29th International Cosmic Ray Conference, Pune, India, vol. 7, 2005, p. 71. <arXiv:astro-ph/0511104>; C. Bleve, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0706.1491v1>; Finley, C.B., Westerhoff, S., (2004) Astropart. Phys., 21, p. 359
  • Hayashida, N., (1999) Astropart. Phys., 10, p. 333
  • Bellido, J.A., (2001) Astropart. Phys., 15, p. 167
  • Hayashida, N., (1996) Phys. Rev. Lett., 77, p. 1000
  • Tinyakov, P.G., Tkachev, I.I., (2001) JETP Lett., 74, p. 445
  • (2007) Astropart. Phys., 27, p. 244. , Pierre Auger Collaboration
  • Abbasi, R.U., (2004) Astrophys. J., 610, pp. L73. , HiRes Collaboration
  • Abbasi, R.U., (2006) Astrophys. J., 636, p. 680. , HiRes Collaboration
  • S. Mollerach, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0706.1749>; D. Harari, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0706.1715>; R.W. Clay, Pierre Auger Collaboration, in: Proceedings of the 28th International Cosmic Ray Conference, Tsukuba, Japan, 2003, p. 421. <arXiv:astro-ph/0308494>; B. Revenu, Pierre Auger Collaboration, in: Proceedings of the 29th International Cosmic Ray Conference, Pune, India, 2005. <arXiv:astro-ph/0507600>; Wald, A., (1945) Ann. Math. Statist., 16, p. 117
  • Wald, A., (1947) Sequential Analysis, , John Wiley and Sons, New York
  • S.Y. BenZvi, B.M. Connolly, S. Westerhoff, Astrophys. J., submitted for publication. <arXiv:0711.3937>; Sommers, P., (2001) Astropart. Phys., 14, p. 271
  • Billoir, P., Deligny, O., (2008) JCAP, 2, p. 009
  • Dubovsky, S.L., Tinyakov, P.G., Tkachev, I.I., (2000) Phys. Rev. Lett., 85, p. 1154
  • Pierre Auger Collaboration, Discriminating among different scenarios for the correlation of the highest-energy Auger events with nearby sources, in preparation; Saunders, W., (2000) Mont. Notice Royal Astron. Soc., 316, p. 55
  • Abell, G.O., Corwin, H.G., Olowin, R.P., (1989) Astrophys. J. Suppl. Ser., 70, p. 1
  • Böhringer, H., (2004) Astron. Astrophys., 425, p. 367
  • Böhringer, H., (2000) Astrophys. J. Suppl. Ser., 129, p. 435
  • Coziol, R., (1998) Astrophys. J. Suppl. Ser., 119, p. 239
  • Stecker, F.W., (1968) Phys. Rev. Lett., 21, p. 1016
  • Harari, D., Mollerach, S., Roulet, E., (2006) JCAP, 11, p. 012
  • R. Engel, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0706.1921>; Stanev, T., (1997) Astrophys. J., 479, p. 290
  • Harari, D., Mollerach, S., Roulet, E., (1999) JHEP, 8, p. 022
  • Han, J.L., (2006) Chinese J. Astron. Astrophys., 6, p. 211. , <arXiv:astro-ph/0603512>
  • Dolag, K., Grasso, D., Springel, V., Tkachev, I., (2005) JCAP, 501, p. 009
  • Sigl, G., Miniati, F., Ensslin, T.A., (2004) Phys. Rev. D, 70, p. 043007. , <arXiv:astro-ph/0401084>
  • Stanev, T., (2003) High Energy Cosmic Rays, , Springer-Verlag, Berlin
  • Blasi, P., Epstein, R.I., Olinto, A.V., (2000) Astrophys. J., 533, pp. L123
  • Bednarek, W., (2003) Mon. Notice Royal Astron. Soc., 345, p. 847
  • Dar, A., Plaga, R., (1999) Astron. Astrophys., 349, p. 259
  • Berezinsky, V., Kachelriess, M., Vilenkin, A., (1997) Phys. Rev. Lett., 79, p. 4302
  • Kuz'min, V.A., Rubakov, V.A., (1998) Phys. Atom. Nucl., 61, p. 1028
  • Birkel, M., Sarkar, S., (1998) Astropart. Phys., 9, p. 297
  • Pierre Auger Collaboration <arXiv:0712.1147>; D. Semikoz, Pierre Auger Collaboration, in: Proceedings of the 30th International Cosmic Ray Conference, Mérida, México, 2007. <arXiv:0706.2960>; Hill, C.T., (1983) Nucl. Phys. B, 224, p. 469
  • D.N. Schramm, C.T. Hill, in: Proceedings of the 18th International Cosmic Ray Conference, Bangalore, India, vol. 2, 1983, p. 393; Bhattacharjee, P., Sigl, G., (2000) Phys. Rept., 327, p. 109. , For a review see
  • Arons, J., (2003) Astrophys. J., 589, p. 871
  • Boldt, E., Ghosh, P., (1999) Mon. Notice Royal Astron. Soc., 307, p. 491
  • Anchordoqui, L.A., Romero, G.E., Combi, J.A., (1999) Phys. Rev. D, 60, p. 103001
  • Waxman, E., (1995) Astrophys. J., 452, pp. L1
  • Vietri, M., (1995) Astrophys. J., 453, p. 883
  • Kang, H., Ryu, D., Jones, T.W., (1996) Astrophys. J., 456, p. 422
  • Kang, H., Rachen, J.P., Biermann, P.L., (1997) Mon. Notice Royal Astron. Soc., 286, p. 257
  • Biermann, P.L., Strittmatter, P., (1987) Astrophys. J., 322, p. 643
  • Ostrowski, M., (1999) Astron. Astrophys., 335, p. 134
  • Lyutikov, M., Ouyed, R., (2007) Astropart. Phys., 27, p. 473
  • Rachen, J.P., Biermann, P.L., (1993) Astron. Astrophys., 272, p. 161
  • Israel, F.P., (1998) Astron. Astrophys. Rev., 8, p. 237
  • Romero, G.E., Combi, J.A., Perez Bergliaffa, S.E., Anchordoqui, L.A., (1996) Astropart. Phys., 5, p. 279

Citas:

---------- APA ----------
(2008) . Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei. Astroparticle Physics, 29(3), 188-204.
http://dx.doi.org/10.1016/j.astropartphys.2008.01.002
---------- CHICAGO ----------
Multitudinario:447. "Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei" . Astroparticle Physics 29, no. 3 (2008) : 188-204.
http://dx.doi.org/10.1016/j.astropartphys.2008.01.002
---------- MLA ----------
Multitudinario:447. "Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei" . Astroparticle Physics, vol. 29, no. 3, 2008, pp. 188-204.
http://dx.doi.org/10.1016/j.astropartphys.2008.01.002
---------- VANCOUVER ----------
Multitudinario:447. Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei. Astropart. Phys. 2008;29(3):188-204.
http://dx.doi.org/10.1016/j.astropartphys.2008.01.002