A search for point sources of EeV neutrons

0387249 - FZÚ 2013 RIV US eng J - Článek v odborném periodiku
Abreu, P. - Aglietta, M. - Ahlers, M. - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Mandát, Dušan - Nečesal, Petr - Nožka, Libor - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - Schovancová, Jaroslava - Schovánek, Petr - Šmída, Radomír - Trávníček, Petr - Vícha, Jakub … celkem 509 autorů
A search for point sources of EeV neutrons.
Astrophysical Journal. Roč. 760, č. 2 (2012), s. 1-11. ISSN 0004-637X. E-ISSN 1538-4357
Grant CEP: GA MŠMT LC527; GA MŠMT(CZ) 1M06002; GA AV ČR KJB100100904; GA MŠMT(CZ) LA08016
Výzkumný záměr: CEZ:AV0Z10100502; CEZ:AV0Z10100522
Klíčová slova: cosmic rays * Galaxy * disk * methods * data analysis
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 6.733, rok: 2012
http://iopscience.iop.org/0004-637X/760/2/148/pdf/0004-637X_760_2_148.pdf

A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The search covers from -90 degrees to +15 degrees in declination using four different energy ranges above 1 EeV (10(18) eV). The method used in this search is more sensitive to neutrons than to photons. The upper limit on a neutron flux is derived for a dense grid of directions for each of the four energy ranges. These results constrain scenarios for the production of ultrahigh energy cosmic rays in the Galaxy.
Trvalý link: http://hdl.handle.net/11104/0216382