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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/14865

Title: A search for point sources of eev neutrons
Other Titles: Astrophysical Journal
Authors: Pepe, Iuri Muniz
Abreu, P.
Aglietta, M.
Ahlers, M.
Ahn, E. J.
Albuquerque, Ivone Freire da Mota e
Allard, D.
Allekotte, I.
Allen, J.
Keywords: Cosmic rays;Galaxy: disk;Methods: data analysis
Issue Date: 2012
Abstract: 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° to +15° in declination using four different energy ranges above 1 EeV (1018 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.
Description: p. 1-11
URI: http://repositorio.ufba.br/ri/handle/ri/14865
ISSN: 0004-637X
Appears in Collections:Artigos Publicados em Periódicos (Quimica)

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