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https://repositorio.ufba.br/handle/ri/14865
metadata.dc.type: | Artigo de Periódico |
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. |
metadata.dc.creator: | Pepe, Iuri Muniz Abreu, P. Aglietta, M. Ahlers, M. Ahn, E. J. Albuquerque, Ivone Freire da Mota e Allard, D. Allekotte, I. Allen, J. |
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. |
Keywords: | Cosmic rays Galaxy: disk Methods: data analysis |
metadata.dc.publisher.country: | Brasil |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/14865 |
Issue Date: | 2012 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
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I. M. Pepe.pdf_5 | 1,77 MB | Adobe PDF | View/Open |
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