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Type: Journal article
Title: A Search for point sources of Eev neutrons
Author: Barber, K.
Bellido Caceres, J.
Clay, R.
Cooper, M.
Dawson, B.
Harrison, T.
Herve, A.
Holmes, V.
Sorokin, J.
Wahrlich, P.
Whelan, B.
Citation: The Astrophysical Journal: an international review of astronomy and astronomical physics, 2012; 760(2):1-11
Publisher: Univ Chicago Press
Issue Date: 2012
ISSN: 0004-637X
Statement of
The Pierre Auger Collaboration and P. Abreu... K. B. Barber... J. A. Bellido... R. W. Clay... M. J. Cooper... B. R. Dawson... T. A. Harrison... A. E. Herve... V. C. Holmes... J. Sorokin... P. Wahrlich... B. J. Whelan... et al.
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. © 2012. The American Astronomical Society. All rights reserved..
Keywords: cosmic rays
Galaxy: disk
methods: data analysis
Description: Extent: 11p.
Rights: © 2012. The American Astronomical Society
DOI: 10.1088/0004-637X/760/2/148
Grant ID: ARC
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