Skip to main content
Article thumbnail
Location of Repository

Update on tests of the Cen A neutron-emission model of highest energy cosmic rays

By Luis A. Anchordoqui, Haim Goldberg and Thomas J. Weiler

Abstract

We propose that neutron emission from Cen A dominates the cosmic ray sky at the high end of the spectrum. Neutrons that are able to decay generate proton diffusion fronts, whereas those that survive decay produce a spike in the direction of the source. We use recent data reported by the Pierre Auger Collaboration to normalize the injection spectrum and estimate the required luminosity in cosmic rays. We find that such a luminosity, L_{CR} ~ 5 x 10^{40} erg/s, is considerably smaller than the bolometric luminosity of Cen A, L_{bol} ~ 10^{43} erg/s. We compute the incoming current flux density as viewed by an observer on Earth and show that the anisotropy amplitude is in agreement with data at the 1\sigma level. Regardless of the underlying source model, our results indicate that after a decade of data taking the Pierre Auger Observatory will be able to test our proposal.Comment: To be published in PR

Topics: Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Phenomenology
Year: 2011
DOI identifier: 10.1103/PhysRevD.84.067301
OAI identifier: oai:arXiv.org:1103.0536
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://arxiv.org/abs/1103.0536 (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.