Abstract
If, as recently proposed by Farrar and Piran, Cen A is the source of cosmic rays detected above the Greisen-Zatsepin-Kuz’min cutoff, neutrons are ≈ 140 more probable than protons to be observed along its line of sight. This is because the proton flux is rendered nearly isotropic by O(μG) intergalactic magnetic fields. With the anticipated aperture of the Southern Auger Observatory, one may expect on the order of 2 neutron events/year above 1020 eV in the line of sight of Cen A.
Keywords
Cen A, high energy cosmic rays, Auger test, Greisen-Zatsepin-Kuz’min cutoff
Subject Categories
Cosmic rays, Astrophysics, Neutrons, Protons
Disciplines
Physics
Publication Date
2001
Permanent URL
Recommended Citation
Anchordoqui, Luis A.; Goldberg, Haim; and Weiler, Thomas J., "Auger test of the Cen A model of highest energy cosmic rays" (2001). Physics Faculty Publications. Paper 35. http://hdl.handle.net/2047/d20000388
Click button above to open, or right-click to save.
Notes
Originally posted at http://arxiv.org/abs/astro-ph/0103043v3. Preprint of an article published in Physical Review Letters, v.87 no.8, 2001.