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An Auger test of the Cen A model of highest energy cosmic rays

Luis A. Anchordoqui·Haim Goldberg·Thomas J. Weiler
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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 $\approx 140$ more probable than protons to be observed along its line of sight. This is because the proton flux is rendered nearly isotropic by ${\cal O}(μ$G) intergalactic magnetic fields. With the anticipated aperture of the Southern Auger Observatory, one may expect on the order of 2 neutron events/year above $10^{20}$ eV in the line of sight of Cen A.

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Luis A. Anchordoqui, Haim Goldberg, Thomas J. Weiler. 2001-06-25. An Auger test of the Cen A model of highest energy cosmic rays. https://doi.org/10.1103/physrevlett.87.081101

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