Anisotropy of Ultra High Energy Cosmic Rays in the Dark Matter Halo Model

Details Anisotropy of Ultra High Energy Cosmic Rays in the Dark Matter Halo Model Anisotropy of Ultra High Energy Cosmic Rays in the Dark Matter Halo Model

1998-10-19

arxiv.org/abs/astro-ph/9810277v3

Phys.Lett. B449 (1999) 237-239

Astronomy and Astrophysics

Astrophysics

Comparison with AGASA data is added

Scientific paper

10.1016/S0370-2693(99)00053-2

The harmonic analysis of anisotropy of Ultra High Energy Cosmic Rays is performed for the Dark Matter halo model. In this model the relic superheavy particles comprise part of the Dark Matter and are concentrated in the Galactic halo. The Ultra High Energy Cosmic Rays are produced by the decays of these particles. Anisotropy is caused by the non-central position of the Sun in the Galactic halo. The calculated anisotropy is in reasonable agreement with the AGASA data. For more precise test of the model a comparison of fluxes in the directions of the Galactic Center and Anticenter is needed.

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