Ultra High Energy Cosmic Rays from charged black holes. A new theoretical possibility?

Details Ultra High Energy Cosmic Rays from charged black holes. A new theoretical possibility? Ultra High Energy Cosmic Rays from charged black holes. A new theoretical possibility?

2005-05-31

arxiv.org/abs/astro-ph/0505616v2

XXXX Rencontres de Moriond, Italie (2005)

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures

Scientific paper

In General Relativity, there is a new field of activity concerning the study of charged stars. In a recent paper, Ray et al. have shown the possibility that the collapse of a charged star could form a charged black hole before all the charge leaves the system. In this field of view we propose a new model for UHECR and we will show that it is possible to accelerate cosmic rays up to EeV. In this talk we will compute the UHECR flux, the charged black hole density and the energy spectrum associated with them in order to reproduce experimental data. We will see that we need only a small number of these hidden sources in order to account for observed UHECR properties and we will study the limits on charge and mass of black holes.

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