Spectra and Mass Composition of Ultrahigh-Energy Cosmic Rays from Point Sources
High Energy Astrophysical Phenomena
2012-04-26 v2
Abstract
We present spectra and mass composition of cosmic rays incoming to the Earth in the energy range (0.5-2)10^20 eV. As their sources we consider Seyfert galaxies located at distances < 40 Mpc, following an acceleration model for such moderate-power objects. Mass composition of the particles at sources is assumed to be mixed. Generation spectra are described by a function E^(-g0), where g0 is an arbitrary parameter. It is shown that the assumptions adopted make it possible to describe experimental data provided by HiRes and Pierre Auger Observatory, using different values of g0.
Keywords
Cite
@article{arxiv.1112.5523,
title = {Spectra and Mass Composition of Ultrahigh-Energy Cosmic Rays from Point Sources},
author = {Nikolai N. Kalmykov and Olga P. Shustova and Anna V. Uryson},
journal= {arXiv preprint arXiv:1112.5523},
year = {2012}
}
Comments
16 pages, 10 figures