Modeling Source Spectra and Composition of Ultrahigh Energy Cosmic Rays

V. N. Zirakashvili; E. G. Klepach; S. I. Rogovaya; V. S. Ptuskin

doi:10.1134/S1063778819660529

Modeling Source Spectra and Composition of Ultrahigh Energy Cosmic Rays

Authors: Zirakashvili V.N.¹, Klepach E.G.¹, Rogovaya S.I.¹, Ptuskin V.S.¹
Affiliations:
1. Pushkov Institute of Terrestrial Magnetism
Issue: Vol 82, No 6 (2019)
Pages: 812-815
Section: Elementary Particles and Fields
URL: https://journals.rcsi.science/1063-7788/article/view/195018
DOI: https://doi.org/10.1134/S1063778819660529
ID: 195018

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Abstract

The inverse problem of cosmic ray transport of ultra-high energy cosmic rays is considered. The source spectrum and composition are derived based on the recent Auger data on energy spectrum, energy dependence of mean logarithm of atomic mass number and its variance. The dependence of results on the extrapolation of observable spectrum beyond energies 10²⁰ eV is investigated.