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Modeling Source Spectra and Composition of Ultrahigh Energy Cosmic Rays

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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.

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Funding

The work was partially supported by the Russian Foundation of Basic Research grant no. 19-02-00043.

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Authors and Affiliations

  1. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio wave Propagation Russian Academy of Sciences, Troitsk, Moscow, 108840, Russia

    V. N. Zirakashvili, E. G. Klepach, S. I. Rogovaya & V. S. Ptuskin

Authors
  1. V. N. Zirakashvili
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  2. E. G. Klepach
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  3. S. I. Rogovaya
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  4. V. S. Ptuskin
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Correspondence to V. N. Zirakashvili.

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Zirakashvili, V.N., Klepach, E.G., Rogovaya, S.I. et al. Modeling Source Spectra and Composition of Ultrahigh Energy Cosmic Rays. Phys. Atom. Nuclei 82, 812–815 (2019). https://doi.org/10.1134/S1063778819660529

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  • DOI: https://doi.org/10.1134/S1063778819660529

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