27 citations · 43 across the 2 of their papers we have counts for
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GZK Photons in the Minimal Ultra High Energy Cosmic Rays Model
Graciela Gelmini, Oleg Kalashev, Dmitry V. Semikoz
In a recently proposed model the cosmic rays spectrum at energies above 10^{18} eV can be fitted with a minimal number of unknown parameters assuming that the extragalactic cosmic…
Photons as Ultra High Energy Cosmic Rays ?
O. E. Kalashev, V. A. Kuzmin, D. V. Semikoz +1
We study spectra of the Ultra High Energy Cosmic Rays assuming primaries are protons and photons, and that their sources are extragalactic. We assume power low for the injection sp…
Top-Down Models and Extremely High Energy Cosmic Rays
O. E. Kalashev, V. A. Kuzmin, D. V. Semikoz
We developed numerical code for calculation of the extragalactic component of the spectra of leptons, nucleons and -rays resulting from ``top-down'' (non-acceleration) models fo…