2 papers
astro-ph2001
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…
astro-ph1999
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…