Ultra-High Energy Cosmic Rays and Diffuse Photon Spectrum
Astrophysics
2007-05-23 v1
Abstract
It is argued that if extragalactic magnetic fields are smaller than 2x10^{-12} G the flux of ultra-high energy photons of (a few)x10^{-1} eV cm^{-2}s^{-1}sr^{-1} predicted in the top-down models of UHE CR implies similar flux of the diffuse photons in the energy range 10^{15}-10^{17} eV, which is close to the existing experimental limit.
Cite
@article{arxiv.astro-ph/9909244,
title = {Ultra-High Energy Cosmic Rays and Diffuse Photon Spectrum},
author = {P. G. Tinyakov},
journal= {arXiv preprint arXiv:astro-ph/9909244},
year = {2007}
}
Comments
Talk given at XI Rencontres de Blois. 3 pages, no figures