Origin of Galactic Cosmic Rays from Supernova Remnants
arXiv:1412.7800 · doi:10.1016/j.nuclphysbps.2014.10.003
Abstract
We analyze the results of recent measurements of Galactic cosmic ray (GCRs) energy spectra and the spectra of nonthermal emission from supernova remnants (SNRs) in order to determine their consistency with GCR origin in SNRs. It is shown that the measured primary and secondary CR nuclei energy spectra as well as the observed positron-to-electron ratio are consistent with the origin of GCRs up to the energy 10^17 eV in SNRs. Existing SNR emission data provide evidences for efficient CR production in SNRs accompanied by significant magnetic field amplification. In some cases the nature of the detected gamma-ray emission is difficult to determine because key SNR parameters are not known or poorly constrained.
arXiv comment13 pages, 9 figures; Proceedings of the conference "Cosmic ray origin: beyond the standard models", San Vito di Cadore (Dolomites, Italy), March 2014. Published in Nuclear Physics B Proceedings Supplement
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- Re-examination of the Expected gamma-ray emission of supernova remnant SN 1987A