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arXiv 1412.7800astro-ph.HE
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超新星遗迹中银河系宇宙射线的起源

Origin of Galactic Cosmic Rays from Supernova Remnants

E. G. Berezhko

摘要:

我们分析了最近的测量结果的银河宇宙线(GCRs)的能量谱和光谱的非热发射超新星遗迹(SNRs),以确定其与GCR起源的SNRs的一致性。结果表明,测量的初级和次级CR核能谱以及观测到的正电子-电子比与GCR的起源一致,直到SNR中的能量为10^17 eV。现有的SNR发射数据提供了证据,有效的CR生产的SNR伴随着显着的磁场放大。在某些情况下,探测到的伽马射线发射的性质很难确定,因为关键的SNR参数是未知的或约束很差。

英文摘要:

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.

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