Anomaly in the cosmic-ray energy spectrum at GeV-TeV energies

被引：3

作者：

Thoudam, Satyendra ^{[1
]}

Horandel, Jorg R. ^{[1
,2
]}

机构：

[1] Radboud Univ Nijmegen, IMAPP, Dept Astrophys, NL-6500 GL Nijmegen, Netherlands

[2] Nikhef, NL-1098 XG Amsterdam, Netherlands

来源：

24TH EUROPEAN COSMIC RAY SYMPOSIUM (ECRS) | 2015年 / 632卷

关键词：

SUPERNOVA-REMNANTS; INTERSTELLAR-MEDIUM; HELIUM SPECTRA; REACCELERATION; PROTON; ORIGIN;

D O I：

10.1088/1742-6596/632/1/012026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent measurements of cosmic rays by various experiments have found that the energy spectrum of cosmic rays is harder in the TeV region than at GeV energies. The origin of the spectral hardening is not clearly understood. In this paper, we discuss the possibility that the spectral hardening might be due to the effect of re-acceleration of cosmic rays by weak shocks associated with old supernova remnants in the Galaxy.

引用

页数：6

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