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

Satyendra Thoudam; Jörg R. Hörandel

doi:10.1088/1742-6596/632/1/012026

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

Satyendra Thoudam, Jörg R. Hörandel

Physics

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

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.

Original language	British English
Article number	012026
Journal	Journal of Physics: Conference Series
Volume	632
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/632/1/012026
State	Published - 13 Aug 2015
Event	24th European Cosmic Ray Symposium, ECRS 2014 - Kiel, Germany Duration: 1 Sep 2014 → 5 Sep 2014

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abstract = "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.",

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N2 - 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.

AB - 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.

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T2 - 24th European Cosmic Ray Symposium, ECRS 2014

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

Abstract

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