Inverse Compton Gamma-Ray Background Due to Supernova Remnants

Details Inverse Compton Gamma-Ray Background Due to Supernova Remnants Inverse Compton Gamma-Ray Background Due to Supernova Remnants

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.2433b&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

2

Scientific paper

We study the contribution of the source cosmic rays (SCRs), confined in supernova remnants (SNRs), to the diffuse high energy gamma-ray emission above 1 GeV from the Galactic disk. Gamma-rays produced by the SCRs have a much harder spectrum compared with those generated by the Galactic cosmic rays (GCRs) which uniformly o ccupy a much larger residence volume. The contribution of the SCRs becomes dominant at gamma-ray energies above 10 GeV and at TeV energies it exceeds the flux due to nuclear GCRs by more than one order of magnitude. Accurate measurements of the diffuse Galactic gamma-ray emission at TeV-energies can provide an important test for the CR origin from such sources.

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