Cosmic-Ray Energetics in the Supernova Remnant Cassiopeia A

Details Cosmic-Ray Energetics in the Supernova Remnant Cassiopeia A Cosmic-Ray Energetics in the Supernova Remnant Cassiopeia A

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001astl...27..292s&link_type=abstract

Astronomy Letters, vol. 27, p. 292-296 (2001)

Astronomy and Astrophysics

Astronomy

1

Cosmic Rays, Nonthermal Emission, Supernovae And Supernova Remnants

Scientific paper

Based on the observed radio spectrum for the supernova remnant Cassiopeia A, we have established that it represents synchrotron radiation of relativistic electrons with a nonpower-law energy spectrum in the form of Kaplan-Tsytovich's standard distribution. The total density of relativistic electrons is 10^{-3} cm^{-3}, only 20% of which form the radio spectrum. The particle number ratio of the proton-nuclear and electron cosmic-ray components inside the shell differs significantly from the mean Galactic ratio (100) and probably does not exceed unity.

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