The origin of cosmic rays and the VELA gamma-ray excess

Details The origin of cosmic rays and the VELA gamma-ray excess The origin of cosmic rays and the VELA gamma-ray excess

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...198l..17h&link_type=abstract

Astrophysical Journal, vol. 198, May 15, 1975, pt. 2, p. L17-L20.

Astronomy and Astrophysics

Astrophysics

22

Cosmic Rays, Cosmology, Gamma Rays, Interstellar Radiation, Supernova Remnants, Interstellar Matter, Particle Energy, Relativistic Particles

Scientific paper

The recent observation of excess gamma-ray emission from the region around the Vela supernova remnant provides the most direct evidence so far that supernovae produce sufficient energy in relativistic particles to be the source of cosmic rays. We show that an estimate of the cosmic ray energy around Vela suggests that either only a fraction of galactic supernovae are the source of most cosmic rays, or only a fraction of the matter traversed by cosmic rays is in the interstellar medium.

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