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Gamma Rays from Galaxy Clusters

Published online by Cambridge University Press:  14 August 2015

M. Giler ,
J. Wdowczyk  and
A. W. Wolfendale
M. Giler
Affiliation:
University of Lodz, Poland
J. Wdowczyk
Affiliation:
Institute of Nuclear Research, Lodz, Poland
A. W. Wolfendale
Affiliation:
University of Durham, U.K.

Extract

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In our recent work we have shown that a good model for the highest energy cosmic rays is one where they are generated in clusters of galaxies with a relatively flat production spectrum and then propagate with an energy dependent diffusion coefficient. There is evidence for a similar flat production spectrum (γ ≃ 2.1) for both protons and electrons in our own Galaxy. Here we assume that the spectrum for clusters (specifically the VIRGO cluster) is independent of energy and an evaluation is made of the likely flux of γ-rays.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 94: Origin of Cosmic Rays , 1981 , pp. 333 - 334
Copyright
Copyright © Reidel 1981 

References

Fichtel, C.E., et al., 1977, Ap. J., 217, L9.Google Scholar
Giler, M., Wdowczyk, J., and Wolfendale, A.W., 1980a (these Procedings); 1980b, Astron. Astrophys. 84, 44.Google Scholar
Wdowczyk, J., Tkaczyk, W., and Wolfendale, A.W., 1972, J. Phys. A., 5, 1419.Google Scholar