Gamma-Ray Observations of Clusters of Galaxies

Details Gamma-Ray Observations of Clusters of Galaxies Gamma-Ray Observations of Clusters of Galaxies

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...186.0704a&link_type=abstract

American Astronomical Society, 186th AAS Meeting, #07.04; Bulletin of the American Astronomical Society, Vol. 27, p.821

Astronomy and Astrophysics

Astronomy

Scientific paper

High energy gamma-ray data of a few selected clusters of galaxies, observed by the SAS-2 mission, were analyzed. The clusters include Coma, Virgo, A401, A754, A1060, A1367, A2142 and A2319. The 2 sigma upper limits on the emission from these clusters range from 3 times 10(-7) to 3 times 10(-6) ph cm(-2) s(-1) in the energy range (35-200) MeV. We discuss gamma-ray contributions from the intracluster gas, dark matter and individual galaxies. Implications of SAS-2 and EGRET results for cosmic ray fluxes and magnetic field values are also discussed. star Visiting Fellow from Cukurova University, Adana, Turkey

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