Contribution to the extragalactic X-ray background from clusters of galaxies

Details Contribution to the extragalactic X-ray background from clusters of galaxies Contribution to the extragalactic X-ray background from clusters of galaxies

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8027267z&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Background Radiation, Extraterrestrial Radiation, Galactic Clusters, X Ray Astronomy, Galactic Evolution, Galactic Radiation, Line Spectra, Luminous Intensity, Red Shift, Uhuru Satellite

Scientific paper

The contribution to the extragalactic background from clusters of galaxies in the 2-6 keV band was computed. Two different cluster luminosity functions and two different models for cluster evolution were considered and a cluster X-ray luminosity-temperature relationship of the type L alpha Talpha +1/2 was assumed. It is found that the overall contribution of clusters to the background is approximately 10% of the total observed X-ray extragalactic approximately 150 eV is superimposed on the observed background. This result is quite insensitive to the different set of assumptions made in the calculation.

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