The X-ray background 2-50 KEV - A superposition of known sources, or evidence of a new component

Details The X-ray background 2-50 KEV - A superposition of known sources, or evidence of a new component The X-ray background 2-50 KEV - A superposition of known sources, or evidence of a new component

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ssrv...30..101c&link_type=abstract

(European Space Agency, ESLAB Symposium on X-ray Astronomy, 15th, Amsterdam, Netherlands, June 22-26, 1981.) Space Science Revie

Astronomy and Astrophysics

Astronomy

5

Canonical Forms, Quasars, Radio Sources (Astronomy), X Ray Sources, Bremsstrahlung, Distribution Functions, Heao 2, Luminosity, Spectrum Analysis

Scientific paper

It is suggested that the contribution of the canonical quasars to the 2-50 keV X-ray background is not likely to exceed 50 percent. Consideration of X-ray selection effects results in a further reduction of the value of sensible estimators for the X-ray to optical luminosity ratio. In addition, recent counts of radio-loud and radio-quiet quasars limit the number of faint sources. A 'missing' component should make up a sizeable fraction of the X-ray background.

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