Extragalactic X-ray sources and the diffuse X-ray background

Details Extragalactic X-ray sources and the diffuse X-ray background Extragalactic X-ray sources and the diffuse X-ray background

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979rspsa.366..391w&link_type=abstract

(Royal Society, Discussion on Some Recent Results in X-Ray Astronomy, London, England, Apr. 25, 26, 1978.) Royal Society (London

Astronomy and Astrophysics

Astronomy

3

Ariel 5 Satellite, Background Radiation, Intergalactic Media, X Ray Sources, Active Galaxies, Astronomical Maps, Diffuse Radiation, Flux Density, Galactic Clusters, Graphs (Charts), Seyfert Galaxies, Sky Surveys (Astronomy), Star Distribution, Stellar Luminosity, X Ray Astronomy

Scientific paper

Ariel 5 sky survey results relating to the spatial distribution of extragalactic X-ray sources are examined. The form of the X-ray source counts is considered, and the observed distribution of X-ray luminosity in a statistical sample of 2A sources is described. The X-ray luminosity functions of the two main classes of identified sources are then determined. These luminosity functions are used to predict the form of the X-ray source counts at low fluxes and to estimate the contribution of clusters of galaxies and active galaxies to the diffuse X-ray background in the energy range from 2 to 10 keV.

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