A survey by HEAO 1 of clusters of galaxies. III - The complete Abell catalog

Details A survey by HEAO 1 of clusters of galaxies. III - The complete Abell catalog A survey by HEAO 1 of clusters of galaxies. III - The complete Abell catalog

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266..425j&link_type=abstract

Astrophysical Journal, Part 1, vol. 266, Mar. 15, 1983, p. 425-445.

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41

Astronomical Catalogs, Galactic Clusters, Heao 1, X Ray Sources, Astronomical Maps, Histograms, Luminosity, Red Shift, Spatial Distribution

Scientific paper

A catalog of 128 X-ray emitting clusters, including the Virgo Cluster, is presented. Ninety-one of these are new identifications. The catalog was obtained by searching the HEAO 1 survey observations for coincidences of X-ray sources with Abell clusters. The distribution of these sources in the sky has been examined in search of associations with other Abell clusters, with a null result. The X-ray luminosity has been correlated with cluster richness, but no association with Bautz-Morgan class has been found. The cluster luminosity function has been evaluated, and using this function the contribution of clusters to the diffuse X-ray background radiation has been estimated. It amounts to less than 15% at 2 keV and 3% at 6 keV.

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