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A Morphological Classification of Clusters of Galaxies from Einstein Images

Published online by Cambridge University Press:  14 August 2015

C. Jones  and
W. Forman
C. Jones
Affiliation:
Harvard-Smithsonian Center for Astrophysics
W. Forman
Affiliation:
Harvard-Smithsonian Center for Astrophysics

Extract

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The earliest Uhuru observations showed that cluster X-ray sources were not associated with single individual galaxies but were extended sources (Gursky et al. 1971, Kellogg et al. 1972, and Forman et al. 1972). The detection of iron line emission from X-ray spectroscopic observations (Mitchell et al. 1976 and Serlemitsos et al. 1977) showed both that the dominant X-ray emission process was thermal bremsstrahlung and that the gas had been processed through stellar systems before being injected into the intracluster medium.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 97: Extragalactic Radio Sources , 1982 , pp. 97 - 106
Copyright
Copyright © Reidel 1982 

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