The structure and evolution of X-ray clusters of galaxies

Details The structure and evolution of X-ray clusters of galaxies The structure and evolution of X-ray clusters of galaxies

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979msfc.symp..409j&link_type=abstract

In NASA. Marshall Space Flight Center HEAO Sci. Symp. p 409-421 (SEE N80-14977 05-88)

Astronomy and Astrophysics

Astronomy

Galactic Clusters, Galactic Evolution, Heao 2, Spaceborne Astronomy, X Ray Sources, Bremsstrahlung, Brightness, Proportional Counters, Radio Sources (Astronomy)

Scientific paper

The structure of clusters is described from observations at the Einstein Observatory. It was concluded that the nature of the X-ray emission is complex and varies from broad and highly clumped to smooth and centrally peaked. The clusters whose emission is clumped tend to be rich in spirals and to have X-ray temperatures in the few kilovolt range and low velocity dispersions. The smooth centrally peaked clusters are spiral poor, and have higher temperatures and larger velocity dispersions. For many of the clusters, the emission is irregular and cannot be described by the simple, spherically symmetric models for a hot isothermal or adiabatic gas. For these clusters, the low density, intracluster gas is influenced by the potential of individual bright galaxies.

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