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Substructure in Clusters of Galaxies

Published online by Cambridge University Press:  04 August 2017

M. J. Geller
Affiliation:
Harvard-Smithsonian Center for Astrophysics
T. C. Beers
Affiliation:
Harvard-Smithsonian Center for Astrophysics

Extract

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Rich galaxy clusters containing multiple condensations are common. This subclustering affects many cluster properties and provides insight into cluster evolution.

“Clumpy” clusters of galaxies are interesting, in part, because N-body simulations indicate that multi-component substructure occurs before complete collapse and virialization (White 1976). Interesting systems can be identified both from x-ray surface brightness maps (Forman et al. 1981) and from contour maps based on galaxy counts (Geller and Beers 1982).

Type
Research Article
Copyright
Copyright © Reidel 1983 

References

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