A morphology-density relation for clusters of galaxies
Journal Article
·
· Astrophysical Journal; (USA)
- Michigan Univ., Ann Arbor (USA) Toronto Univ. (Canada)
The discovery of a morphology-density relation for clusters of galaxies is reported, analogous to the dependence of galaxy types on local galaxy density. The relationship is such that flattened and linear clusters (Rood-Sastry types F and L) occur predominantly in rich supercluster environments, while rounder or more amorphous clusters (Rood-Sastry types C and I) are much more prevalent in low-density regions. A clear trend in the relative fractions of C+I and L+F clusters is seen in denser and denser regions. The occurrence of cD and B type clusters, on the other hand, is independent of local cluster density. Bautz-Morgan classifications also show no correlation with cluster environment. 61 refs.
- OSTI ID:
- 6315623
- Journal Information:
- Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 363; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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