A study of the frequency of substructure in 80 Abell clusters based on optical redshift data

Details A study of the frequency of substructure in 80 Abell clusters based on optical redshift data A study of the frequency of substructure in 80 Abell clusters based on optical redshift data

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.542r&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present the results of a study of substructure in a sample of Abell clusters for which we have redshift information and galaxy photometry. This sample was not gathered from the literature all the data were gathered as part of an ESO key program. We compute the frequency of substructure in our sample using a battery of tests described by Pinkney etal (1996). We also compare the frequency of substructure in our sample with that found in a sample of clusters containing wide angle tail radio sources as a test of the hypothesis that these WAT clusters have undergone recent mergers. The determination of Omega from cluster substructure is also discussed.

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