Redshifts and Distribution of ACO Clusters of Galaxies
Abstract
The June 2004 version of our compilation of measured redshifts for clusters in the Abell-ACO catalogue lists redshifts for 3715 clusters/subclusters in 3033 distinct (2396 A- and 637 S-) clusters, 67% of these with Nz>=3 galaxies measured. We provide velocity dispersions (sigmaV) for 1875 (sub)clusters towards 1353 unique ACO clusters. The median sigmaV is 650 km/s for A-(sub)clusters and 575 km/s for S-(sub)clusters, and sigmaV clearly increases with both, Nz and richness, and also, somewhat surprising, with later Bautz-Morgan type of the clusters. We show examples of supercluster properties based on these data.
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