Redshifts and Distribution of ACO Clusters of Galaxies

Details Redshifts and Distribution of ACO Clusters of Galaxies Redshifts and Distribution of ACO Clusters of Galaxies

2004-07-05

arxiv.org/abs/astro-ph/0407097v1

Astronomy and Astrophysics

Astrophysics

4 pages, no figures, uses asp2004.sty; to appear in "Nearby Large-Scale Structures and the Zone of Avoidance", eds. A.P. Faira

Scientific paper

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 N_z>=3 galaxies measured. We provide velocity dispersions (sigma_V) for 1875 (sub)clusters towards 1353 unique ACO clusters. The median sigma_V is 650 km/s for A-(sub)clusters and 575 km/s for S-(sub)clusters, and sigma_V clearly increases with both, N_z 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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