H. Andernach, K. Alamo-Martinez, R. Coziol, E. Tago
Published 2006-03-12Version 1
We identified Brightest Cluster Members (BCM) on DSS images of 1083 Abell clusters, derived their individual and host cluster redshifts from literature and determined the BCM ellipticity. Half the BCMs move at a speed higher than 37 % of the cluster velocity dispersion sigma_{cl}, suggesting that most BCMs are part of substructures falling into the main cluster. Both, the BCM's velocity offset in units of sigma_{cl}, and BCM ellipticity, weakly decrease with cluster richness.
Comments: 2 pages, 2 figures, Proc. ESO Workshop "Groups of galaxies in the nearby Universe", Santiago, Chile, 5-9 Dec. 2005, ESO Astrophysics Symposia, eds. I. Saviane, V. Ivanov & J. Borissova, Springer-Verlag
The Alignment Effect of Brightest Cluster Galaxies in the SDSS
Conduction and the Star-Formation Threshold in Brightest Cluster Galaxies
An imaging survey of a uniform sample of Brightest Cluster Galaxies and Intracluster Light
