%0 Journal Article
%T The Kinematics of Emission-Line Galaxies in Clusters from ENACS
%A A. Biviano
%A P. Katgert
%A A. Mazure
%A M. Moles
%A R. den Hartog
%A P. Focardi
%J Physics
%D 1995
%I arXiv
%X Summary - By using the data from the ESO Nearby Abell Cluster Survey (ENACS), we have studied the properties of emission-line galaxies (ELG) in clusters. The fraction of ELG in clusters is 16~\%; this fraction is slightly dependent on the cluster velocity dispersion, being larger for ``colder'' systems. ELG tend to occur more frequently than other cluster galaxies in substructures. However, only a minor cluster fraction has an ELG population with a mean velocity significantly different from that of the overall cluster population. The velocity distribution of cluster ELG is broader than that of the other cluster galaxies, which translates in a larger observed velocity dispersion. The velocity distribution for ELG in the inner cluster regions suggests that ELG are on mostly radial orbits.
%U http://arxiv.org/abs/astro-ph/9511050v1