Detailed Morphology of the Rich Concentrated Galaxy Clusters

Abstract

The results of the detailed analysis of the 2D distribution of galaxies in 28 rich galaxy clusters with signicant concentration to the cluster center are present. The analysis was executed in these directions: the detection of regular substructures and peculiarities in the galaxy distribution. The role of brightest cluster members was taken into account too. The input data were selected from The Catalogue of Galaxy Clusters and Groups and list of galaxies of Muenster Red Sky Survey. Concentrated galaxy clusters are evolved, virialized structures. Substructures in this type of clusters must be feeble marked. Nevertheless we detected signicant part of concentrated galaxy clusters having dierent kinds of peculiarities, namely crossing and divaricating laments or X and Y-type peculiarities, as well as curved strips and short dense chains. 2 clusters having extremely density of galaxies were attributed as superconcentrated/compact type.