Detection of Non-Random Galaxy Orientations in X-ray Subclusters of the Coma Cluster

Abstract

This study on the Coma cluster suggests that there are deviations from a completely random galaxy orientation on small scales. Since we found a significant coincidence of hot-gas features identified in the latest X-ray observations of Coma with these local anisotropies, they may indicate regions of recent mutual interaction of member galaxies within subclusters which are currently falling in on the main cluster.

4 pages, 4 figures, 3 tables v2: Rewritten introduction, amendments to the 'Interpretation' section