Large-Scale Environmental Effects of the Cluster Distribution

Abstract

Using the APM cluster distribution we find interesting alignment effects: (1) Cluster substructure is strongly correlated with the tendency of clusters to be aligned with their nearest neighbour and in general with the nearby clusters that belong to the same supercluster, (2) Clusters belonging in superclusters show a statistical significant tendency to be aligned with the major axis orientation of their parent supercluster. Furthermore we find that dynamically young clusters are more clustered than the overall cluster population. These are strong indications that cluster develop in a hierarchical fashion by merging along the large-scale filamentary superclusters within which they are embedded.

to appear in the proceedings of the 2nd Hellenic Cosmology Meeting, eds M.Plionis & S.Cotsakis, Kluwer

References in corpus (2)

• X-ray Clusters of Galaxies as Tracers of Structure in the Universe
• The Cluster Substructure - Alignment Connection

Cited by in corpus (2)

• The Shape-Alignment relation in $\Lambda$CDM Cosmic Structures
• Galaxy Superclusters and Their Complexes in the Cosmic Web