Multimodality of rich clusters from the SDSS DR8 within the supercluster-void network (talk at MG13 meeting)

TL;DR

This study investigates how the environment, particularly supercluster morphology, influences the multimodality and properties of galaxy clusters using SDSS DR8 data.

Contribution

It reveals the relationship between supercluster morphology and galaxy cluster properties, highlighting the environmental impact on cluster multimodality.

Findings

Multimodal clusters are in higher density environments.

Clusters in spider superclusters have more substructure.

Supercluster environment affects galaxy cluster properties.

Abstract

We study the relations between the multimodality of galaxy clusters drawn from the SDSS DR8 and the environment where they reside. We find that multimodal clusters reside in higher density environment than unimodal clusters. We determine morphological types of superclusters and show that clusters in superclusters of spider morphology have higher probabilities to have substructure and larger peculiar velocities of their main galaxies than clusters in superclusters of filament morphology. Our study shows the importance of the role of superclusters as high density environment which affects the properties of galaxy systems in them.