Talk detail

Participant	Einasto, Maret
Institution	Tartu Observatory - Observatooriumi - Tõravere - Estonia - Estonia

Session	OC4	Accepted		Order	Time
Talk	Oral abstract	Title	Multimodality of rich clusters from the SDSS DR8 within the supercluster-void network
Co-authors
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, and clusters in superclusters have higher probability to have substructure than isolated clusters. The superclusters can be divided into two main morphological types, spiders and filaments. 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.