Environmental Enhancement of Loose Groups around Rich Clusters of Galaxies

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dc.creatorEinasto, M.
dc.creatorEinasto, J.
dc.creatorMüller, V.
dc.creatorHeinämäki, P.
dc.creatorTucker, D. L.
dc.date2002-11-27
dc.date.accessioned2026-07-07T10:31:28Z
dc.date.available2026-07-07T10:31:28Z
dc.descriptionWe have studied the properties of Las Campanas Loose Groups in the neighbourhood of rich (Abell, APM and X-ray) clusters of galaxies. These loose groups show strong evidence of segregation measured in terms of the group richness and the group velocity dispersion: loose groups in the neighbourhood of a rich cluster are typically 2.5 times more massive and 1.6 times more luminous than groups on average, and these loose groups havevelocity dispersions 1.3 times larger than groups on average. This is evidence that the large-scale gravitational field causing the formation of rich clusters enhances the evolution of neighbouring poor systems, a phenomenon recently established in numerical simulations of group and cluster formation.
dc.description12 pages, 11 figures, 7 tables, accepted for publication in A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/0211590
dc.identifierhttp://arxiv.org/abs/astro-ph/0211590
dc.identifierAstron.Astrophys.401:851-862,2003
dc.identifierdoi:10.1051/0004-6361:20021727
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178421
dc.subjectAstrophysics
dc.titleEnvironmental Enhancement of Loose Groups around Rich Clusters of Galaxies
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