The evolution of groups and clusters

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dc.creatorGottloeber, S.
dc.creatorKlypin, A.
dc.creatorKravtsov, A. V.
dc.creatorTurchaninov, V.
dc.date1999-09-10
dc.date.accessioned2026-07-07T02:33:12Z
dc.date.available2026-07-07T02:33:12Z
dc.descriptionUsing high resolution N-body simulations we have studied the formation and evolution of clusters and groups in a LCDM cosmological model. Groups of galaxies have been formed already before z=4. The total number of small bound systems and the total number of galaxies in these small systems rapidly decreases after z=1.5. The fraction of isolated galaxies remains approximately constant after z =1, whereas the fraction of galaxies in groups decreases. Merging of groups and accretion leads to cluster formation at z < 2. Some of the groups merge into large isolated halos.
dc.description6 pages, 3 figures, Contribution to the IAU Colloquium 174 on "Small Galaxy Groups" Turku, Finland, June 1999
dc.identifierhttps://arxiv.org/abs/astro-ph/9909185
dc.identifierhttp://arxiv.org/abs/astro-ph/9909185
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14751
dc.subjectAstrophysics
dc.titleThe evolution of groups and clusters
dc.typetext

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