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Paper: The evolution of groups and clusters
Volume: 209, Small Galaxy Groups, IAU Colloquium 174
Page: 428
Authors: Gottlöber, S.; Klypin, A.; Kravtsov, A. V.; Turchaninov, V.
Abstract: Using high resolution N -body simulations we study the formation and evolution of clusters and groups in a &Lambda CDM cosmological model. Groups of galaxies already form before z = 4. Merging of groups and accretion leads to cluster formation at z &lt&sim2. Some of the groups merge into large isolated halos.
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