Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 325, Issue 3, Pages 1053-1064Publisher
BLACKWELL SCIENCE LTD
DOI: 10.1046/j.1365-8711.2001.04509.x
Keywords
methods : numerical; cosmology : theory; dark matter
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We use large volume, high resolution, N-body simulations of three different Lambda CDM models, with different clustering strengths, to generate dark-matter halo merging histories. Over the reliable range of halo masses, roughly galaxy groups to rich clusters of galaxies, we quantify the number density of major mergers for two different time intervals and compare them with analytic predictions based on the extended Press-Schechter theory.
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