期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 325, 期 3, 页码 1053-1064出版社
BLACKWELL SCIENCE LTD
DOI: 10.1046/j.1365-8711.2001.04509.x
关键词
methods : numerical; cosmology : theory; dark matter
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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