Evolution of dark-matter haloes in a variety of dark-energy cosmologies

被引：52
作者：
Bartelmann, M
Dolag, K
Perrotta, F
Baccigalupi, C
Moscardini, L
Meneghetti, M
Tormen, G
机构：
[1] Heidelberg Univ, ITA, D-69121 Heidelberg, Germany
[2] Univ Padua, Dipartimento Astron, I-35122 Padua, Italy
[3] SISSA, I-34014 Trieste, Italy
[4] Univ Bologna, Dipartimento Astron, I-40126 Bologna, Italy
来源：
NEW ASTRONOMY REVIEWS | 2005年 / 49卷 / 2-6期
关键词：
D O I：
10.1016/j.newar.2005.01.014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
High resolution, numerical simulations of 17 cluster-sized dark-matter haloes in eight different cosmologies with and without dynamical dark-energy confirm the picture that core halo densities are imprinted early during their formation by the mean cosmological density. Quite independent of cosmology, halo concentrations have a log-normal distribution with a scatter of similar to 0.2 about the mean. We propose a simple scaling relation for halo concentrations in dark-energy cosmologies. (C) 2005 Published by Elsevier B.V.
引用
收藏
页码：199 / 203
页数：5
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