NAOC Open IR  > 星系宇宙学研究部
The statistics of the subhalo abundance of dark matter haloes
Gao, L.1,2; Frenk, C. S.2; Boylan-Kolchin, M.3; Jenkins, A.2; Springel, V.3,4; White, S. D. M.3
2011-02-01
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号410期号:4页码:2309-2314
摘要We study the population statistics of the surviving subhaloes of Lambda CDM dark matter haloes using a set of very high resolution N-body simulations. These include both simulations of representative regions of the Universe and ultra-high resolution resimulations of individual dark matter haloes. We find that more massive haloes tend to have a larger mass fraction in subhaloes. For example, cluster size haloes typically have 7.5 per cent of the mass within R-200 in substructures of fractional mass larger than 10(-5), which is 25 per cent higher than galactic haloes. There is, however, a large variance in the subhalo mass fraction from halo to halo, whereas the subhalo abundance shows much higher regularity. For dark matter haloes of fixed mass, the subhalo abundance decreases by 30 per cent between redshift 2 and 0. The subhalo abundance function correlates with the host halo concentration parameter and formation redshift. However, the intrinsic scatter is not significantly reduced for narrow ranges of concentration parameter or formation redshift, showing that they are not the dominant parameters that determine the subhalo abundance in a halo.
关键词Methods: Numerical Galaxies: Haloes Dark Matter
DOI10.1111/j.1365-2966.2010.17601.x
收录类别SCI
语种英语
WOS记录号WOS:000286211000017
引用统计
被引频次:48[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7967
专题星系宇宙学研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Durham, Sci Labs, Dept Phys, Inst Computat Cosmol, Durham DH1 3LE, England
3.Max Planck Inst Astrophys, D-85748 Garching, Germany
4.Heidelberg Inst Theoret Studies, D-69118 Heidelberg, Germany
推荐引用方式
GB/T 7714
Gao, L.,Frenk, C. S.,Boylan-Kolchin, M.,et al. The statistics of the subhalo abundance of dark matter haloes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2011,410(4):2309-2314.
APA Gao, L.,Frenk, C. S.,Boylan-Kolchin, M.,Jenkins, A.,Springel, V.,&White, S. D. M..(2011).The statistics of the subhalo abundance of dark matter haloes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,410(4),2309-2314.
MLA Gao, L.,et al."The statistics of the subhalo abundance of dark matter haloes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 410.4(2011):2309-2314.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Gao, L.]的文章
[Frenk, C. S.]的文章
[Boylan-Kolchin, M.]的文章
百度学术
百度学术中相似的文章
[Gao, L.]的文章
[Frenk, C. S.]的文章
[Boylan-Kolchin, M.]的文章
必应学术
必应学术中相似的文章
[Gao, L.]的文章
[Frenk, C. S.]的文章
[Boylan-Kolchin, M.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。