The angular momentum distribution within haloes in different dark matter models

	The angular momentum distribution within haloes in different dark matter models
	Chen, DN; Jing, YP
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2002-10-11
卷号	336 期号:1 页码:55-65
关键词	galaxies : formation galaxies : spiral galaxies : structure cosmology : theory dark matter
英文摘要	We study the angular momentum profile of dark matter haloes for a statistical sample drawn from a set of high-resolution cosmological simulations of 256(3) particles. Two typical cold dark matter (CDM) models have been analysed, and the haloes are selected to have at least 3 x 10(4) particles in order to measure the angular momentumprofile reliably. In contrast with the recent claims of Bullock et al., we find that the degree of misalignment of angular momentum within a halo is very high. Approximately 50 per cent of haloes have more than 10 per cent of the halo mass in the mass of negative angular momentum j. After the mass of negative j is excluded, the cumulative mass function M(
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	GALAXY FORMATION ; DISK GALAXIES ; GALACTIC HALOS ; WARM ; COLD ; ORIGIN ; SIMULATIONS ; UNIVERSES ; DYNAMICS ; PROFILE
收录类别	SCI
语种	英语
WOS记录号	WOS:000178373600010
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/28308]
专题	上海天文台_星系宇宙学重点实验室
作者单位	MPI Astrophys, Shanghai Astron Observ, Partner Grp, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Chen, DN,Jing, YP. The angular momentum distribution within haloes in different dark matter models[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2002,336(1):55-65.
APA	Chen, DN,&Jing, YP.(2002).The angular momentum distribution within haloes in different dark matter models.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,336(1),55-65.
MLA	Chen, DN,et al."The angular momentum distribution within haloes in different dark matter models".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 336.1(2002):55-65.