The angular momentum distribution within haloes in different dark matter models | |
Chen, DN; Jing, YP | |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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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. |
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