An empirical model for the star formation history in dark matter haloes
文献类型：期刊论文
| 作者 | Lu, Zhankui1; Mo, H. J.1; Lu, Yu2; Katz, Neal1; Weinberg, Martin D.1; van den Bosch, Frank C.3; Yang, Xiaohu4,5 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2014-04-01 |
| 卷号 | 439期号:2页码:1294-1312 |
| 关键词 | methods: statistical galaxies: formation galaxies: haloes |
| 通讯作者 | 杨小虎 |
| 英文摘要 | We develop an empirical approach to infer the star formation rate in dark matter haloes from the galaxy stellar mass function (SMF) at different redshifts and the local cluster galaxy luminosity function (CGLF), which has a steeper faint end relative to the SMF of local galaxies. As satellites are typically old galaxies which have been accreted earlier, this feature can cast important constraint on the formation of low-mass galaxies at high redshift. The evolution of the SMFs suggests the star formation in high-mass haloes (> 10(12) h(-1) M-circle dot) has to be boosted at high redshift beyond what is expected from a simple scaling of the dynamical time. The faint end of the CGLF implies a characteristic redshift z(c) approximate to 2 above which the star formation rate in low-mass haloes with masses < 10(11) h(-1) M-circle dot must be enhanced relative to that at lower z. This is not directly expected from the standard stellar feedback models. Also, this enhancement leads to some interesting predictions, for instance, a significant old stellar population in present-day dwarf galaxies with M-star < 10(8) h(-2) M-circle dot and steep slopes of high-redshift stellar mass and star formation rate functions. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | STELLAR MASS FUNCTION ; DWARF GALAXY POPULATION ; LYMAN-BREAK GALAXIES ; STEEP FAINT-END ; LUMINOSITY FUNCTION ; ANALYTIC MODEL ; COMPREHENSIVE ANALYSIS ; ACCRETION HISTORIES ; FORMATION RATES ; LOCAL UNIVERSE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000334114000007 |
| 公开日期 | 2015-02-14 |
| 源URL | [http://119.78.226.72//handle/331011/15832]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA 2.Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94309 USA 3.Yale Univ, Dept Astron, New Haven, CT 06520 USA 4.Shanghai Jiao Tong Univ, Ctr Astron & Astrophys, Shanghai 200240, Peoples R China 5.Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Zhankui,Mo, H. J.,Lu, Yu,et al. An empirical model for the star formation history in dark matter haloes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,439(2):1294-1312. |
| APA | Lu, Zhankui.,Mo, H. J..,Lu, Yu.,Katz, Neal.,Weinberg, Martin D..,...&Yang, Xiaohu.(2014).An empirical model for the star formation history in dark matter haloes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,439(2),1294-1312. |
| MLA | Lu, Zhankui,et al."An empirical model for the star formation history in dark matter haloes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 439.2(2014):1294-1312. |
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