Impact of filaments on galaxy formation in their residing dark matter haloes
文献类型：期刊论文
| 作者 | Liao, Shihong1; Gao, Liang1,2 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 485期号:1页码:464-473 |
| ISSN号 | 0035-8711 |
| 关键词 | methods: numerical Galaxy: formation Galaxy: halo |
| DOI | 10.1093/mnras/stz441 |
| 英文摘要 | We use a high-resolution zoom-in hydrodynamical simulation to investigate the impact of filaments on galaxy formation in their residing dark matter haloes. A method based on the density field and the Hoshen-Kopelman algorithm is developed to identify filaments. We show that cold and dense gas pre-processed by dark matter filaments can be further accreted into residing individual low-mass haloes in directions along the filaments. Consequently, comparing with field haloes, gas accretion is very anisotropic for filament haloes. About 30 per cent of the accreted gas of a residing filament halo was pre-processed by filaments, leading to two different thermal histories for the gas in filament haloes. Filament haloes have higher baryon and stellar fractions when compared with their field counterparts. Without including stellar feedback, our results suggest that filaments assist gas cooling and enhance star formation in their residing dark matter haloes at high redshifts (i.e. z = 4.0 and 2.5). |
| WOS关键词 | COLD FLOWS ; STAR-FORMATION ; GAS ACCRETION ; UNIVERSE ; EVOLUTION ; CLUSTERS ; FEEDBACK ; STREAMS ; MODE |
| 资助项目 | NSFC[11133003] ; NSFC[11425312] ; Newton Advanced Fellowship ; Institute for Computational Cosmology at Durham University |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000466786400033 |
| 资助机构 | NSFC ; NSFC ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University ; NSFC ; NSFC ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University ; NSFC ; NSFC ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University ; NSFC ; NSFC ; Newton Advanced Fellowship ; Newton Advanced Fellowship ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/26187]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Liao, Shihong |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Durham, Inst Computat Cosmol, Dept Phys, Sci Labs, South Rd, Durham DH1 3LE, England |
| 推荐引用方式 GB/T 7714 | Liao, Shihong,Gao, Liang. Impact of filaments on galaxy formation in their residing dark matter haloes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,485(1):464-473. |
| APA | Liao, Shihong,&Gao, Liang.(2019).Impact of filaments on galaxy formation in their residing dark matter haloes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,485(1),464-473. |
| MLA | Liao, Shihong,et al."Impact of filaments on galaxy formation in their residing dark matter haloes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 485.1(2019):464-473. |
入库方式： OAI收割
来源：国家天文台
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