The brief era of direct collapse black hole formation
文献类型：期刊论文
| 作者 | Yue, Bin1; Ferrara, Andrea1,2; Salvaterra, Ruben3; Xu, Yidong4 ; Chen, Xuelei4,5
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2014-05-01 |
| 卷号 | 440期号:2页码:1263-1273 |
| 关键词 | galaxies: high redshift quasars: supermassive black holes dark ages reionization first stars early Universe |
| 英文摘要 | It has been proposed that the first, intermediate-mass ( approximate to 10(5-6) M-circle dot) black holes might form through direct collapse of unpolluted gas in atomic-cooling haloes exposed to a strong Lyman-Werner (LW) or near-infrared (NIR) radiation. As these systems are expected to be Compton thick, photons above 13.6 eV are largely absorbed and reprocessed into lower energy bands. It follows that direct collapse black holes (DCBHs) are very bright in the LW/NIR bands, typically outshining small high-redshift galaxies by more than 10 times. Once the first DCBHs form, they then trigger a runaway process of further DCBH formation, producing a sudden rise in their cosmic mass density. The universe enters the 'DCBH era' at z approximate to 20 when a large fraction of atomic-cooling haloes are experiencing DCBH formation. By combining the clustering properties of the radiation sources with Monte Carlo simulations, we show that in this scenario the DCBH mass density rises from similar to 5 M-circle dot Mpc(-3) at z similar to 30 to the peak value similar to 5 x 10(5) M-circle dot Mpc(-3) at z similar to 14 in our fiducial model. However, the abundance of active (accreting) DCBHs drops after z similar to 14, as gas in the potential formation sites (unpolluted haloes with virial temperature slightly above 10(4) K) is photoevaporated. This effect almost completely suppresses DCBH formation after z similar to 13. The DCBH formation era lasts only approximate to 150 Myr, but it might crucially provide the seeds of the supermassive black holes powering z similar to 6 quasars. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000334742200025 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6526]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Scuola Normale Super Pisa, I-56126 Pisa, Italy 2.Univ Tokyo, Kavli IPMU WPI, Todai Inst Adv Study, Kashiwa, Chiba 2778583, Japan 3.IASF Milano, INAF, I-20133 Milan, Italy 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 5.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yue, Bin,Ferrara, Andrea,Salvaterra, Ruben,et al. The brief era of direct collapse black hole formation[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,440(2):1263-1273. |
| APA | Yue, Bin,Ferrara, Andrea,Salvaterra, Ruben,Xu, Yidong,&Chen, Xuelei.(2014).The brief era of direct collapse black hole formation.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,440(2),1263-1273. |
| MLA | Yue, Bin,et al."The brief era of direct collapse black hole formation".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 440.2(2014):1263-1273. |
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来源：国家天文台
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