Feedback limits rapid growth of seed black holes at high redshift
Wang JM(王建民); Chen YM(陈燕梅); Hu C(胡晨); Wang, JM; Chen, YM; Hu, C
刊名ASTROPHYSICAL JOURNAL
2006
卷号637期号:2页码:L85-L88
关键词black hole physics cosmology : theory galaxies : evolution
学科分类Astronomy & Astrophysics
DOI10.1086/500557
通讯作者Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100039, Peoples R China ; Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
文章类型Article
英文摘要Seed black holes formed in the collapse of Population III stars have been invoked to explain the presence of supermassive black holes at high redshift. It has been suggested that a seed black hole can grow up to through highly super-Eddington accretion for a period of similar to 10(6)-10(7) at redshift. We studied the feedback of radiation pressure, Compton heating, and outflow during the seed black hole growth. It is found that its surrounding medium fueled to the seed hole is greatly heated by Compton heating. For a supercritical accretion onto a seed hole, a Compton sphere ( with a temperature similar to 10(6) K) will be formed 10(3) M-circle dot on a timescale of 1.6 x 10(3) yr so that the hole is only supplied by a rate of 10(-3) of the Eddington the Compton sphere. The kinetic feedback of the strong outflow will heat the medium at a large distance from the black hole; this leads to a dramatic decrease of the outer Bondi accretion onto the black hole and avoids the accumulation of the matter. The highly supercritical accretion will be rapidly halted by the strong feedback. The seed black hole hardly grows up at the very early universe unless the strong feedback can be avoided.
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS记录号WOS:000235131900005
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被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240304
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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Wang JM,Chen YM,Hu C,et al. Feedback limits rapid growth of seed black holes at high redshift[J]. ASTROPHYSICAL JOURNAL,2006,637(2):L85-L88.
APA 王建民,陈燕梅,胡晨,Wang, JM,Chen, YM,&Hu, C.(2006).Feedback limits rapid growth of seed black holes at high redshift.ASTROPHYSICAL JOURNAL,637(2),L85-L88.
MLA 王建民,et al."Feedback limits rapid growth of seed black holes at high redshift".ASTROPHYSICAL JOURNAL 637.2(2006):L85-L88.
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