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arXiv 1201.5693astro-ph.HE
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球状星团中的中等质量黑洞

Intermediate-Mass Black Holes in Globular Clusters

Yu-Qing Lou, Yi-Hong Wu

摘要:

有报道称可能在球状星团(GC)中探测到中等质量黑洞(IMBH)。从经验上看,椭圆星系、螺旋星系的“伪核”和经典核球的平均速度色散与中心超大质量黑洞(SMBH)质量之间存在着密切的相关性。我们探索这样一个可能的相关性IMBHs在球形GC。在我们的广义多变GCs自相似准静态动力学演化模型中,提出了一个形成IMBH的判据。关键的结果是M(BH)= L o^1/(1-n),其中M(BH)是IMBH质量,o是GC平均恒星速度,L是系数,2/3 < n < 1。

英文摘要:

There have been reports of possible detections of intermediate-mass black holes (IMBHs) in globular clusters (GCs). Empirically, there exists a tight correlation between the central supermassive black hole (SMBH) mass and the mean velocity dispersion of elliptical galaxies, "pseudobulges" and classical bulges of spiral galaxies. We explore such a possible correlation for IMBHs in spherical GCs. In our model of self-similar general polytropic quasi-static dynamic evolution of GCs, a criterion of forming an IMBH is proposed. The key result is M(BH) = L o^1/(1-n) where M(BH) is the IMBH mass, o is the GC mean stellar velocity, L is a coefficient, and 2/3 < n < 1.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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