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arXiv · 1201.5693

Intermediate-Mass Black Holes in Globular Clusters

Yu-Qing Lou·Yi-Hong Wu
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Abstract

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.

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Yu-Qing Lou, Yi-Hong Wu. 2012-01-27. Intermediate-Mass Black Holes in Globular Clusters. https://doi.org/10.1111/j.1745-3933.2012.01229.x

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