Structure of the globular cluster M15 and constraints on a massive central black hole

Details Structure of the globular cluster M15 and constraints on a massive central black hole Structure of the globular cluster M15 and constraints on a massive central black hole

2000-01-19

arxiv.org/abs/astro-ph/0001342v1

Astronomy and Astrophysics

Astrophysics

To appear in `Black Holes in Binaries and Galactic Nuclei', Proceedings of an ESO Workshop in September 1999, Kaper L., van de

Scientific paper

10.1007/10720995_54

Globular clusters could harbor massive central black holes (BHs), just as galaxies do. So far, no unambiguous detection of a massive BH has been reported for any globular cluster. However, the dense core-collapsed cluster M15 seems to be a good candidate. I review the available photometric and kinematic data for this cluster. Both are consistent with a BH of approximately 2000 solar masses, although such a BH is not unambiguously required by the data. I discuss some ongoing studies with Keck and HST which should shed more light on this issue in the coming years.

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