Can High-Velocity Stars Reveal Black Holes in Globular Clusters?
Open Access
- 22 October 2003
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 597 (2) , L125-L128
- https://doi.org/10.1086/379814
Abstract
We estimate the number of individual fast-moving stars observable in globular clusters under the assumption that the clusters contain massive central black holes that follow the galactic MBH-σ relationship. We find that radial velocity measurements are unlikely to detect such stars but that proper-motion studies could reveal such stars, if they exist, in the most likely clusters. Thus, Hubble Space Telescope proper-motion studies can test this hypothesis in a few nearby clusters.Keywords
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