How black holes shape globular clusters: Modeling NGC 3201
| Autor: | Kremer, Kyle, Ye, Claire S., Chatterjee, Sourav, Rodriguez, Carl L., Rasio, Frederic A. |
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| Rok vydání: | 2018 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.3847/2041-8213/aab26c |
| Popis: | Numerical simulations have shown that black holes (BHs) can strongly influence the evolution and present-day observational properties of globular clusters (GCs). Using a Monte Carlo code, we construct GC models that match the Milky Way (MW) cluster NGC 3201, the first cluster in which a stellar-mass BH was identified through radial-velocity measurements. We predict that NGC 3201 contains $\gtrsim 200$ stellar-mass BHs. Furthermore, we explore the dynamical formation of main sequence-BH binaries and demonstrate that systems similar to the observed BH binary in NGC 3201 are produced naturally. Additionally, our models predict the existence of bright blue-straggler-BH binaries unique to core-collapsed clusters, which otherwise retain few BHs. Comment: Accepted for publication in ApJL. Comments welcome |
| Databáze: | arXiv |
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