How black holes shape globular clusters: Modeling NGC 3201
Autor: | Kremer, Kyle, Ye, Claire S., Chatterjee, Sourav, Rodriguez, Carl L., Rasio, Frederic A. |
---|---|
Rok vydání: | 2018 |
Předmět: | |
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 |
Externí odkaz: |