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How black holes shape globular clusters: Modeling NGC 3201

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arxiv 1802.09553 v1 pith:VCFPMDTT submitted 2018-02-26 astro-ph.HE

How black holes shape globular clusters: Modeling NGC 3201

Kyle Kremer , Claire S. Ye , Sourav Chatterjee , Carl L. Rodriguez , Frederic A. Rasio This is my paper
classification astro-ph.HE
keywords clustersbinariesblackclusterglobularholesmodelspredict
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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.

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Cited by 1 Pith paper

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  1. Formation of rotating supergiants via stellar mergers in dense clusters: Implications for black hole natal spins

    astro-ph.HE 2026-07 conditional novelty 6.0

    Stellar mergers with mass ratio q≳0.3 in young clusters can produce blue-supergiant progenitors that leave black holes with dimensionless spins a≃0.5–0.8, reducing post-merger retention and hierarchical-merger rates.