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Modeling Dense Star Clusters in the Milky Way and Beyond with the $\texttt{CMC}$ Cluster Catalog

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arxiv 1911.00018 v2 pith:J5H3JGPM submitted 2019-10-31 astro-ph.HE astro-ph.GA

Kyle Kremer , Claire S. Ye , Nicholas Z. Rui , Newlin C. Weatherford , Sourav Chatterjee , Giacomo Fragione , Carl L. Rodriguez , Mario Spera
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Frederic A. Rasio
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classification astro-ph.HEastro-ph.GA
keywords clusterstextttclusterbinariescoreevolutionincludingmilky
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abstract

We present a set of 148 independent $N$-body simulations of globular clusters (GCs) computed using the code $\texttt{CMC}$ ($\texttt{Cluster Monte Carlo}$). At an age of $\sim10-13\,$Gyr, the resulting models cover nearly the full range of cluster properties exhibited by the Milky Way GCs, including total mass, core and half-light radii, metallicity, and galactocentric distance. We use our models to investigate the role that stellar-mass black holes play in the process of core collapse. Furthermore, we study how dynamical interactions affect the formation and evolution of several important types of sources in GCs, including low-mass X-ray binaries, millisecond pulsars, blue stragglers, cataclysmic variables, Type Ia supernovae, calcium-rich transients, and merging compact binaries. While our focus here is on old, low-metallicity GCs, our $\texttt{CMC}$ simulations follow the evolution of clusters over a Hubble time, and they include a wide range of metallicities (up to solar), so that our results can also be used to study younger and higher-metallicity star clusters.

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Cited by 4 Pith papers

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  2. Unified remnant models for aligned-spin, precessing, and eccentric binary black hole mergers

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    New analytic fits, gwModelRemS/P, predict remnant mass, spin, luminosity, and kick for black hole mergers from equal mass to q=1000, with a neural-flow model for precessing kicks.

  3. Signatures of a subpopulation of hierarchical mergers in the GWTC-4 gravitational-wave dataset

    gr-qc 2026-01 unverdicted novelty 6.0 of 10

    Using a joint effective-spin and precession-spin model on 155 gravitational-wave events, the authors infer that the hierarchical (second-generation) merger fraction rises sharply above ~46 M_sun and peaks again near 1...

  4. Stellar-mass black holes in young massive and open stellar clusters -- VI. Role of external galactic field

    astro-ph.GA 2025-05 conditional novelty 6.0 of 10

    Even strongly tidally stripped young star clusters continue to form dynamical black hole mergers and Gaia-BH-like BH-main-sequence binaries, with nearly unchanged merger property distributions.

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