Modeling Dense Star Clusters in the Milky Way and beyond with the Cluster Monte Carlo Code
Rodriguez, Carl L.1,2; Weatherford, Newlin C.3,4; Coughlin, Scott C.4; Amaro-Seoane, Pau5,6,7,8,9; Breivik, Katelyn10; Chatterjee, Sourav11; Fragione, Giacomo3,4; Kiroglu, Fulya3,4; Kremer, Kyle12,13; Rui, Nicholas Z.12; Ye, Claire S.3,4; Zevin, Michael14,15; Rasio, Frederic A.3,4
AbstractWe describe the public release of the Cluster Monte Carlo (CMC) code, a parallel, star-by-star N-body code for modeling dense star clusters. CMC treats collisional stellar dynamics using Henon's method, where the cumulative effect of many two-body encounters is statistically reproduced as a single effective encounter between nearest-neighbor particles on a relaxation timescale. The star-by-star approach allows for the inclusion of additional physics, including strong gravitational three- and four-body encounters, two-body tidal and gravitational-wave captures, mass loss in arbitrary galactic tidal fields, and stellar evolution for both single and binary stars. The public release of CMC is pinned directly to the COSMIC population synthesis code, allowing dynamical star cluster simulations and population synthesis studies to be performed using identical assumptions about the stellar physics and initial conditions. As a demonstration, we present two examples of star cluster modeling: first, we perform the largest (N = 10(8)) star-by-star N-body simulation of a Plummer sphere evolving to core collapse, reproducing the expected self-similar density profile over more than 15 orders of magnitude; second, we generate realistic models for typical globular clusters, and we show that their dynamical evolution can produce significant numbers of black hole mergers with masses greater than those produced from isolated binary evolution (such as GW190521, a recently reported merger with component masses in the pulsational pair-instability mass gap).
Indexed BySCI
Funding ProjectNSF at Carnegie Mellon University[AST2009916] ; NSF at Northwestern University[AST-1716762] ; National Science Foundation[ACI-1548562] ; NSF at the Pittsburgh Supercomputing Center (PSC)[ACI-1928147] ; CIERA Riedel Family Graduate Fellowship ; Turkish Fulbright Commission ; NSF Astronomy and Astrophysics Postdoctoral Fellowship[AST-2001751] ; Ramon y Cajal Programme of the Ministry of Economy, Industry and Competitiveness of Spain ; Programa Estatal de Generacion de Conocimiento[PGC2018-096663-B-C43] ; Dominic Orr Graduate Fellowship at Caltech
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000743703600001
PublisherIOP Publishing Ltd
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Document Type期刊论文
Corresponding AuthorRodriguez, Carl L.
Affiliation1.Carnegie Mellon Univ, McWilliams Ctr Cosmol, Pittsburgh, PA 15213 USA
2.Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
3.Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
4.Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
5.Univ Politecn Valencia, Camino Vera,S-N, E-46022 Valencia, Spain
6.DESY Zeuthen, Platanenallee 6, D-15738 Zeuthen, Germany
7.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China
8.Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
9.TU Berlin, Zentrum Astron & Astrophy, Hardenbergstr 36, D-10623 Berlin, Germany
10.Flatiron Inst, Ctr Computat Astrophys, 162 Fifth Ave, New York, NY 10010 USA
11.Tata Inst Fundamental Res, Homi Bhabha Rd, Mumbai 400005, Maharashtra, India
12.CALTECH, TAPIR, Pasadena, CA 91125 USA
13.Observ Carnegie Inst Sci, Pasadena, CA 91101 USA
14.Univ Chicago, Kavli Inst Cosmol Phys, 5640 S Ellis Ave, Chicago, IL 60637 USA
15.Univ Chicago, Enrico Fermi Inst, 933 E 56th St, Chicago, IL 60637 USA
Recommended Citation
GB/T 7714
Rodriguez, Carl L.,Weatherford, Newlin C.,Coughlin, Scott C.,et al. Modeling Dense Star Clusters in the Milky Way and beyond with the Cluster Monte Carlo Code[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2022,258(2):21.
APA Rodriguez, Carl L..,Weatherford, Newlin C..,Coughlin, Scott C..,Amaro-Seoane, Pau.,Breivik, Katelyn.,...&Rasio, Frederic A..(2022).Modeling Dense Star Clusters in the Milky Way and beyond with the Cluster Monte Carlo Code.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,258(2),21.
MLA Rodriguez, Carl L.,et al."Modeling Dense Star Clusters in the Milky Way and beyond with the Cluster Monte Carlo Code".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 258.2(2022):21.
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