Evolution of a globular cluster with a two-component BH mass spectrum

Dawoo Park; Chunglee Kim; Hyung Mok Lee; Yeong Bok Bae

doi:10.1017/S1743921315007929

Evolution of a globular cluster with a two-component BH mass spectrum

Dawoo Park, Chunglee Kim, Hyung Mok Lee, Yeong Bok Bae

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Globular clusters (GCs) is dominated by behaviors of high-mass components such as neutron stars (NSs) and black holes (BHs). In this work, we perform direct N-body simulations of a GC assuming two BH masses. We used the BH masses of 10 and 20 M_⊙ with total math ratio between those two populations is assumed to be 2:1 and 5:1. Our results show that the heavier BHs (20 M_⊙) are depleted in the early stage of cluster evolution. The existence of heavier BH components increase the retention rate of lighter BHs during the cluster evolution. About 30% of ejected BHs are in binaries.

Original language	English
Pages (from-to)	245-246
Number of pages	2
Journal	Proceedings of the International Astronomical Union
Volume	10
DOIs	https://doi.org/10.1017/S1743921315007929
State	Published - 2016

Keywords

Black Holes
Globular Clusters
Gravitational wave

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1017/S1743921315007929

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title = "Evolution of a globular cluster with a two-component BH mass spectrum",

abstract = "Globular clusters (GCs) is dominated by behaviors of high-mass components such as neutron stars (NSs) and black holes (BHs). In this work, we perform direct N-body simulations of a GC assuming two BH masses. We used the BH masses of 10 and 20 M⊙ with total math ratio between those two populations is assumed to be 2:1 and 5:1. Our results show that the heavier BHs (20 M⊙) are depleted in the early stage of cluster evolution. The existence of heavier BH components increase the retention rate of lighter BHs during the cluster evolution. About 30% of ejected BHs are in binaries.",

keywords = "Black Holes, Globular Clusters, Gravitational wave",

author = "Dawoo Park and Chunglee Kim and Lee, {Hyung Mok} and Bae, {Yeong Bok}",

note = "Publisher Copyright: Copyright {\textcopyright} 2016 International Astronomical Union.",

year = "2016",

doi = "10.1017/S1743921315007929",

language = "English",

volume = "10",

pages = "245--246",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

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TY - JOUR

T1 - Evolution of a globular cluster with a two-component BH mass spectrum

AU - Park, Dawoo

AU - Kim, Chunglee

AU - Lee, Hyung Mok

AU - Bae, Yeong Bok

PY - 2016

Y1 - 2016

N2 - Globular clusters (GCs) is dominated by behaviors of high-mass components such as neutron stars (NSs) and black holes (BHs). In this work, we perform direct N-body simulations of a GC assuming two BH masses. We used the BH masses of 10 and 20 M⊙ with total math ratio between those two populations is assumed to be 2:1 and 5:1. Our results show that the heavier BHs (20 M⊙) are depleted in the early stage of cluster evolution. The existence of heavier BH components increase the retention rate of lighter BHs during the cluster evolution. About 30% of ejected BHs are in binaries.

AB - Globular clusters (GCs) is dominated by behaviors of high-mass components such as neutron stars (NSs) and black holes (BHs). In this work, we perform direct N-body simulations of a GC assuming two BH masses. We used the BH masses of 10 and 20 M⊙ with total math ratio between those two populations is assumed to be 2:1 and 5:1. Our results show that the heavier BHs (20 M⊙) are depleted in the early stage of cluster evolution. The existence of heavier BH components increase the retention rate of lighter BHs during the cluster evolution. About 30% of ejected BHs are in binaries.

KW - Black Holes

KW - Globular Clusters

KW - Gravitational wave

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DO - 10.1017/S1743921315007929

M3 - Article

AN - SCOPUS:84960327735

SN - 1743-9213

VL - 10

SP - 245

EP - 246

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

ER -

Evolution of a globular cluster with a two-component BH mass spectrum

Abstract

Keywords

UN SDGs

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