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MOCCA-SURVEY Database I : Dissolution of tidally filling star clusters harboring black hole subsystem

Giersz, Mirek ; Askar, Abbas LU orcid ; Wang, Long ; Hypki, Arkadiusz ; Leveque, Agostino and Spurzem, Rainer (2019) In Proceedings of the International Astronomical Union 14(351). p.438-441
Abstract

We investigate the dissolution process of star clusters embedded in an external tidal field and harboring a subsystem of stellar-mass black hole. For this purpose we analyzed the MOCCA models of real star clusters contained in the Mocca Survey Database I. We showed that the presence of a stellar-mass black hole subsystem in tidally filling star cluster can lead to abrupt cluster dissolution connected with the loss of cluster dynamical equilibrium. Such cluster dissolution can be regarded as a third type of cluster dissolution mechanism. We additionally argue that such a mechanism should also work for tidally under-filling clusters with a top-heavy initial mass function.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
globular clusters: general, methods: numerical, stars: black holes, stellar dynamics
in
Proceedings of the International Astronomical Union
volume
14
issue
351
pages
4 pages
publisher
Cambridge University Press
external identifiers
  • scopus:85082024717
ISSN
1743-9213
DOI
10.1017/S1743921319006690
language
English
LU publication?
yes
id
8736f778-804b-461c-900f-7fcc3767a6fb
date added to LUP
2020-04-15 07:52:00
date last changed
2025-04-04 14:46:50
@article{8736f778-804b-461c-900f-7fcc3767a6fb,
  abstract     = {{<p>We investigate the dissolution process of star clusters embedded in an external tidal field and harboring a subsystem of stellar-mass black hole. For this purpose we analyzed the MOCCA models of real star clusters contained in the Mocca Survey Database I. We showed that the presence of a stellar-mass black hole subsystem in tidally filling star cluster can lead to abrupt cluster dissolution connected with the loss of cluster dynamical equilibrium. Such cluster dissolution can be regarded as a third type of cluster dissolution mechanism. We additionally argue that such a mechanism should also work for tidally under-filling clusters with a top-heavy initial mass function.</p>}},
  author       = {{Giersz, Mirek and Askar, Abbas and Wang, Long and Hypki, Arkadiusz and Leveque, Agostino and Spurzem, Rainer}},
  issn         = {{1743-9213}},
  keywords     = {{globular clusters: general; methods: numerical; stars: black holes; stellar dynamics}},
  language     = {{eng}},
  number       = {{351}},
  pages        = {{438--441}},
  publisher    = {{Cambridge University Press}},
  series       = {{Proceedings of the International Astronomical Union}},
  title        = {{MOCCA-SURVEY Database I : Dissolution of tidally filling star clusters harboring black hole subsystem}},
  url          = {{http://dx.doi.org/10.1017/S1743921319006690}},
  doi          = {{10.1017/S1743921319006690}},
  volume       = {{14}},
  year         = {{2019}},
}