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Published, Version of Record (VoR)Open Access (License Unspecified), Open
Journal article
The fate of star clusters near the Galactic center I: Analytic considerations
The Astrophysical journal, v 596(1)
01 Apr 2003
Abstract
Astrophys.J. 596 (2003) 314-322 A star cluster in a galactic nucleus sinks toward the galactic center due to
dynamical friction. As it spirals inward, the cluster loses mass due to stellar
evolution, relaxation driven evaporation, and tidal stripping, eventually
dissolving in the galactic tidal field. We model the inspiral of dense young
star clusters near the center of our Galaxy to study the extent of the region
of parameter space in which the cluster can reach the inner parsec of the
Galaxy within a few million years. Since we neglect changes in cluster
structure due to internal evolution, the present study is most applicable to
star clusters less than about one initial relaxation time old. We find that
only star clusters with initial masses $\apgt 10^5$ {\msun} can reach the
Galactic center from an initial distance of $\apgt 60$ pc within one initial
relaxation time or a few million years, whichever is smaller.
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Details
- Title
- The fate of star clusters near the Galactic center I: Analytic considerations
- Creators
- Steve McMillan - Drexel UniversitySimon Portegies Zwart - Institute for Computer Science, University of Amsterdam, Kruislaan 403, Netherlands
- Publication Details
- The Astrophysical journal, v 596(1)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000185814300025
- Scopus ID
- 2-s2.0-0142261024
- Other Identifier
- 991019170469604721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics