Journal article
Star cluster evolution with primordial binaries. 3: Effect of the Galactic tidal field
The Astrophysical journal, v 427(2), pp 793-807
01 Jun 1994
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We present the results of N-body simulations of tidally limited star clusters with an initial population of 0%-20% binaries. We find that (1) if enough binaries are initially present, the binary fraction may fall to a minimum value, then increase at late times; (2) the cluster evaporation timescale is quite insensitive to the details of the initial binary distribution; (3) the cluster core radius stabilizes at a few percent of the half-mass radius when binaries are present, just as in the case of isolated clusters; and (4) there may be a marked difference between the spatial distribution of low-energy and high-energy binaries as the cluster evolves. Specifically, the spatial distribution of the lower energy systems is often substantially more extended than that of the more tightly bound pairs. At no time are our simulated clusters well described by simple dynamical models that neglect the close coupling between the binding energies and the center-of-mass energies of the binaries they contain.
Metrics
Details
- Title
- Star cluster evolution with primordial binaries. 3: Effect of the Galactic tidal field
- Creators
- Steve Mcmillan - Drexel UniversityPiet Hut - Kyoto University
- Publication Details
- The Astrophysical journal, v 427(2), pp 793-807
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:A1994NN73900024
- Scopus ID
- 2-s2.0-12044252144
- Other Identifier
- 991019174533104721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics