Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.206..149i&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 206, Jan. 1, 1984, p. 149-158.
Astronomy and Astrophysics
Astronomy
13
Astronomical Models, Binary Stars, Dynamic Models, Globular Clusters, Homology, Evolution (Development), Stellar Mass Ejection, Tides
Scientific paper
Late stages of the dynamical evolution of globular clusters are investigated by using a simple homology model. No initial binaries are assumed to exist. Nevertheless binaries eventually play important roles in the dynamical evolution of cores of globular clusters. Binaries are formed by two-body tidal dissipative encounters and three-body encounters. In most globular clusters, two-body binaries dominate the evolution of core of globular clusters. In such globular clusters mass-segregation instability of binaries occurs and after that binary-binary encounters govern the evolution. In some globular clusters, three-body binaries dominate the evolution. In such clusters the onset of mass-segregation instability occurs at about the same time as heating brings core collapse to an end. Therefore more detailed investigations are necessary to investigate the evolution of such clusters.
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