The formation of close-binary systems in globular clusters

Details The formation of close-binary systems in globular clusters The formation of close-binary systems in globular clusters

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...132..361v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 132, no. 2, March 1984, p. 361-369.

Astronomy and Astrophysics

Astrophysics

6

Binary Stars, Globular Clusters, Neutron Stars, Stellar Evolution, X Ray Sources, X Ray Stars, Gravitational Collapse, Main Sequence Stars, Red Giant Stars

Scientific paper

The continuous formation of close-binary systems in globular clusters (GCs) by collision and binary capture is considered. The nature of the companion in strong X-ray sources in GCs is discussed, and the stellar content of a typical GC is considered. A simple model of a GC is constructed in order to determine the number of different types of stars and their mean mass and radius. The collision process is addressed and the number of binaries formed in 15 billion yr in a typical cluster is determined. The tidal capture process is discussed, the number of close binary systems formed in a typical GC is transformed to a homogeneous sample of 65 GCs, and the dependence on cluster parameters is discussed.

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