Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.305..506k&link_type=abstract
Nature (ISSN 0028-0836), vol. 305, Oct. 6, 1983, p. 506-508. Research supported by the University of California.
Astronomy and Astrophysics
Astrophysics
11
Astrophysics, Binary Stars, Blue Stars, Globular Clusters, Main Sequence Stars, Astronomical Catalogs, Milky Way Galaxy, Stellar Models
Scientific paper
An analytical model is discussed for the formation of binary star systems within globular clusters. Since it has been shown that gravitational encounters are probable among stars in a globular cluster, where tidal capture is the most effective force, and gravitational radiation is the driving force of binary formation, it follows that binary systems will form in globular clusters. The rates of tidal capture, the rate of induction of steady mass transfer by noncatastrophic gravitational encounters, and the total number of binaries produced by tidal capture are estimated. It is projected that about 1 percent of the stars in dense globular clusters are either close binaries, contact binaries, or blue stragglers lying on the main sequence beyond the turn-off.
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