Computer Science – Numerical Analysis
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...383..192m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 383, Dec. 10, 1991, p. 192-197.
Computer Science
Numerical Analysis
11
Binary Stars, Globular Clusters, Protostars, Star Formation, Stellar Evolution, Stellar Motions, Gravitational Collapse, Mathematical Models, Numerical Analysis
Scientific paper
The formation of primordial binaries in globular clusters is examined using simple numerical models. Clusters of protostars collapse until their velocity dispersion rises sufficiently to reverse the infall and the cluster reaches equilibrium. During the collapse, interactions between stars and protostellar disks lead to stellar capture. It is found that binary fraction of a few percent typically result. Binary formation is terminated when the velocity dispersion rises to a point at which most encounters result in disk destruction rather than capture. As a result, much gas is returned to the cluster ISM, limiting the star formation efficiency to a value significantly below 100 percent.
Clarke Catherine J.
Murray Stephen D.
Pringle James E.
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