Exchange collisions between binary and single stars.

作者: J. G. Hills

DOI: 10.1086/112096

关键词: PhysicsX-ray binaryAstronomyOpen clusterStar clusterContact binaryAstrophysicsStellar massBinary starGlobular clusterVisual binary

摘要: In this paper we calculate the probability that existing binaries in various stellar systems have suffered exchange collisions with single stars. After such a collision former star is one of new binary components while it replaces ejected from binary. solar neighborhood, about visual 10/sup 3/ has nonprimordial component which captured general field. The two can very different ages and chemical compositions. Dynamically, are indistinguishable primordial except for their high average orbital eccentricities. It likely many x-ray Galactic disk bulge relativistic by collisions. open clusters most semimajor axes aapproximately-greater-than10/sup AU or more cores dense globular clusters, true aapproximately-greater-than1 AU.

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