Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009arep...53..446s&link_type=abstract
Astronomy Reports, Volume 53, Issue 5, pp.446-455
Astronomy and Astrophysics
Astronomy
97.80.Fk, 97.10.Cv
Scientific paper
We consider mass exchange in close binaries containing low-mass, fully convective components on the dynamical time scale. We present the results of three-dimensional hydrodynamical simulations of this process in close binaries contracting onto the main sequence (binary pre-MS stars). Our results suggest that some systems with superplanets could be formed by this process, which could be considered a special type of binary star. We have determined the ranges of the relative donor masses that allow the merger of the binary components and the formation of systems with superplanets or the survival of the binary during the mass exchange. These process should result in a deficit of binaries with similar component masses.
Karetnikov V. G.
Sirotkin Fedir V.
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