Statistics
Scientific paper
Jul 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..272..486v&link_type=abstract
Active OB stars: structure, evolution, mass loss, and critical limits, Proceedings of the International Astronomical Union, IAU
Statistics
Binaries: General, Stars: Evolution, Stars: Mass Loss, Stars: Variables: Other, Stars: Statistics, Stars: Fundamental Parameters, Catalogs
Scientific paper
We have put on CDS a catalog containing 561 evolutionary models of binaries: J/A+A/487/1129 (Van Rensbergen+, 2008). The catalog covers a grid of binaries with a B-type primary at birth, different values for the initial mass ratio and a wide range of initial orbital periods. The evolution was calculated with the Brussels code in which we introduced the spinning up and the creation of a hot spot on the gainer or its accretion disk, caused by impacting mass coming from the donor. When the kinetic energy of fast rotation added to the radiative energy of the hot spot exceeds the binding energy, a fraction of the transferred matter leaves the system: the evolution is liberal during a short lasting era of rapid mass transfer. The spin-up of the gainer was modulated using both strong and weak tides. The catalog shows the results for both types. For comparison, we included the evolutionary tracks calculated with the conservative assumption. Binaries with an initial primary below 6 Msolar show hardly any mass loss from the system and thus evolve conservatively. Above this limit differences between liberal and conservative evolution grow with increasing initial mass of the primary star.
de Greve Jean-Pierre
de Loore Bert
Jansen Kim
Mennekens Nicki
van Rensbergen Walter
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