Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..68..433d&link_type=abstract
Astrophysics and Space Science, vol. 68, no. 2, Apr. 1980, p. 433-457. Fonds de la Recherche Fondamentale Collective
Astronomy and Astrophysics
Astrophysics
24
Binary Stars, Mass Transfer, Stellar Evolution, Stellar Mass, Angular Momentum, Mass Distribution, Mass Ratios, Spectrum Analysis, Stellar Luminosity
Scientific paper
The paper considers close binary systems before and after mass transfer. Mass, period, and mass ratio distributions and relations of the group of 'unevolved' binaries are transformed into corresponding distributions and relations of evolved binaries. The transformations are based upon a relation derived from an extended set of published computations of the evolution of close binaries. From this relation the characteristics of initial parameters after mass exchange are computed and the results were compared to the observations of binary systems after mass exchange; it is concluded that during mass exchange in close binaries, more than 50% of the mass is lost to the system in the process of transfer, removing a large amount of angular momentum.
de Greve Jean-Pierre
Vanbeveren Dany
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