Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97..527d&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 2, p. 527-540.
Astronomy and Astrophysics
Astrophysics
40
Binary Stars, Mass Transfer, Massive Stars, Stellar Evolution, Stellar Mass Accretion, Chemical Composition, Stellar Mass Ejection, Stellar Winds
Scientific paper
Tables of evolutionary sequences for stars in the mass range 3 to 8 solar masses and mass ratios 0.9 and 0.6 are presented. The systems evolve through a case B phase of mass transfer. The evolution of both components is followed simultaneously. The chemical composition is X = 0.7, Z = 0.02, and moderate convective core overshooting (or = 0.25) is adopted. It is assumed that 50 percent of the matter lost by the primary is lost from the system. The evolutionary code used for the computations is the same as the code used for the massive close binary evolution, presented earlier. An analysis of the evolution as a semidetached system is given, together with an investigation of the rejuvenation through accretion of matter of the secondary (now brighter) component.
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