Statistics – Computation
Scientific paper
Nov 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...168..147s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 168, no. 1-2, Nov. 1986, p. 147-154.
Statistics
Computation
6
Binary Stars, Mass Transfer, O Stars, Stellar Evolution, Stellar Mass Ejection, Wolf-Rayet Stars, Computational Astrophysics, Main Sequence Stars, Stellar Cores, Stellar Mass Accretion, Stellar Winds
Scientific paper
Five evolutionary sequences are studied to investigate the evolution of massive close binaries undergoing case A of mass transfer, assuming convective overshooting from the core and mass loss through stellar wind. It is found that mass transfer occurring late in the main-sequence lifetime has little effect on the further evolution of the system, whereas mass transfer very early in the life of the system profoundly influences the evolution by its effect on the evolutionary speed of the two components. For precursor masses of greater than or equal to 35 solar masses, the formation of WR systems is through mass loss by a stellar wind alone, with mass transfer in binaries being unimportant, whereas in the 15-30 solar mass range the mass transfer scenario will be very important.
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