Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991azh....68..306s&link_type=abstract
Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 68, Mar.-Apr. 1991, p. 306-313. In Russian.
Astronomy and Astrophysics
Astronomy
6
Binary Stars, Main Sequence Stars, Stellar Evolution, Stellar Mass, Supergiant Stars, Wolf-Rayet Stars, Abundance, Blue Stars, Helium, Mass To Light Ratios, Stellar Interiors, Stellar Winds
Scientific paper
The evolution of primary components with 32 and 64 solar masses is studied. Evolving with matter mixing in the semiconvective zone and filling their Roche lobes, these components overflow their Roche lobes after the main-sequence evolution and lose matter during the first part of helium core burning. After the end of the overflow, the components lose their matter as a result of stellar wind and shrink in the nuclear timescale. At first, they have the characteristics of blue supergiants with an anomalous CNO abundance, and then the features of the Wolf-Rayet stars.
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