Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988afz....29..300d&link_type=abstract
Astrofizika, Tom 29, Vyp. 2, p. 300 - 309
Astronomy and Astrophysics
Astronomy
1
Binaries: Stellar Models, Binaries: Stellar Evolution, Binaries: Stellar Structure
Scientific paper
Data of spectroscopic and photometric observations have been analysed from the point of view of stellar structure and evolution. The parameters obtained from the line spectrum (Te = 22500K, log g = 3.4) describe the observations of the continuum spectrum in the region from 3300 Å to 10800 Å in case the distance is 1 kpc and the interstellar absorption AV = 0m.88. The apsidal coefficient is determined from apsidal motion and calculated from a theoretical model (M = 15 Msun, X = 0.7, Y = 0.28). The theoretical coefficient coincides with the observational one for the moment of ignition of hydrogen in the core of a star (the age t = 8.75.106yr, the central helium abundance Yc = 0.95). The surface chemical composition could alter the mixing between the interior and atmosphere.
Doroshenko V. T.
Leushin V. V.
Topil'Skaya G. P.
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