|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
The structure and evolutionary state of the bright component of V380 Cygстатья
- Авторы: Doroshenko V.T., Leushin V.V., Topil’skaya G.P.
- Журнал: Astrofizika
- Том: 29
- Номер: 2
- Год издания: 1988
- Первая страница: 300
- Последняя страница: 309
- Аннотация: 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.
- Добавил в систему: Дорошенко Валентина Трофимовна