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Taking into Account the Effects of Component Proximity on the Spectral-line Profiles of Stars in Low-Mass X-ray Binary Systemsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 июня 2015 г.
- Авторы: Petrov V.S., Antokhina E.A., Cherepashchuk A.M.
- Журнал: Astronomy Reports
- Том: 59
- Номер: 5
- Год издания: 2015
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 346
- Последняя страница: 359
- DOI: 10.1134/S1063772915050066
- Аннотация: An exact calculation of CaI λ6439 absorption profiles in the spectra of optical stars in lowmass X-ray binary systems is carried out. The calculations are used to revise a formula relating the rotational broadening of lines and the component-mass ratio. In the case of modest (substantial) X-ray heating, failure to take into account the tidal–rotational deformation of the figure of the star leads to overestimation (underestimation) of the mass of the relativistic object. The radial-velocity curves of optical stars are modeled for binary systems with various parameters and X-ray heating powers kx; corresponding tables ofK corrections are presented. Refined values for the component-mass ratio q = 23 ± 1, black-hole mass Mx = 8.4 ± 0.5, and optical-star mass Mv = 0.36 ± 0.07 for the GS 2023+338 (V404 Cyg) system are presented.
- Добавил в систему: Петров Владислав Сергеевич