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Eclipsing System PS UMa: Evolutionary Statusand Physical Parameters of the Componentsстатья
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: 22 апреля 2020 г.
- Авторы: Volkov I.M., Kravtsova A.S.
- Журнал: Astronomy Reports
- Том: 64
- Номер: 3
- Год издания: 2020
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 211
- Последняя страница: 225
- DOI: 10.1134/S1063772920030051
- Аннотация: We present the first high accuracy UBVRI(RI)c CCD light curves of the newly discovered eclipsing system PS UMa = GSC 4375 1733 (P=9.27d, V=12.42). The photometric solutions are found, the physical parameters of the components are derived. The eccentricity of the orbit was found to be negligible e = 0.074, which made it difficult to measure the rate of the apsidal rotation. High accuracy of our observations allowed us to find the reliable parameters of the system. Components (Sp = F7 + G1) have advanced significantly in their evolution, the age of the system is 2.4 billion years. The mass and the radius of G1 component is larger and it is ahead of the F7 component in its evolution. The model of the system best suits the theory in the absence of the overshooting in the core. Obtained from our observations photometrical parallax π = 0.00102"(2) coincides with GAIA DR2 value π = 0.00106"(3) within their errors. The new EW type variable with period =0.40d was found in the field of PS UMa.
- Добавил в систему: Волков Игорь Михайлович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | AR211.pdf | 1,6 МБ | 12 марта 2020 [Volkov] |