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UBVRI photometry of the eclipsing symbiotic star CI Cyg during 1991 1996статья
Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
- Автор: Dmitrienko E.S.
- Журнал: Astrophysics
- Том: 39
- Номер: 2
- Год издания: 1996
- Издательство: Kluwer Academic/Plenum Publishers
- Местоположение издательства: United States
- Первая страница: 112
- Последняя страница: 114
- DOI: 10.1007/BF02044793
- Аннотация: UBVRI observations of the eclipsing symbiotic star CI Cyg made during 1991 1995 are analyzed, the results of which indicate that the system is in the same quiescent state as during 1985 1990. Variations in the "extra-eclipse" color index U-B with an amplitude of about 0m.3 0m.4 and a characteristic time of about 9 10 yr have been detected for the first time. A more thorough analysis of all available data in the UBVRI bands of the spectrum will be required to investigate the existence of possible long-period variations in the other color indices and brightness of the system.
- Добавил в систему: Дмитриенко Елена Сергеевна