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LYMAN DECREMENTS OF NEUTRAL HYDROGEN LINES IN THE SPECTRUM OF THE SUN BASED ON SDO/EVE OBSERVATIONS. VARIATIONS DURING THE 24-th SOLAR CYCLE AND IN INDIVIDUAL FLARES OF CLASSES M AND Xстатья
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: 15 апреля 2020 г.
- Авторы: Bruevich E.A., Bruevich V.V.
- Журнал: Astrophysics
- Том: 62
- Номер: 3
- Год издания: 2019
- Издательство: Kluwer Academic/Plenum Publishers
- Местоположение издательства: United States
- Первая страница: 377
- Последняя страница: 386
- DOI: 10.1007/s10511-019-09589-0
- Аннотация: Data from satellite observations of fluxes in Lyman series lines and their relative variations, both during the 24-th cycle and in individual class M and X flares, are analyzed. The decrement D1 ( D1 F(L )/ F(L ) ) has varied over the 24-th activity cycle by roughly 25% from its maximum values to minimum values during 2014, when there was a secondary maximum in the 24-th cycle according to the main indices. Decrement D2 ( D2 F(L )/ F(L ) ) varies by roughly 10% during the cycle, and decrement D3 ( D3 F(L )/ F(L) ), by roughly 5% during the cycle. D1, D2, and D3 also vary during the cycle at smaller amplitudes with periods analogous to the periods of the quasi-biennial variations of the main activity indices. In flares of x-ray classes from M to X the variations of the Lyman decrements range from 2 to 20%, with the variations in the decrements being larger on the average for flares with higher energies in the soft x-ray range.
- Добавил в систему: Бруевич Елена Александровна