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Period Variations of Cepheids and Stellar Evolutionтезисы доклада
- Авторы: Berdnikov L.N., Samus N.N.
- Сборник: ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES
- Серия: Proceedings of the VAK-2021 conference, Aug 23–28, 2021 (Edited by A.M. Cherepashchuk et al.)
- Тезисы
- Глава в коллективной монографии
- Год издания: 2022
- Место издания: Janus-K Москва
- Первая страница: 9
- Последняя страница: 14
- DOI: 10.51194/VAK2021.2022.1.1.002
- Аннотация: Classical Cepheids are pulsating supergiants in the main instability strip. In the course of evolution, they move across the instability strip, and their periods vary. Studying their period variations for a time span of several decades, it is possible to determine the rate of secular period increase or decrease, identify the number of instability strip crossing, and thus improve the period–luminosity relation. Special tests are used to determine whether the observed period variation is real or caused by random errors.
- Добавил в систему: Бердников Леонид Николаевич