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Searching for solar-like oscillations in pre-main sequence stars using APOLLO. Can we find the young Sun?статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 июня 2021 г.
- Авторы: Muellner M., Zwintz K., Corsaro E., Steindl T., Potravnov I., Guenther E.W., Kniazev A., Gvaramadze V.
- Журнал: Astronomy and Astrophysics
- Том: 647
- Год издания: 2021
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 1
- Последняя страница: 14
- Номер статьи: A168
- DOI: 10.1051/0004-6361/202039578
- Аннотация: Context. In recent years, our understanding of solar-like oscillations from main sequence to red giant stars has improved dramatically thanks to pristine data collected from space telescopes. One of the remaining open questions focuses around the observational identification of solar-like oscillations in pre-main sequence stars.Aims. We aim to develop an improved method to search for solar-like oscillations in pre-main sequence stars and apply it to data collected by the Kepler K2 mission.Methods. Our software APOLLO includes a novel way to detect low signal-to-noise ratio solar like oscillations in the presence of a high background level.Results. By calibrating our method using known solar-like oscillators from the main Kepler mission, we apply it to T Tauri stars observed by Kepler K2 and identify several candidate pre-main sequence solar-like oscillators.Conclusions. We find that our method is robust even when applied to time-series of observational lengths as short as those obtained with the TESS satellite in one sector. We identify EPIC 205375290 as a possible candidate for solar-like oscillations in a pre-main sequence star with \nu_max=242 uHz. We also derive EPIC 205375290's fundamental parameters to be T_eff= 3670\pm180 K, log g =3.85\pm0.3, v sin i = 8\pm1 km/s, and about solar metallicity from a high-resolution spectrum obtained from the Keck archive.
- Добавил в систему: Гварамадзе Василий Васильевич