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Exoplanet Population Synthesis with Account for Orbit Variation Due to Stellar Evolutionстатья
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: 29 сентября 2021 г.
- Авторы: Andryushin A.S., Popov S.B.
- Журнал: Astronomy Reports
- Том: 65
- Номер: 4
- Год издания: 2021
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 246
- Последняя страница: 268
- DOI: 10.1134/S1063772921040016
- Аннотация: In this paper, the orbital evolution of exoplanets at the late stages of stellar evolution was studied using the population synthesis method. Stellar evolution was traced from the main sequence stage to the white dwarf stage. The evolutionary tracks were calculated using the MESA package. The statistics of planets that were absorbed, ejected from the system, and surviving by the time of the transformation of parent stars into white dwarfs was calculated considering the variation in the star formation rate over the entire lifetime of the Galaxy. We considered planets around stars in the range of initial masses (1-8)${{M}_{ \odot }}$ since less massive stars do not leave the main sequence over the lifetime of the Galaxy, and more massive stars do not lead to the formation of white dwarfs. It was found that for the adopted initial distributions of planets on the a-Mpl plane, the majority (about 60%) of planets born around stars in the mass range under study are absorbed by parent stars at the giant stage. A small fraction of planets (less than a percent) are ejected out of their systems under the action of the stream of matter escaping the star. The estimated number of "runaway" planets with masses from 0.04 Earth masses to 13 Jupiter masses in the Galaxy is approximately in the 300 million range.
- Добавил в систему: Попов Сергей Борисович