| Revealing the Fate of Exoplanet Systems: Asteroseismic Identification of Host Star in the Red Clump or Red Giant Branch | |
Lin WX(林文徐)1,2,3,4 ; Qian, Sheng-Bang2,3; Zhu LY(朱俐颖)1,4
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| 发表期刊 | ASTROPHYSICAL JOURNAL LETTERS
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| 2024-08-01 | |
| 卷号 | 971期号:2 |
| DOI | 10.3847/2041-8213/ad6c49 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 摘要 | Determining the evolutionary stage of stars is crucial for understanding the evolution of exoplanetary systems. In this context, red giant branch (RGB) and red clump (RC) stars, which formed at stages in the later evolution of stars situated before and after the helium flash, harbor critical clues to unveiling the evolution of planets. The first step in revealing these clues is to confirm the evolutionary stage of the host stars through asteroseismology. However, up to now, host stars confirmed to be RGB or RC stars are extremely rare. In this investigation, we present a comprehensive asteroseismic analysis of two evolved stars, HD 120084 and HD 29399, known to harbor exoplanets, using data from the Transiting Exoplanet Survey Satellite. We have discovered for the first time that HD 120084 is an RC star in the helium-core-burning phase, and confirmed that HD 29399 is an RGB star in the hydrogen-shell burning phase. Through the precise measurement of asteroseismic parameters such as nu(max) , Delta nu, and Delta Pi(1), we have determined the evolutionary states of these stars and derived their fundamental stellar parameters. The significance of this study lies in the application of automated techniques to measure asymptotic period spacings in red giants, which provides critical insights into the evolutionary outcomes of exoplanet systems. We demonstrate that asteroseismology is a potent tool for probing the internal structures of stars, thereby offering a window into the past and future dynamics of planetary orbits. The presence of a long-period giant planet orbiting HD 120084, in particular, raises intriguing questions about the potential engulfment of inner planets during the host star's expansion, a hypothesis that warrants further investigation. |
| 资助项目 | National Key R&D Program of China[2022YFE0116800]; National Natural Science Foundation of China[11933008]; National Natural Science Foundation of China[12103084]; Basic research project of Yunnan Province[202301AT070352]; NASA Science Mission Directorate |
| 项目资助者 | National Key R&D Program of China[2022YFE0116800] ; National Natural Science Foundation of China[11933008, 12103084] ; Basic research project of Yunnan Province[202301AT070352] ; NASA Science Mission Directorate |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 恒星与银河系 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 2041-8205 |
| URL | 查看原文 |
| WOS记录号 | WOS:001295474900001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | PERIOD SPACINGS ; SOLAR-TYPE ; CONVECTIVE BOUNDARIES ; CORE STRUCTURE ; MASS STARS ; STELLAR ; MODULES ; ROTATION ; OSCILLATIONS ; COMPANIONS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27573 |
| 专题 | 双星与变星研究组 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 2.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming 650091, People's Republic of China; [email protected]; 3.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China; 4.University of Chinese Academy of Sciences, No.1 Yanqihu East Rd, Huairou District, Beijing, 101408, People's Republic of China |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Lin WX,Qian, Sheng-Bang,Zhu LY. Revealing the Fate of Exoplanet Systems: Asteroseismic Identification of Host Star in the Red Clump or Red Giant Branch[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,971(2). |
| APA | 林文徐,Qian, Sheng-Bang,&朱俐颖.(2024).Revealing the Fate of Exoplanet Systems: Asteroseismic Identification of Host Star in the Red Clump or Red Giant Branch.ASTROPHYSICAL JOURNAL LETTERS,971(2). |
| MLA | 林文徐,et al."Revealing the Fate of Exoplanet Systems: Asteroseismic Identification of Host Star in the Red Clump or Red Giant Branch".ASTROPHYSICAL JOURNAL LETTERS 971.2(2024). |
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