Pulsation phases and mode identification of tidally excited oscillations in fourteen Kepler Heartbeat Stars
文献类型：期刊论文
| 作者 | Li MY(李敏榆)1,2,3,4 ; Qian, Sheng-Bang2,3; Zhu LY(朱俐颖)1,4; Guo, Zhao5; Liao WP(廖文萍)1,4; Zhao EG(赵二刚)1,4; Shi XD(施相东)1,4; Li FX(李福兴)1,4; Sun QB(孙起斌)1,4
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2024-04-05 |
| 卷号 | 530期号:1页码:586-596 |
| 关键词 | binary stars (154) elliptical orbits (457) stellar oscillations (1617) pulsating variable stars (1307) |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stae885 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Tidally excited oscillations (TEOs) in Heartbeat Stars (HBSs) are an essential probe of the internal properties of the systems, but their potential has yet to be fully exploited. Based on the orbital parameters of TEO candidates from our previous works, we identify the pulsation phases and amplitudes of TEOs in 14 Kepler HBSs. Most pulsation phases of most systems can be explained by the dominant being l = 2, m = 0, or +/- 2 spherical harmonic, assuming that the spin and orbital axes are aligned, and the pulsations are adiabatic and standing waves. The largest deviation (>6 sigma) occurs in KIC 8459354, which can be explained by the spin-orbit misalignment, and KIC 5877364 has a similar scenario. For KIC 11122789, almost half of the harmonics show large deviations; we cautiously suggest that these harmonics may not be considered TEO candidates. A similar scenario also exists in KIC 6290740. This phases and mode identification approach can also be used inversely to verify the TEO candidates derived by the Fourier analysis. Furthermore, the harmonics with large deviations (>2 sigma) in KIC 4377638, KIC 5090937, and KIC 11403032 can be expected to be travelling waves rather than standing waves. In addition, we also suggest that the apsidal motion could cause large deviations in TEO phases from theoretical values. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
| WOS关键词 | BINARIES ; TIDE |
| 资助项目 | National Natural Science Foundation of China[2022YFE0127300]; International Cooperation Projects of the National Key RD Program[11933008]; International Cooperation Projects of the National Key RD Program[12103084]; National Natural Science Foundation of China[202201AT070092]; National Natural Science Foundation of China[202301AT070352]; Basic Research Project of Yunnan Province[202401AS070046]; Science Foundation of Yunnan Province; Yunnan Revitalization Talent Support Program - NASA Science Mission Directorate |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001198850500016 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China[2022YFE0127300] ; International Cooperation Projects of the National Key RD Program[11933008, 12103084] ; National Natural Science Foundation of China[202201AT070092, 202301AT070352] ; Basic Research Project of Yunnan Province[202401AS070046] ; Science Foundation of Yunnan Province ; Yunnan Revitalization Talent Support Program - NASA Science Mission Directorate |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27101]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 2.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming 650091, China; 3.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, China; 4.University of Chinese Academy of Sciences, No.1 Yanqihu East Road, Huairou District, Beijing 101408, China; 5.Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 0WA, UK |
| 推荐引用方式 GB/T 7714 | Li MY,Qian, Sheng-Bang,Zhu LY,et al. Pulsation phases and mode identification of tidally excited oscillations in fourteen Kepler Heartbeat Stars[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,530(1):586-596. |
| APA | 李敏榆.,Qian, Sheng-Bang.,朱俐颖.,Guo, Zhao.,廖文萍.,...&孙起斌.(2024).Pulsation phases and mode identification of tidally excited oscillations in fourteen Kepler Heartbeat Stars.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,530(1),586-596. |
| MLA | 李敏榆,et al."Pulsation phases and mode identification of tidally excited oscillations in fourteen Kepler Heartbeat Stars".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 530.1(2024):586-596. |
入库方式： OAI收割
来源：云南天文台
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