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Long-term double synchronization in close-in gas giant planets

文献类型：期刊论文

作者Guo SS(郭帅帅)1,2,3,4; Guo JH(郭建恒)1,2,3,4; Su J(苏杰)1,2,3,4; Yan DD(闫冬冬)1,2,3,4
刊名Monthly Notices of the Royal Astronomical Society
出版日期2024-04-01
卷号529期号:3页码:2893-2909
ISSN号0035-8711
关键词planet star interactions stars: rotation stars: low mass planets satellites: dynamical evolution and stability
DOI10.1093/mnras/stae729
产权排序第1完成单位
文献子类Journal article (JA)
英文摘要Hot Jupiters, orbiting their host stars at extremely close distances, undergo tidal evolution, with some being engulfed by their stars due to angular momentum exchanges induced by tidal forces. However, achieving double synchronization can prolong their survival. Using the MESA stellar evolution code, combined with the magnetic braking model of Matt et al. (2015), we calculate 25 000 models with different metallicity and study how to attain the conditions that trigger the long-term double synchronization. Our results indicate that massive planets orbiting stars with lower convective turnover time are easier to achieve long-term double synchronization. The rotation angular velocity at the equilibrium point (Ωsta) is almost equal to orbital angular velocity of planet (n) for the majority of the main sequence lifetime if a system has undergone a long-term double synchronization, regardless of their state at this moment. We further compared our results with known parameters of giant planetary systems and found that those systems with larger planetary masses and lower convective turnover time seem to be less sensitive to changes in the tidal quality factor Qj . We suggest that for systems that fall on the state of Ωsta ≈ n, regardless of their current state, the ∗ synchronization will persist for a long time if orbital synchronization occurs at any stage of their evolution. Our results can be applied to estimate whether a system has experienced long-term double synchronization in the past or may experience it in the future. © 2024 The Author(s).
学科主题天文学
URL标识查看原文
资助项目National Natural Science Foundation of China[11973082];National Natural Science Foundation of China[12288102];National Natural Science Foundation of China[42305136]
语种英语
资助机构National Natural Science Foundation of China[11973082, 12288102, 42305136]
源URL[http://ir.ynao.ac.cn/handle/114a53/26754]  
专题云南天文台_恒星物理研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.International Centre of Supernovae, Yunnan Key Laboratory, Kunming, 650216, China
2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing, 100049, China;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming, 650011, China;
4.Yunnan Observatories, Chinese Academy of Sciences, PO Box 110, Kunming, 650011, China;
推荐引用方式
GB/T 7714		 Guo SS,Guo JH,Su J,et al. Long-term double synchronization in close-in gas giant planets[J]. Monthly Notices of the Royal Astronomical Society,2024,529(3):2893-2909.
APA 郭帅帅,郭建恒,苏杰,&闫冬冬.(2024).Long-term double synchronization in close-in gas giant planets.Monthly Notices of the Royal Astronomical Society,529(3),2893-2909.
MLA 郭帅帅,et al."Long-term double synchronization in close-in gas giant planets".Monthly Notices of the Royal Astronomical Society 529.3(2024):2893-2909.

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来源：云南天文台

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