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Instability of mass transfer in a planet-star system
Jia S(贾石)1,2,3,4; Spruit, H. C.2; Jia, Shi(Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China)
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2017-02-11
卷号465期号:1页码:149-160
DOI10.1093/mnras/stw1693
产权排序第1完成单位
收录类别SCI
关键词Planets And Satellites: General Planet-star Interactions Stars: General Planetary Systems
摘要We show that the angular momentum exchange mechanism governing the evolution of mass-transferring binary stars does not apply to Roche lobe filling planets, because most of the angular momentum of the mass-transferring stream is absorbed by the host star. Apart from a correction for the difference in specific angular momentum of the stream and the centre of mass of the planet, the orbit does not expand much on Roche lobe overflow. We explore the conditions for dynamically unstable Roche lobe overflow as a function of planetary mass and mass and radius (age) of host star and equation of state of planet. For a Sun-like host, gas giant planets in a range of mass and entropy can undergo dynamical mass transfer. Examples of the evolution of the mass transfer process are given. Dynamic mass transfer of rocky planets depends somewhat sensitively on equation of state used. Silicate planets in the range 1 < M-p < 10M(circle plus) typically go through a phase of dynamical mass transfer before settling to slow overflow when their mass drops to less than 1 M-circle plus.
项目资助者MPG-CAS Joint Doctoral Promotion Program (DPP) ; Max Planck Institute for Astrophysics (MPA)
语种英语
学科领域天文学
文章类型Article
ISSN0035-8711
URL查看原文
归档日期2017-01-05
WOS记录号WOS:000393782000012
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ROCHE-LOBE OVERFLOW ; CATACLYSMIC VARIABLE EVOLUTION ; CLASSICAL T-TAURI ; CLOSE-IN PLANETS ; GIANT PLANETS ; CIRCUMBINARY DISKS ; ACCRETION DISKS ; MAGNETIC-FIELD ; BINARY-SYSTEMS ; HOT JUPITERS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9924
专题大样本恒星演化研究组
中国科学院天体结构与演化重点实验室
通讯作者Jia, Shi(Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Max-Planck-Institut fur Astrophysik, Karl-Schwarzschild-Str. 1, D-85748 Garching, Germany
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
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Jia S,Spruit, H. C.,Jia, Shi. Instability of mass transfer in a planet-star system[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,465(1):149-160.
APA Jia S,Spruit, H. C.,&Jia, Shi.(2017).Instability of mass transfer in a planet-star system.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,465(1),149-160.
MLA Jia S,et al."Instability of mass transfer in a planet-star system".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 465.1(2017):149-160.
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