干旱区生态环境知识资源中心(Arid): Star-planet interactions VI. Tides, stellar activity, and planetary evaporation

Arid

DOI	10.1051/0004-6361/202039965
	Star-planet interactions VI. Tides, stellar activity, and planetary evaporation
	Rao, Suvrat; Pezzotti, Camilla; Meynet, Georges; Eggenberger, Patrick; Buldgen, Gael; Mordasini, Christoph; Bourrier, Vincent; Ekstrom, Sylvia; Georgy, Cyril
通讯作者	Rao, S (corresponding author), Univ Geneva, Geneva Observ, Maillettes 51, CH-1290 Sauverny, Switzerland. ; Rao, S (corresponding author), Indian Inst Technol Kharagpur, Kharagpur 721302, W Bengal, India. ; Rao, S (corresponding author), Univ Hamburg, Hamburg Observ, Gojenbergsweg 112, D-21029 Hamburg, Germany.
来源期刊	ASTRONOMY & ASTROPHYSICS
ISSN	0004-6361
EISSN	1432-0746
出版年	2021
卷号	651
英文摘要	Context. Tidal interactions and planetary evaporation processes impact the evolution of close-in star-planet systems. Aims. We study the impact of stellar rotation on these processes. Methods. We compute the time evolution of star-planet systems consisting of a planet with an initial mass between 0.02 and 2.5 M-Jup (6 and 800 M-Earth) in a quasi-circular orbit with an initial orbital distance between 0.01 and 0.10 au, around a solar-type star evolving from the pre-main-sequence (PMS) phase until the end of the main-sequence phase. We account for the evolution of: the stellar structure, the stellar angular momentum due to tides and magnetic braking, the tidal interactions (equilibrium and dynamical tides in stellar convective zones), the mass evaporation of the planet, and the secular evolution of the planetary orbit. We consider that at the beginning of the evolution, the proto-planetary disk has fully dissipated and planet formation is complete. Results. We find that both a rapid initial stellar rotation and a more efficient angular momentum transport inside the star, in general, contribute to the enlargement of the domain that is devoid of planets after the PMS phase, in the plane of planet mass versus orbital distance. Comparisons with the observed distribution of exoplanets orbiting solar mass stars, in the plane of planet mass versus orbital distance (addressing the Neptunian desert feature), show an encouraging agreement with the present simulations, especially since no attempts have been made to fine-tune the initial parameters of the models to fit the observations. We also obtain an upper limit for the orbital period of bare-core planets that agrees with observations of the radius valley feature in the plane of planetary radius versus the orbital period. Conclusions. The two effects, namely, tides and planetary evaporation, should be accounted for simultaneously and in a consistent way, with a detailed model for the evolution of the star.
英文关键词	planet-star interactions stars activity stars rotation stars solar-type
类型	Article
语种	英语
开放获取类型	Green Submitted, Green Published
收录类别	SCI-E
WOS记录号	WOS:000672866500002
WOS关键词	LOW-MASS STARS ; BROWN DWARFS ; TIDAL DISSIPATION ; ORBITAL EVOLUTION ; GIANT PLANETS ; WHITE-DWARFS ; ROTATION ; COMPANIONS ; ACCRETION ; VALLEY
WOS类目	Astronomy & Astrophysics
WOS研究方向	Astronomy & Astrophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362618
作者单位	[Rao, Suvrat; Pezzotti, Camilla; Meynet, Georges; Eggenberger, Patrick; Buldgen, Gael; Bourrier, Vincent; Ekstrom, Sylvia; Georgy, Cyril] Univ Geneva, Geneva Observ, Maillettes 51, CH-1290 Sauverny, Switzerland; [Rao, Suvrat] Indian Inst Technol Kharagpur, Kharagpur 721302, W Bengal, India; [Rao, Suvrat] Univ Hamburg, Hamburg Observ, Gojenbergsweg 112, D-21029 Hamburg, Germany; [Mordasini, Christoph] Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland
推荐引用方式 GB/T 7714	Rao, Suvrat,Pezzotti, Camilla,Meynet, Georges,et al. Star-planet interactions VI. Tides, stellar activity, and planetary evaporation[J],2021,651.
APA	Rao, Suvrat.,Pezzotti, Camilla.,Meynet, Georges.,Eggenberger, Patrick.,Buldgen, Gael.,...&Georgy, Cyril.(2021).Star-planet interactions VI. Tides, stellar activity, and planetary evaporation.ASTRONOMY & ASTROPHYSICS,651.
MLA	Rao, Suvrat,et al."Star-planet interactions VI. Tides, stellar activity, and planetary evaporation".ASTRONOMY & ASTROPHYSICS 651(2021).