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DOI	10.1051/0004-6361/202039452
	The JADE code: Coupling secular exoplanetary dynamics and photo-evaporation
	Attia, O.; Bourrier, V.; Eggenberger, P.; Mordasini, C.; Beust, H.; Ehrenreich, D.
通讯作者	Attia, O (corresponding author), Univ Geneva, Observ Astron, Chemin Pegasi 51b, CH-1290 Versoix, Switzerland.
来源期刊	ASTRONOMY & ASTROPHYSICS
ISSN	0004-6361
EISSN	1432-0746
出版年	2021
卷号	647
英文摘要	Close-in planets evolve under extreme conditions, which raises questions about their origins and current nature. Two evolutionary mechanisms thought to play a predominant role are orbital migration, which brings them close to their star, and atmospheric escape under the resulting increased irradiation. Yet their relative roles remain poorly understood, in part because we lack numerical models that couple the two mechanisms with high precision and on secular timescales. To address this need, we developed the Joining Atmosphere and Dynamics for Exoplanets (JADE) code, which simulates the secular atmospheric and dynamical evolution of a specific planet around its star, and can include the perturbation induced by a distant third body. On the dynamical side, the three dimensional evolution of the orbit is modeled under stellar and planetary tidal forces, a relativistic correction, and the action of the distant perturber. On the atmospheric side, the vertical structure of the atmosphere is integrated over time based on its thermodynamical properties, inner heating, and the evolving stellar irradiation, which results, in particular, in extreme ultraviolet induced photo-evaporation. The JADE code is benchmarked on GJ436 b, which is a prototype of the evaporating giants on eccentric, misaligned orbits at the edge of the hot Neptunes desert. We confirm previous results that the orbital architecture of GJ436 b is well explained by Kozai migration and bring to light a strong interplay between its atmospheric and orbital evolution. During the resonance phase, the atmosphere pulsates in tune with the Kozai cycles, which leads to stronger tides and an earlier migration. This triggers a strong atmospheric evaporation several billion years after the planet formed, refining the paradigm that mass loss is dominant in the early age of close-in planets. These results suggest that the edge of the desert could be formed of warm Neptunes whose evaporation was delayed by Kozai migration. They strengthen the importance of coupling atmospheric and dynamical evolution over secular timescales, which the JADE code will allow for one to simulate for a wide range of systems.
英文关键词	planetary systems planets and satellites: dynamical evolution and stability planet-star interactions planets and satellites: atmospheres methods: numerical stars: individual: Gliese 436
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000627402200001
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/2XILL650/349600
作者单位	[Attia, O.; Bourrier, V.; Eggenberger, P.; Ehrenreich, D.] Univ Geneva, Observ Astron, Chemin Pegasi 51b, CH-1290 Versoix, Switzerland; [Mordasini, C.] Univ Bern, Dept Space Res & Planetary Sci, Gesellschaftsstr 6, CH-3012 Bern, Switzerland; [Beust, H.] Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
推荐引用方式 GB/T 7714	Attia, O.,Bourrier, V.,Eggenberger, P.,et al. The JADE code: Coupling secular exoplanetary dynamics and photo-evaporation[J],2021,647.
APA	Attia, O.,Bourrier, V.,Eggenberger, P.,Mordasini, C.,Beust, H.,&Ehrenreich, D..(2021).The JADE code: Coupling secular exoplanetary dynamics and photo-evaporation.ASTRONOMY & ASTROPHYSICS,647.
MLA	Attia, O.,et al."The JADE code: Coupling secular exoplanetary dynamics and photo-evaporation".ASTRONOMY & ASTROPHYSICS 647(2021).