THE EFFECT OF MASS LOSS ON THE TIDAL EVOLUTION OF EXTRASOLAR PLANET

doi:10.1088/0004-637X/712/2/1107

YNAO OpenIR > 恒星物理研究组

	THE EFFECT OF MASS LOSS ON THE TIDAL EVOLUTION OF EXTRASOLAR PLANET
	Guo JH(郭建恒)1,2,3 ; Guo, JH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	ASTROPHYSICAL JOURNAL
	2010-04-01
卷号	712 期号:2 页码:1107-1115
DOI	10.1088/0004-637X/712/2/1107
产权排序	第1完成单位
收录类别	SCI
关键词	Planetary Systems Planets And Satellites: General Stars: Individual (Hd 209458)
摘要	By combining mass loss and tidal evolution of close-in planets, we present a qualitative study on their tidal migrations. We incorporate mass loss in tidal evolution for planets with different masses and find that mass loss could interfere with tidal evolution. In an upper limit case (beta = 3), a significant portion of mass may be evaporated in a long evolution timescale. Evidence of greater modification of the planets with an initial separation of about 0.1 AU than those with a = 0.15 AU can be found in this model. With the assumption of a large initial eccentricity, the planets with initial mass <= 1 M(J) and initial distance of about 0.1 AU could not survive. With the supposition of beta = 1.1, we find that the loss process has an effect on the planets with low mass at a similar to 0.05 AU. In both cases, the effect of evaporation on massive planets can be neglected. Also, heating efficiency and initial eccentricity have significant influence on tidal evolution. We find that even low heating efficiency and initial eccentricity have a significant effect on tidal evolution. Our analysis shows that evaporation on planets with different initial masses can accelerate (decelerate) the tidal evolution due to the increase (decrease) in tide of the planet (star). Consequently, the effect of evaporation cannot be neglected in evolutionary calculations of close-in planets. The physical parameters of HD 209458b can be fitted by our model.
项目资助者	National Natural Science Foundation of China [10803018] ; Knowledge Innovation Program of Chinese Academy of Sciences [07ACX21001] ; Western Light Talent Culture Project of The Chinese Academy of Sciences [08AXB31001]
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-637X
URL	查看原文
归档日期	2010-06-23
WOS记录号	WOS:000275594600028
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	STELLAR X-RAY ; TRANSITING GIANT PLANETS ; HOT-JUPITERS ; ATMOSPHERIC ESCAPE ; SOLID EXOPLANETS ; RADIUS ; PERIOD ; EQUILIBRIUM ; EVAPORATION ; FRICTION
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5201
专题	恒星物理研究组中国科学院天体结构与演化重点实验室
通讯作者	Guo, JH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 2.Department of Earth, Atmospheric, and Planetary Science, Massachusetts Institute of Technology, Cambridge, MA 01742, USA 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Guo JH,Guo, JH . THE EFFECT OF MASS LOSS ON THE TIDAL EVOLUTION OF EXTRASOLAR PLANET[J]. ASTROPHYSICAL JOURNAL,2010,712(2):1107-1115.
APA	Guo JH,&Guo, JH .(2010).THE EFFECT OF MASS LOSS ON THE TIDAL EVOLUTION OF EXTRASOLAR PLANET.ASTROPHYSICAL JOURNAL,712(2),1107-1115.
MLA	Guo JH,et al."THE EFFECT OF MASS LOSS ON THE TIDAL EVOLUTION OF EXTRASOLAR PLANET".ASTROPHYSICAL JOURNAL 712.2(2010):1107-1115.

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