Obliquity tides on hot jupiters

被引：90
|
作者：
Winn, JN [1 ]
Holman, MJ [1 ]
机构：
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
来源：
ASTROPHYSICAL JOURNAL | 2005年 / 628卷 / 02期
基金：
美国国家航空航天局;
关键词：
celestial mechanics; planetary systems : formation; planets and satellites : formation; stars : individual (HD 209458);
D O I：
10.1086/432834
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Obliquity tides are a potentially important source of heat for extrasolar planets on close-in orbits. Although tidal dissipation will usually reduce the obliquity to zero, a nonzero obliquity can persist if the planet is in a Cassini state, a resonance between spin precession and orbital precession. Obliquity tides might be the cause of the anomalously large size of the transiting planet HD 209458b.
引用
收藏
页码：L159 / L162
页数：4
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