Obliquity tides on hot Jupiters

Joshua N. Winn; Matthew J. Holman

doi:10.1086/432834

Obliquity tides on hot Jupiters

Joshua N. Winn, Matthew J. Holman

Research output: Contribution to journal › Article › peer-review

88 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	L159-L162
Journal	Astrophysical Journal
Volume	628
Issue number	2 II
DOIs	https://doi.org/10.1086/432834
State	Published - Aug 1 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Celestial mechanics
Planetary systems: formation
Planets and satellites: formation
Stars: individual (HD 209458)

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10.1086/432834

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abstract = "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.",

keywords = "Celestial mechanics, Planetary systems: formation, Planets and satellites: formation, Stars: individual (HD 209458)",

author = "Winn, {Joshua N.} and Holman, {Matthew J.}",

note = "Funding Information: We are indebted to J. Wisdom for his suggestion to investigate Cassini states. We thank R. Crocker, S. Gaudi, G. Laughlin, D. Lin, K. Menou, S. Peale, K. Penev, D. Sasselov, K. Stanek, and W. Ward for helpful discussions. Work by J. N. W. was supported by NASA through grant HST-HF-01180.02-A.",

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AU - Holman, Matthew J.

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N2 - 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.

AB - 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.

KW - Celestial mechanics

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KW - Planets and satellites: formation

KW - Stars: individual (HD 209458)

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Obliquity tides on hot Jupiters

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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