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Hot Jupiters Are Asynchronous Rotators
The Astrophysical Journal LettersHot Jupiters are typically assumed to be synchronously rotating, from tidal locking. Their thermally driven atmospheric winds experience Lorentz drag on the planetary magnetic field anchored at depth.
Marek Wazny, Kristen Menou
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Annual Review of Astronomy and Astrophysics, 2018 Hot Jupiters were the first exoplanets to be discovered around main sequence stars and astonished us with their close-in orbits. They are a prime example of how exoplanets have challenged our textbook, solar-system inspired story of how planetary systems form and evolve.
John Asher Johnson, Rebekah I. Dawson
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HOT JUPITER MAGNETOSPHERES [PDF]
The Astrophysical Journal, 2011 26 pages, 17 figures (5 color), 2 appendices; submitted to ApJ; higher resolution version available at http://www.astro.virginia.edu/~gbt8f/HotJupMag_fullres_astroph ...
Phil Arras +2 more
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HOT JUPITERS AND COOL STARS [PDF]
The Astrophysical Journal, 2014 38 pages, 15 figures, accepted for publication in ...
Lionel Siess +4 more
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CIRCULATION AND DISSIPATION ON HOT JUPITERS [PDF]
The Astrophysical Journal, 2010 Many global circulation models predict supersonic zonal winds and large vertical shears in the atmospheres of short-period jovian exoplanets. Using linear analysis and nonlinear local simulations, we investigate hydrodynamic dissipation mechanisms to balance the thermal acceleration of these winds.
Jeremy Goodman, Jason Li
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Reinflation of Warm and Hot Jupiters [PDF]
The Astrophysical Journal, 2020 Abstract Understanding the anomalous radii of many transiting hot gas-giant planets is a fundamental problem of planetary science. Recent detections of reinflated warm Jupiters orbiting post-main-sequence stars and the reinflation of hot Jupiters while their host stars evolve on the main sequence may help constrain models for the ...
Thaddeus D. Komacek +3 more
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Inflation of migrated hot Jupiters
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The observed low densities of gas giant planets with a high equilibrium temperature (hot Jupiters) can be simulated in models when a fraction of the surface radiation is deposited deeper in the interior. Meanwhile, migration theories suggest that hot Jupiters formed further away from their host star and migrated inward.
M. Mol Lous +2 more
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Two Classes of Hot Jupiters [PDF]
The Astrophysical Journal, 2007 We identify two classes of transiting planet, based on their equilibrium temperatures and Safronov numbers. We examine various possible explanations for the dichotomy. It may reflect the influence of planet or planetesimal scattering in determining when planetary migration stops.
Travis S. Barman, Brad M. S. Hansen
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Obliquity Tides on Hot Jupiters [PDF]
The Astrophysical Journal, 2005 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
Matthew J. Holman, Joshua N. Winn
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Hot-Jupiters and hot-Neptunes: A common origin? [PDF]
Astronomy & Astrophysics, 2005 We compare evolutionary models for close-in exoplanets coupling irradiation and evaporation due respectively to the thermal and high energy flux of the parent star with observations of recently discovered new transiting planets. The models provide an overall good agreement with observations, although at the very limit of the quoted error bars of OGLE ...
F. Allard +6 more
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