Results 61 to 70 of about 505 (161)
Most Hot Jupiters Were Cool Giant Planets for More Than 1 Gyr
The Astronomical JournalThe origin of hot Jupiters is the oldest problem in exoplanet astrophysics. Hot Jupiters formed in situ or via disk migration should be in place just a few million years after the formation of their host stars.
Stephen P. Schmidt, Kevin C. Schlaufman
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The Astrophysical Journal Supplement SeriesMany hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang +5 more
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The Heating Efficiency of Hot Jupiters from a Data-driven Perspective
The Astronomical JournalThe inflated radii of hot Jupiters have been explored by various theoretical mechanisms. By connecting planetary thermal evolution models with the observed properties of hot Jupiters using hierarchical Bayesian models, a theoretical parameter called the ...
Sheng Jin +3 more
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THERMODYNAMICS OF ATMOSPHERIC CIRCULATION ON HOT JUPITERS [PDF]
The Astrophysical Journal, 2009 Atmospheric circulation on tidally-locked exoplanets is driven by the absorption and reradiation of heat from the host star. They are natural heat engines, converting heat into mechanical energy. A steady state is possible only if there is a mechanism to dissipate mechanical energy, or if the redistribution of heat is so effective that the Carnot ...
openaire +2 more sources
The Astronomical JournalA significant fraction of hot Jupiters have orbital axes misaligned with their host stars’ spin axes. The large stellar obliquities of these giants have long been considered potential signatures of high-eccentricity migration, which is expected to clear ...
Brandon T. Radzom +7 more
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Hot Jupiter secondary eclipses measured by Kepler
EPJ Web of Conferences, 2011 Hot-Jupiters are known to be dark in visible bandpasses, mainly because of the alkali metal absorption features. The outstanding quality of the Kepler mission photometry allows a detection (or non-detection upper limits on) giant planet secondary ...
Seager S., Demory B.-O.
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Saving Doomed Planets: Mass Loss and Angular Momentum Return Boost Hot Jupiter Survival Rates
The Astrophysical JournalThe existence of giant extrasolar planets on short-period orbits (“hot Jupiters”) challenges planet formation theories because such planets are difficult to form close to the star.
Grant C. Weldon +2 more
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EPJ Web of Conferences, 2013 The WFCAM Transit Survey (WTS) is a near-infrared transit survey running on the United Kingdom Infrared Telescope (UKIRT). We conduct Monte Carlo transit injection and detection simulations for short period (
Murgas F. +13 more
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Separating Super-puffs versus Hot Jupiters among Young Puffy Planets
The Astrophysical JournalDiscoveries of close-in young puffy ( R _p ≳ 6 R _⊕ ) planets raise the question of whether they are bona fide hot Jupiters or puffed-up Neptunes, potentially placing constraints on the formation location and timescale of hot Jupiters.
Amalia Karalis +2 more
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