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There have been many proposed explanations for the larger-than-expected radii of some transiting hot Jupiters, including either stellar or orbital energy deposition deep in the atmosphere or deep in the interior. In this paper, we explore…

地球与行星天体物理 · 物理学 2015-06-15 David S. Spiegel , Adam Burrows

We show that a consistent fit to observed secondary eclipse data for several strongly irradiated transiting planets demands a temperature inversion (stratosphere) at altitude. Such a thermal inversion significantly influences the…

天体物理学 · 物理学 2009-11-13 Ivan Hubeny , Adam Burrows

Hot Jupiters have been predicted to have a strong day/night temperature contrast and a hot spot shifted eastward of the substellar point. This was confirmed by numerous phase curve observations probing the longitudinal brightness variation…

地球与行星天体物理 · 物理学 2020-11-18 Vivien Parmentier , Adam P. Showman , Jonathan J. Fortney

We present simulations of atmospheres of Earth-like aquaplanets that are tidally locked to their star, that is, planets whose orbital period is equal to the rotation period about their spin axis, so that one side always faces the star and…

地球与行星天体物理 · 物理学 2011-03-11 Timothy M. Merlis , Tapio Schneider

Hot Jupiter atmospheres exhibit fast, weakly-ionized winds. The interaction of these winds with the planetary magnetic field generates drag on the winds and leads to ohmic dissipation of the induced electric currents. We study the magnitude…

地球与行星天体物理 · 物理学 2015-05-20 Rosalba Perna , Kristen Menou , Emily Rauscher

The intense irradiation received by hot Jupiters suppresses convection in the outer layers of their atmospheres and lowers their cooling rates. "Inflated" hot Jupiters, i.e., those with anomalously large transit radii, require additional…

地球与行星天体物理 · 物理学 2015-05-19 Andrew N. Youdin , Jonathan L. Mitchell

The full-phase infrared light curves of low-eccentricity hot Jupiters show a trend of increasing dayside-to-nightside brightness temperature difference with increasing equilibrium temperature. Here we present a three-dimensional model that…

地球与行星天体物理 · 物理学 2016-10-17 Thaddeus D. Komacek , Adam P. Showman

The discovery of high incidence of hot Jupiters in dense clusters challenges the field-based hot Jupiter formation theory. In dense clusters, interactions between planetary systems and flyby stars are relatively common. This has a…

地球与行星天体物理 · 物理学 2021-01-06 Yi-Han Wang , Nathan W. C. Leigh , Rosalba Perna , Michael M. Shara

Context: Chromospheric activity produces both photometric and spectroscopic variations that can be mistaken as planets. Large spots crossing the stellar disc can produce planet-like periodic variations in the light curve of a star. These…

太阳与恒星天体物理 · 物理学 2015-05-18 R. Martinez-Arnaiz , J. Maldonado , D. Montes , C. Eiroa , B. Montesinos

Several short-period Jupiter-mass planets have been discovered around nearby solar-type stars. During the circularization of their orbits, the dissipation of tidal disturbance by their host stars heats the interior and inflates the sizes of…

天体物理学 · 物理学 2009-11-10 Pin-Gao Gu , Peter H. Bodenheimer , Douglas N. C. Lin

The climate and circulation of a terrestrial planet are governed by, among other things, the distance to its host star, its size, rotation rate, obliquity, atmospheric composition and gravity. Here we explore the effects of the last of…

地球与行星天体物理 · 物理学 2019-08-21 Stephen I. Thomson , Geoffrey K. Vallis

Ultrahot Jupiters (UHJs), being the hottest class of exoplanets known, provide a unique laboratory for testing atmospheric interactions with internal planetary magnetic fields at a large range of temperatures. Thermal ionization of…

地球与行星天体物理 · 物理学 2024-09-24 Hayley Beltz , Emily Rauscher

While cooler giant planets are often observed with non-zero eccentricities, the short-period circular orbits of hot Jupiters suggest that they lose orbital energy and angular momentum due to tidal interactions with their host stars.…

地球与行星天体物理 · 物理学 2019-11-06 Jacob H. Hamer , Kevin C. Schlaufman

Stars with hot Jupiters have obliquities ranging from 0-180 degrees, but relatively little is known about the obliquities of stars with smaller planets. Using data from the California-Kepler Survey, we investigate the obliquities of stars…

The exoplanet population characterized by relatively short orbital periods ($P<100$ d) around solar-type stars is dominated by super-Earths and sub-Neptunes. However, these planets are missing in our Solar System and the reason behind this…

The inflated radii of giant short-period extrasolar planets collectively indicate that the interiors of hot Jupiters are heated by some anomalous energy dissipation mechanism. Although a variety of physical processes have been proposed to…

地球与行星天体物理 · 物理学 2022-02-11 Henrik Knierim , Konstantin Batygin , Bertram Bitsch

Magnetic fields are expected to impact the atmospheric dynamics of hot and ultra-hot Jupiters due to their increased ionization fractions, compared to that of cooler exoplanets, but our ability to model these magnetic processes is limited…

地球与行星天体物理 · 物理学 2025-07-14 Duncan A. Christie , Tom M. Evans-Soma , Nathan J. Mayne , Krisztian Kohary

The correlation between close-in super Earths and distant cold Jupiters in planetary systems has important implications for their formation and evolution. In contrary to some earlier findings, a recent study conducted by Bonomo et al.\…

地球与行星天体物理 · 物理学 2024-03-06 Wei Zhu

The variation in hot Jupiter (HJ) occurrence across stellar environments holds clues as to the dominant formation channels of these extreme planets. Recent studies suggest HJ hosts preferentially reside in regions of high phase space…

地球与行星天体物理 · 物理学 2025-07-16 Mika V. Kontiainen , Cathie J. Clarke , Andrew J. Winter

Many studies have analyzed planetary occurrence rates and their dependence on the host's properties to provide clues to planet formation, but few have focused on the mutual occurrence ratio of different kinds of planets. Such relations…

地球与行星天体物理 · 物理学 2024-04-18 Xiang-Ning Su , Hui Zhang , Ji-Lin Zhou