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Related papers: Hot Jupiters are Inflated Primarily by Shallow Hea…

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Hot Jupiters receive strong stellar irradiation, producing equilibrium temperatures of $1000 - 2500 \ \mathrm{Kelvin}$. Incoming irradiation directly heats just their thin outer layer, down to pressures of $\sim 0.1 \ \mathrm{bars}$. In…

Earth and Planetary Astrophysics · Physics 2020-05-05 Thaddeus D. Komacek , Andrew N. Youdin

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…

Earth and Planetary Astrophysics · Physics 2022-02-11 Henrik Knierim , Konstantin Batygin , Bertram Bitsch

The unexpectedly large radii of hot Jupiters are a longstanding mystery whose solution will provide important insights into their interior physics. Many potential solutions have been suggested, which make diverse predictions about the…

Earth and Planetary Astrophysics · Physics 2021-03-17 Daniel P. Thorngren , Jonathan J. Fortney , Eric D. Lopez , Travis A. Berger , Daniel Huber

The extremely close proximity of hot Jupiters to their parent stars has dramatically affected both their atmospheres and interiors, inflating them to up to twice the radius of Jupiter. The physical mechanism responsible for this inflation…

Earth and Planetary Astrophysics · Physics 2025-12-24 Daniel P. Thorngren

Many hot and ultra-hot Jupiters have inflated radii, implying that their interiors retain significant entropy from formation. These hot interiors lead to an enhanced internal heat flux that impinges upon the atmosphere from below. In this…

Earth and Planetary Astrophysics · Physics 2022-12-29 Thaddeus D. Komacek , Peter Gao , Daniel P. Thorngren , Erin M. May , Xianyu Tan

Understanding the anomalous radii of many transiting hot gas giant planets is a fundamental problem of planetary science. Recent detections of re-inflated warm Jupiters orbiting post-main-sequence stars and the re-inflation of hot Jupiters…

Earth and Planetary Astrophysics · Physics 2021-03-15 Thaddeus D. Komacek , Daniel P. Thorngren , Eric D. Lopez , Sivan Ginzburg

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…

Earth and Planetary Astrophysics · Physics 2015-05-19 Andrew N. Youdin , Jonathan L. Mitchell

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…

Earth and Planetary Astrophysics · Physics 2015-06-15 David S. Spiegel , Adam Burrows

The radii of hot Jupiters are still not fully understood and all of the proposed explanations are based on the idea that these close-in giant planets possess hot interiors. We approach the radius anomaly problem by adopting a statistical…

Earth and Planetary Astrophysics · Physics 2021-01-20 Paula Sarkis , Christoph Mordasini , Thomas Henning , Gabriel D. Marleau , Paul Mollière

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…

Astrophysics · Physics 2009-11-10 Pin-Gao Gu , Peter H. Bodenheimer , Douglas N. C. Lin

Many giant exoplanets in close orbits have observed radii which exceed theoretical predictions. One suggested explanation for this discrepancy is heat deposited deep inside the atmospheres of these "hot Jupiters". Here, we study extended…

Earth and Planetary Astrophysics · Physics 2016-03-08 Sivan Ginzburg , Re'em Sari

Since the discovery of the first transiting hot Jupiters, models have sought to explain the anomalously large radii of highly irradiated gas giants. We now know that the size of hot Jupiter radius anomalies scales strongly with a planet's…

Earth and Planetary Astrophysics · Physics 2016-02-17 Eric D. Lopez , Jonathan J. Fortney

We present calculations of thermal evolution of Hot Jupiters with various masses and effective temperatures under Ohmic dissipation. The resulting evolutionary sequences show a clear tendency towards inflated radii for effective…

Earth and Planetary Astrophysics · Physics 2015-05-27 Konstantin Batygin , David J. Stevenson , Peter H. Bodenheimer

The inflated radii observed in hundreds of hot Jupiters (HJ) represent a long-standing open issue. In this study, we quantitatively investigate this phenomenon within the framework of Ohmic dissipation arising from magnetic induction in the…

Earth and Planetary Astrophysics · Physics 2025-08-27 Daniele Viganò , Soumya Sengupta , Clàudia Soriano-Guerrero , Rosalba Perna , Albert Elias-López , Sandeep Kumar , Taner Akgün

Some extrasolar giant planets in close orbits---"hot Jupiters"---exhibit larger radii than that of a passively cooling planet. The extreme irradiation $L_{\rm eq}$ these hot Jupiters receive from their close in stars creates a thick…

Earth and Planetary Astrophysics · Physics 2015-06-23 Sivan Ginzburg , Re'em Sari

Tidal heating is often used to interpret "radius anomaly" of hot Jupiters (i.e. radii of a large fraction of hot Jupiters are in excess of 1.2 Jupiter radius which cannot be interpreted by the standard theory of planetary evolution). In…

Earth and Planetary Astrophysics · Physics 2022-02-09 Qiang Hou , Xing Wei

The observed low densities of gas giant planets with a high equilibrium temperature can be simulated in models when a fraction of the surface radiation is deposited deeper in the interior. Meanwhile migration theories suggest that hot…

Earth and Planetary Astrophysics · Physics 2020-06-10 Marit Mol Lous , Yamila Miguel

The 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…

Earth and Planetary Astrophysics · Physics 2025-01-14 Sheng Jin , Dong-Hong Wu , Yi-Xuan Cao , Zi-Yi Guo

Ultra-hot Jupiters are the most highly irradiated gas giant planets, with equilibrium temperatures from 2000 to over 4000 K. Ultra-hot Jupiters are amenable to characterization due to their high temperatures, inflated radii, and short…

Earth and Planetary Astrophysics · Physics 2019-05-15 Joshua D. Lothringer , Travis S. Barman

Context: The anomalously large radii of hot Jupiters has long been a mystery. However, by combining both theoretical arguments and 2D models, a recent study has suggested that the vertical advection of potential temperature leads to an…

Earth and Planetary Astrophysics · Physics 2019-12-18 F. Sainsbury-Martinez , P. Wang , S. Fromang , P. Tremblin , T. Dubos , Y. Meurdesoif , A. Spiga , J. Leconte , I. Baraffe , G. Chabrier , N. Mayne , B. Drummond , F. Debras
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