Inflating Hot Jupiters With Ohmic Dissipation

Abstract

We present a new, magnetohydrodynamic mechanism for inflation of close-in giant extrasolar planets. The idea behind the mechanism is that current, which is induced through interaction of atmospheric winds and the planetary magnetic field, results in significant Ohmic dissipation of energy in the interior. We develop an analytical model for computation of interior Ohmic dissipation, with a simplified treatment of the atmosphere. We apply our model to HD209458b, Tres-4b and HD189733b. With conservative assumptions for wind speed and field strength, our model predicts a generated power that appears to be large enough to maintain the transit radii, opening an unexplored avenue towards solving a decade-old puzzle of extrasolar gas giant radius anomalies.

6 pages, 3 figures, 1 table. Submitted to Astrophysical Journal Letters

References in corpus (18)

• Detection of Planetary Transits Across a Sun-like Star
• Atmospheric circulation of hot Jupiters: Coupled radiative-dynamical general circulation model simulations of HD 189733b and HD 209458b
• Evolution of "51Peg b-like" Planets
• Possible Solutions to the Radius Anomalies of Transiting Giant Planets
• Can TiO Explain Thermal Inversions in the Upper Atmospheres of Irradiated Giant Planets?
• Transmission Spectra of Three-Dimensional Hot Jupiter Model Atmospheres
• On the Radii of Extrasolar Giant Planets
• Theoretical Spectral Models of the Planet HD 209458b with a Thermal Inversion and Water Emission Bands
• Atmospheric Circulation of Hot Jupiters: Three-dimensional circulation models of HD 209458b and HD 189733b with Simplified Forcing
• Probing the Interiors of Very Hot Jupiters Using Transit Light Curves
• The physical properties of extrasolar planets
• Atmospheric Circulation of Hot Jupiters: A Shallow Three-Dimensional Model
• A Theory for the Radius of the Transiting Giant Planet HD 209458b
• Obliquity Tides on Hot Jupiters
• Detection of a Temperature Inversion in the Broadband Infrared Emission Spectrum of TrES-4
• Determination of the Interior Structure of Transiting Planets in Multiple-Planet Systems
• Hydrodynamic Simulations of Unevenly Irradiated Jovian Planets
• Tidal Heating Models for the Radii of the Inflated Transiting Giant Planets WASP-4b, WASP-6b, WASP-12b, and TrES-4

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