Water- and metal-rich atmospheres on compact hot mini-Neptunes lose mass more slowly than H/He cases at high enrichment levels due to enhanced cooling and higher mean molecular weight.
Inflating Hot Jupiters With Ohmic Dissipation
3 Pith papers cite this work. Polarity classification is still indexing.
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.
years
2026 3verdicts
UNVERDICTED 3representative citing papers
Detection and characterization of two eccentric warm Jupiters TOI-2147 b (P=26.2 d, e=0.29, M=116 M⊕) and TOI-6019 b (P=14.5 d, e=0.48, M=149 M⊕) with TESS and MaHPS data, showing mildly inflated radii consistent with tidal heating.
The paper identifies three key science cases that will require Hubble's short-wavelength capabilities for exoplanet atmosphere studies into the 2030s.
citing papers explorer
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Characterizing Transiting Exoplanet Atmospheres in the 2030s with the Hubble Space Telescope
The paper identifies three key science cases that will require Hubble's short-wavelength capabilities for exoplanet atmosphere studies into the 2030s.