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Inflating Hot Jupiters With Ohmic Dissipation

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arxiv 1002.3650 v1 pith:MIYOV6MU submitted 2010-02-19 astro-ph.EP

Konstantin Batygin , David J. Stevenson This is my paper · ORCID
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keywords dissipationmodelohmicextrasolarfieldgiantinteriormechanism
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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.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Companion Architectures of Sub-Saturns: Distinct Migration Pathways Across the Neptunian Landscape

    astro-ph.EP 2026-07 accept novelty 6.0 of 10

    Desert/ridge sub-Saturns show ~10% nearby-companion rates like hot Jupiters; savanna ones show ~70% like warm Jupiters, supporting HEM versus quiescent migration.

  2. Escape of Water- and Metal-enriched Atmospheres from compact Hot mini-Neptunes with CHAIN

    astro-ph.EP 2026-06 unverdicted novelty 6.0 of 10

    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.

  3. TOI-2147 b and TOI-6019 b: Two eccentric warm Jupiters detected and characterized with TESS and MaHPS

    astro-ph.EP 2026-06 unverdicted novelty 5.0 of 10

    TOI-2147 b and TOI-6019 b are confirmed eccentric warm Jupiters with masses of 116 and 149 Earth masses and eccentricities of 0.29 and 0.48.

  4. The Lunar Farside Transients and Technology Telescope (LFT3) Mission

    astro-ph.IM 2026-07 conditional novelty 4.0 of 10

    Proposes a $150M-class lunar farside radio telescope (LFT3) to survey 0.1–2700 MHz in the RFI-pristine shielded zone before lunar-orbital interference closes the window.

  5. Characterizing Transiting Exoplanet Atmospheres in the 2030s with the Hubble Space Telescope

    astro-ph.IM 2026-06 unverdicted novelty 2.0 of 10

    The paper identifies three key science cases that will require Hubble's short-wavelength capabilities for exoplanet atmosphere studies into the 2030s.

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