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Evolution of Ohmically Heated Hot Jupiters

Batygin, Konstantin and Stevenson, David J. and Bodenheimer, Peter H. (2011) Evolution of Ohmically Heated Hot Jupiters. Astrophysical Journal, 738 (1). Art. No. 1. ISSN 0004-637X.

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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 toward inflated radii for effective temperatures that give rise to significant ionization of alkali metals in the atmosphere, compatible with the trend of the data. The degree of inflation shows that ohmic dissipation along with the likely variability in heavy element content can account for all of the currently detected radius anomalies. Furthermore, we find that in the absence of a massive core, low-mass hot Jupiters can overflow their Roche lobes and evaporate on Gyr timescales, possibly leaving behind small rocky cores.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle Paper
Batygin, Konstantin0000-0002-7094-7908
Stevenson, David J.0000-0001-9432-7159
Additional Information:© 2011 The American Astronomical Society. Received 2011 January 18; accepted 2011 May 20; published 2011 August 9. We are indebted to A. Ingersoll, G. Laughlin, T. Guillot, and T. Schneider for useful conversations, as well as the referee, Jonathan Mitchell, for providing helpful suggestions.
Subject Keywords:methods: analytical; methods: numerical; planets and satellites: general
Issue or Number:1
Classification Code:PACS: 96.30.Kf; 96.15.Lb; 96.15.Hy
Record Number:CaltechAUTHORS:20110908-093323398
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Official Citation:Evolution of Ohmically Heated Hot Jupiters Konstantin Batygin et al. 2011 ApJ 738 1
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:25253
Deposited By: Tony Diaz
Deposited On:08 Sep 2011 17:47
Last Modified:09 Mar 2020 13:18

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