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EVOLUTION OF OHMICALLY HEATED HOT JUPITERS

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 09 Aug 2011Embargo end date: 01 Jan 2011 United States Publisher:American Astronomical SocietyJournal:The Astrophysical Journal, volume 738, page 1 (issn: 0004-637X, eissn: 1538-4357,

Authors: Batygin, Konstantin; Stevenson, David J.; Bodenheimer, Peter H.;

doi: 10.1088/0004-637x/738/1/1 , 10.48550/arxiv.1101.3800

arXiv: http://arxiv.org/abs/1101.3800

EVOLUTION OF OHMICALLY HEATED HOT JUPITERS

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Abstract

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 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 absence of a massive core, low-mass hot Jupiters can over-flow their Roche-lobes and evaporate on Gyr time-scales, possibly leaving behind small rocky cores.

Accepted to The Astrophysical Journal (2011) 735-2, 9 pages, 8 figures, updated figures 2-4

Country

United States

Related Organizations

California Institute of Technology
United States
University of California, Santa Cruz
United States
California Institute of Technology
United States
University of California System
United States

Keywords

Earth and Planetary Astrophysics (astro-ph.EP), FOS: Physical sciences, planets and satellites: general, 530, methods: analytical, methods: numerical, Astrophysics - Earth and Planetary Astrophysics

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	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%