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29 March 2024
 
  » arxiv » astro-ph/0303362

 Article overview


The Effect of Tidal Inflation Instability on the Mass and Dynamical Evolution of Extrasolar Planets with Ultra-Short Periods
Pin-Gao Gu ; Doug Lin ; Peter Bodenheimer ;
Date 17 Mar 2003
Journal Astrophys.J. 588 (2003) 509-534
Subject astro-ph
AffiliationASIAA), Doug Lin (UCO/Lick), Peter Bodenheimer (UCO/Lick
AbstractWe investigate the possibility of substantial inflation of short-period Jupiter-mass planets, as a result of their internal tidal dissipation associated with the synchronization and circularization of their orbits. We employ the simplest prescription based on an equilibrium model with a constant lag angle for all components of the tide. We show that for young Jupiter-mass planets, with a period less than 3 days, an initial radius about 2 Jupiter radii, and an orbital eccentricity greater than 0.2, the energy dissipated during the circularization of their orbits is sufficiently intense and protracted to inflate their sizes up to their Roche radii.
Source arXiv, astro-ph/0303362
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