Two classes of hot jupiters

Brad M S Hansen, Travis S Barman

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

We identify two classes of transiting planet, based on their equilibrium temperatures and Safronov numbers. We examine various possible explanations for the dichotomy. It may reflect the influence of planet or planetesimal scattering in determining when planetary migration stops. Another possibility is that some planets lose more mass to evaporation than others. If this evaporation process preferentially removes helium from the planet, the consequent reduction in the mean molecular weight may explain why some planets have anomalously large radii.

Original languageEnglish (US)
Pages (from-to)861-871
Number of pages11
JournalAstrophysical Journal
Volume671
Issue number1
DOIs
StatePublished - Dec 10 2007
Externally publishedYes

Fingerprint

Jupiter (planet)
Jupiter
planets
planet
evaporation
dichotomies
protoplanets
planetesimal
helium
molecular weight
scattering
radii
temperature

Keywords

  • Binaries: eclipsing
  • Planetary systems: formation
  • Scattering

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Two classes of hot jupiters. / Hansen, Brad M S; Barman, Travis S.

In: Astrophysical Journal, Vol. 671, No. 1, 10.12.2007, p. 861-871.

Research output: Contribution to journalArticle

Hansen, Brad M S ; Barman, Travis S. / Two classes of hot jupiters. In: Astrophysical Journal. 2007 ; Vol. 671, No. 1. pp. 861-871.
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