Two classes of hot jupiters

Brad M.S. Hansen; Travis Barman

doi:10.1086/523038

Two classes of hot jupiters

Brad M.S. Hansen, Travis Barman

Research output: Contribution to journal › Article › peer-review

133 Scopus citations

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 language	English (US)
Pages (from-to)	861-871
Number of pages	11
Journal	Astrophysical Journal
Volume	671
Issue number	1
DOIs	https://doi.org/10.1086/523038
State	Published - Dec 10 2007
Externally published	Yes

Keywords

Binaries: eclipsing
Planetary systems: formation
Scattering

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/523038

Cite this

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AB - 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.

KW - Binaries: eclipsing

KW - Planetary systems: formation

KW - Scattering

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Two classes of hot jupiters

Abstract

Keywords

ASJC Scopus subject areas

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