Origins of Hot Jupiters

Rebekah I. Dawson, John Asher Johnson

Research output: Contribution to journalReview articlepeer-review

89 Scopus citations

Abstract

Hot Jupiters were the first exoplanets to be discovered around main sequence stars and astonished us with their close-in orbits. They are a prime example of how exoplanets have challenged our textbook, solar-system inspired story of how planetary systems form and evolve. More than twenty years after the discovery of the first hot Jupiter, there is no consensus on their predominant origin channel. Three classes of hot Jupiter creation hypotheses have been proposed: in situ formation, disk migration, and high-eccentricity tidal migration. Although no origin channel alone satisfactorily explains all the evidence, two major origin channels together plausibly account for properties of hot Jupiters themselves and their connections to other exoplanet populations.

Original languageEnglish (US)
Pages (from-to)175-221
Number of pages47
JournalAnnual Review of Astronomy and Astrophysics
Volume56
DOIs
StatePublished - Sep 14 2018

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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