@article{d3ed21961937468a8b2c0eaf64a88527,
title = "Origins of Hot Jupiters",
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.",
author = "Dawson, {Rebekah I.} and Johnson, {John Asher}",
note = "Funding Information: We thank Eric Ford, Sivan Ginzburg, Chelsea Huang, Taisiya Kopytova, David Latham, Eve Lee, Gongjie Li, Henry Ngo, Ana-Maria Piso, Johanna Teske, and Yanqin Wu for helpful conversations. We are grateful to Simon Albrecht, Thomas Beatty, Chelsea Huang, Dong Lai, Eve Lee, Alex Mustill, Smadar Naoz, Cristobal Petrovich, and Christopher Spalding for insightful comments on a manuscript draft. We thank Ewine van Dishoeck and two anonymous reviewers for helpful comments that improved the review. We thank Jose Manuel Almenara, Francesca Faedi, Michael Gillon, Guillaume H{\'e}brard, and Rachel Street for providing us with upper limits on the eccentricities of certain hot Jupiters based on their published fits. This work was partially supported by funding from the NASA Exoplanets Research program (NNX16AB50G). The Center for Exoplanets and Habitable Worlds is supported by the Pennsylvania State University, the Eberly College of Science, and the Pennsylvania Space Grant Consortium. Publisher Copyright: Copyright {\textcopyright} 2018 by Annual Reviews. All rights reserved.",
year = "2018",
month = sep,
day = "14",
doi = "10.1146/annurev-astro-081817-051853",
language = "English (US)",
volume = "56",
pages = "175--221",
journal = "Annual Review of Astronomy and Astrophysics",
issn = "0066-4146",
publisher = "Annual Reviews Inc.",
}