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Cited by 207Stellar, planetary, and galactic studiesAstro and Planetary ScienceGalaxies: Formation, Evolution, Phenomena

WARM JUPITERS ARE LESS LONELY THAN HOT JUPITERS: CLOSE NEIGHBORS

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Huang, Chelsea, Wu, Yanqin, Triaud, Amaury H. M. J.·2016·The Astrophysical Journal
DOI 10.3847/0004-637x/825/2/98
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Abstract

Exploiting the Kepler transit data, we uncover a dramatic distinction in the prevalence of sub-Jovian companions between systems that contain hot Jupiters (HJs) (periods inward of 10 days) and those that host warm Jupiters (WJs) (periods between 10 and 200 days). HJs, with the singular exception of WASP-47b, do not have any detectable inner or outer planetary companions (with periods inward of 50 days and sizes down to 2 R Earth ). Restricting ourselves to inner companions, our limits reach down to 1 R Earth . In stark contrast, half of the WJs are closely flanked by small companions. Statistically, the companion fractions for hot and WJs are mutually exclusive, particularly in regard to inner companions. The high companion fraction of WJs also yields clues to their formation. The WJs that have close-by siblings should have low orbital eccentricities and low mutual inclinations. The orbital configurations of these systems are reminiscent of those of the low-mass close-in planetary systems abundantly discovered by the Kepler mission. This, and other arguments, lead us to propose that these WJs are formed in situ. There are indications that there may be a second population of WJs with different characteristics. In this picture, WASP-47b could be regarded as the extending tail of the in situ WJs into the HJ region and does not represent the generic formation route for HJs.

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  • Nearby planets are generally absent in systems containing hot Jupiters.

    “Nearby planets are generally absent in systems containing hot Jupiters.”

    From Origins of Hot Jupiters (2018) · cites this paper as Huang, Wu & Triaud (2016)

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Cited by

Sorted by citations

Authors
Huang, C., Wu, Y., & Triaud, A. H. M. J.
Affiliations
University of Toronto (CA)
Corresponding author
Huang, Chelsea
ORCID
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2016-07-06
Volume
825
Issue
2
Pages
98
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.3847/0004-637x/825/2/98
OpenAlex
W2336953531
Cited by
207
References
1
Citations by year
2026: 14 · 2025: 22 · 2024: 19 · 2023: 26 · 2022: 16 · 2021: 22 · 2020: 14 · 2019: 23 · 2018: 20 · 2017: 23 · 2016: 8
FWCI
11.79
Type
journal article
Language
en
Open access
Licence
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion, other-oa)
  • arXiv (Cornell University)
Funders
  • National Aeronautics and Space Administration (NNX09AF08G, NAS 526555)
  • California Institute of Technology
  • Space Telescope Science Institute (NAS5- 26555, 26555)
  • University of Toronto
  • Science Mission Directorate (NAS 5-26555)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
Keywords
warm Jupiters, hot Jupiters, orbital eccentricity, mutual inclination, in situ generation, exoplanet formation

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