Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 255, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-4365/abf73c
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Categories
Funding
- NASA's Science Mission directorate
- NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center
- ARC - Wallonia-Brussels Federation
- Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) [FRFC 2.5.594.09.F]
- Swiss National Science Foundation (SNF)
- University of Liege (Belgium)
- Cadi Ayyad University of Marrakech (Morocco)
- French Community of Belgium
- European Research Council (ERC) under the European Union [803193/BEBOP]
- Science and Technology Facilities Council (STFC) [ST/S00193X/1]
- FONDECYT [11200751, 1210718]
- CORFO project [14ENI2-26865]
- ANID-Millennium Science Initiative [ICN12_009]
- Swiss National Science Foundation
- NASA XRP [NNX16AB50G]
- NASA TESS GO [80NSSC18K1695]
- Alfred P. Sloan Foundation's Sloan Research Fellowship
- Pennsylvania State University
- Eberly College of Science
- Pennsylvania Space Grant Consortium
- Simons Foundation
- Center for Computational Astrophysics, Flatiron Institute
- NASA [NNX16AB50G, 907852] Funding Source: Federal RePORTER
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Warm Jupiters, defined as planets larger than 6 Earth radii with orbital periods of 8-200 days, are a key missing piece in our understanding of planetary systems formation and evolution. By utilizing data from the TESS survey, 55 Warm Jupiter candidates were identified, including 19 candidates not originally released by the TESS team. Further ground-based and TESS Extended Mission observations are needed to verify their properties and conduct a full statistical study.
Warm Jupiters-defined here as planets larger than 6 Earth radii with orbital periods of 8-200 days-are a key missing piece in our understanding of how planetary systems form and evolve. It is currently debated whether Warm Jupiters form in situ, undergo disk or high-eccentricity tidal migration, or have a mixture of origin channels. These different classes of origin channels lead to different expectations for Warm Jupiters' properties, which are currently difficult to evaluate due to the small sample size. We take advantage of the Transiting Exoplanet Survey Satellite (TESS) survey and systematically search for Warm Jupiter candidates around main-sequence host stars brighter than the TESS-band magnitude of 12 in the full-frame images in Year 1 of the TESS Prime Mission data. We introduce a catalog of 55 Warm Jupiter candidates, including 19 candidates that were not originally released as TESS objects of interest by the TESS team. We fit their TESS light curves, characterize their eccentricities and transit-timing variations, and prioritize a list for ground-based follow-up and TESS Extended Mission observations. Using hierarchical Bayesian modeling, we find the preliminary eccentricity distributions of our Warm-Jupiter-candidate catalog using a beta distribution, a Rayleigh distribution, and a two-component Gaussian distribution as the functional forms of the eccentricity distribution. Additional follow-up observations will be required to clean the sample of false positives for a full statistical study, derive the orbital solutions to break the eccentricity degeneracy, and provide mass measurements.
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