Dong, J, Huang, C, Dawson, R, Foreman-Mackey, D, Collins, K, Quinn, S, Lissauer, J, Beatty, T, Quarles, B, Sha, L, Shporer, A, Guo, Z, Kane, S, Abe, L, Barkaoui, K, Benkhaldoun, Z, Brahm, R, Bouchy, F, Carmichael, T, Collins, K, Conti, D, Crouzet, N, Dransfield, G, Evans, P, Gan, T, Ghachoui, M, Gillon, M, Grieves, N, Guillot, T, Hellier, C, Jehin, E, Jensen, E, Jordan, A, Kamler, J, Kielkopf, J, Mekarnia, D, Nielsen, L, Pozuelos, F, Radford, D, Schmider, FX, Schwarz, R, Stockdale, C, Tan, TG, Timmermans, M, Triaud, A, Wang, G, Ricker, G, Vanderspek, R, Latham, D, Seager, S, Winn, J, Jenkins, J, Mireles, I, Yahalomi, D, Morgan, E, Vezie, M, Quintana, E, Rose, M, Smith, J and Shiao, B (2021) Warm Jupiters in TESS Full-frame Images: A Catalog and Observed Eccentricity Distribution for Year 1. The Astrophysical Journal: an international review of astronomy and astronomical physics. ISSN 0004-637X

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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.

Item Type: Article
Additional Information: The final version of this manuscript and all relevant information related to it, including copyrights, can be found online at;
Subjects: Q Science > Q Science (General)
Q Science > QB Astronomy
Q Science > QB Astronomy > QB460 Astrophysics
Q Science > QB Astronomy > QB600 Planets. Planetology
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 04 Aug 2021 14:32
Last Modified: 28 Jun 2022 01:30

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