Warm Jupiters in TESS Full-frame Images: A Catalog and Observed Eccentricity Distribution for Year 1

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 how planetary systems form and evolve. It is currently debated whether Jupiters situ, undergo disk or high-eccentricity tidal migration, have mixture origin channels. These different classes channels lead to expectations for Jupiters’ properties, which are difficult evaluate due the small sample size. We take advantage Transiting Exoplanet Survey Satellite (TESS) survey systematically search Jupiter candidates around main-sequence host stars brighter TESS-band magnitude 12 full-frame images Year 1 TESS Prime Mission data. introduce catalog 55 candidates, including 19 that were not originally released objects interest by team. fit their light curves, characterize eccentricities transit-timing variations, prioritize list ground-based follow-up Extended observations. Using hierarchical Bayesian modeling, we find preliminary eccentricity distributions Warm-Jupiter-candidate using beta distribution, Rayleigh two-component Gaussian distribution functional forms distribution. Additional observations will be required clean false positives full statistical study, derive solutions break degeneracy, provide mass measurements.