The TESS Grand Unified Hot Jupiter Survey. III. Thirty More Giant Planets*

Le résumé fourni par la source

Abstract We present the discovery of 30 transiting giant planets that were initially detected using data from NASA’s Transiting Exoplanet Survey Satellite mission. These new planets orbit relatively bright (G ≤ 12.5) FGK host stars with orbital periods between 1.6 and 8.2 days, and have radii between 0.9 and 1.7 Jupiter radii. We performed follow-up ground-based photometry, high angular resolution imaging, high-resolution spectroscopy, and radial velocity monitoring for each of these objects to confirm that they are planets and determine their masses and other system parameters. The planets’ masses span more than an order of magnitude (0.17 M J < M p < 3.3 M J). For two planets, TOI-3593 b and TOI-4961 b, we measured significant nonzero eccentricities of 0.1 1 − 0.03 + 0.05 and 0.1 8 − 0.05 + 0.04 , respectively, while for the other planets, the data typically provide a 1σ upper bound of 0.15 on the eccentricity. These discoveries represent a major step toward assembling a complete, magnitude-limited sample of transiting hot Jupiters around FGK stars.

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