The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

Yee, Samuel W.; Winn, Joshua N.; Hartman, Joel D.; Rodriguez, Joseph E.; Zhou, George; Quinn, Samuel N.; Latham, David W.; Bieryla, Allyson; Collins, Karen A.; Addison, Brett C.; Angelo, Isabel; Barkaoui, Khalid; Benni, Paul; Boyle, Andrew W.; Brahm, Rafael; Butler, R. Paul; Ciardi, David R.; Collins, Kevin I.; Conti, Dennis M.; Crane, Jeffrey D.; Dai, Fei; Dressing, Courtney D.; Eastman, Jason D.; Essack, Zahra; Forés-Toribio, Raquel; Furlan, Elise; Gan, Tianjun; Giacalone, Steven; Gill, Holden; Girardin, Eric; Henning, Thomas; Henze, Christopher E.; Hobson, Melissa J.; Horner, Jonathan; Howard, Andrew W.; Howell, Steve B.; Huang, Chelsea X.; Isaacson, Howard; Jenkins, Jon M.; Jensen, Eric L. N.; Jordán, Andrés; Kane, Stephen R.; Kielkopf, John F.; Lasota, Slawomir; Levine, Alan M.; Lubin, Jack; Mann, Andrew W.; Massey, Bob; McLeod, Kim K.; Mengel, Matthew W.; Muñoz, Jose A.; Murgas, Felipe; Palle, Enric; Plavchan, Peter; Popowicz, Adam; Radford, Don J.; Ricker, George R.; Rowden, Pamela; Safonov, Boris S.; Savel, Arjun B.; Schwarz, Richard P.; Seager, S.; Sefako, Ramotholo; Shporer, Avi; Srdoc, Gregor; Strakhov, Ivan S.; Teske, Johanna K.; Tinney, C. G.; Tyler, Dakotah; Wittenmyer, Robert A.; Zhang, Hui; Ziegler, Carl
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The Astronomical Journal

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Hot Jupiters-short-period giant planets-were the first extrasolar planets to be discovered, but many questions about their origin remain. NASA's Transiting Exoplanet Survey Satellite (TESS), an all-sky search for transiting planets, presents an opportunity to address these questions by constructing a uniform sample of hot Jupiters for demographic study through new detections and unifying the work of previous ground-based transit surveys. As the first results of an effort to build this large sample of planets, we report here the discovery of 10 new hot Jupiters (TOI-2193A b, TOI-2207b, TOI-2236b, TOI-2421b, TOI-2567b, TOI-2570b, TOI-3331b, TOI-3540A b, TOI-3693b, TOI-4137b). All of the planets were identified as planet candidates based on periodic flux dips observed by TESS, and were subsequently confirmed using ground-based time-series photometry, high-angular-resolution imaging, and high-resolution spectroscopy coordinated with the TESS Follow-up Observing Program. The 10 newly discovered planets orbit relatively bright F and G stars (G < 12.5, T eff between 4800 and 6200 K). The planets' orbital periods range from 2 to 10 days, and their masses range from 0.2 to 2.2 Jupiter masses. TOI-2421b is notable for being a Saturn-mass planet and TOI-2567b for being a "sub-Saturn," with masses of 0.322 ± 0.073 and 0.195 ± 0.030 Jupiter masses, respectively. We also measured a detectably eccentric orbit (e = 0.17 ± 0.05) for TOI-2207b, a planet on an 8 day orbit, while placing an upper limit of e < 0.052 for TOI-3693b, which has a 9 day orbital period. The 10 planets described here represent an important step toward using TESS to create a large and statistically useful sample of hot Jupiters.
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