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