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

August 2022 • 2022AJ....164...70Y

Authors • 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

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.


IPAC Authors


David Ciardi

Senior Scientist