TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images
Henning, Thomas; Barclay, Thomas; Vanderburg, Andrew; Hellier, Coel; Bieryla, Allyson; Latham, David W.; Quinn, Samuel N.; Berlind, Perry; Calkins, Michael L.; Esquerdo, Gilbert A.; Law, Nicholas M.; Jordán, Andrés; Espinoza, Néstor; Brahm, Rafael; Kane, Stephen R.; Feliz, Dax L.; Pepper, Joshua; Stassun, Keivan G.; Siverd, Robert J.; Zhou, George; Tan, Thiam-Guan; Kuhn, Rudolf B.; Wittenmyer, Robert A.; Schlieder, Joshua E.; Howell, Steve B.; Crossfield, Ian J. M.; Horner, Jonathan; Hobson, Melissa J.; Ziegler, Carl; Collins, Karen A.; Ricker, George R.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; Caldwell, Douglas A.; Shporer, Avi; Collins, Kevin I.; Ciardi, David R.; Guenther, Eike W.; Palle, Enric; Lund, Michael B.; Mann, Andrew W.; Rodriguez, Joseph E.; Oelkers, Ryan J.; Stevens, Daniel J.; Beatty, Thomas G.; Gaudi, B. Scott; Eastman, Jason D.; Jensen, Eric L. N.; McLeod, Kim K.; Reed, Phillip A.; Bowler, Brendan P.; Esposito, Massimiliano; Huang, Chelsea X.; Levine, Alan M.; Matthews, Elisabeth; Vanderspek, Roland K.; Gan, Tianjun; Guerrero, Natalia; Matson, Rachel A.; Sefako, Ramotholo; Nielsen, Louise D.; Giacalone, Steven; Dressing, Courtney D.; Brasseur, C. E.; Plavchan, Peter; Anderson, D. R.; West, R. G.; James, David J.; Mao, Shude; Gonzales, Erica J.; Schwarz, Richard P.; Sarkis, Paula; Baker, David; Christiansen, Jessie L.; Latouf, Natasha; Schnaible, Chloe; Tinney, C. G.; Kielkopf, John; Okumura, Jack; Quintana, Elisa V.; Wright, Duncan J.; Zhang, Hui; Grieves, Nolan; Hesse, Katharine; Yahalomi, Daniel A.; Briceño, César; Mink, Jessica; Henze, Christopher E.; Carleo, Ilaria; Bouchy, Francois; Fong, William; Newman, Patrick; Wittrock, Justin; Mengel, Matthew W.; Savel, Arjun B.; Wang, Gavin; Chaturvedi, Priyanka; Radford, Don J.; Chaverot, Guillaume; Vach, Sydney; Christian, Sam; Addison, Brett; Bowen, Michael; Cartwright, Scott; Chimaladinne, Sudhish; Eastridge, Kevin; Fenske, Tyler; Gill, Holden; Gordon, Lindsey; Granados, A.; Jimenez, Mary; Kim, Kingsley; O'Dwyer, Tanner; Seidel, Julia V.; Skinner, Brett; Stalport, Manu; Stibbards, Caitlin
United States, Switzerland, Australia, Chile, Spain, United Kingdom, Italy, France, Canada, China, Germany, South Africa
Abstract
We present the discovery and characterization of five hot and warm Jupiters—TOI-628 b (TIC 281408474; HD 288842), TOI-640 b (TIC 147977348), TOI-1333 b (TIC 395171208, BD+47 3521A), TOI-1478 b (TIC 409794137), and TOI-1601 b (TIC 139375960)—based on data from NASA's Transiting Exoplanet Survey Satellite (TESS). The five planets were identified from the full-frame images and were confirmed through a series of photometric and spectroscopic follow-up observations by the TESS Follow-up Observing Program Working Group. The planets are all Jovian size (RP = 1.01-1.77 RJ) and have masses that range from 0.85 to 6.33 MJ. The host stars of these systems have F and G spectral types (5595 ≤ Teff ≤ 6460 K) and are all relatively bright (9.5 < V < 10.8, 8.2 < K < 9.3), making them well suited for future detailed characterization efforts. Three of the systems in our sample (TOI-640 b, TOI-1333 b, and TOI-1601 b) orbit subgiant host stars ( $\mathrm{log}$ g < 4.1). TOI-640 b is one of only three known hot Jupiters to have a highly inflated radius (RP > 1.7 RJ, possibly a result of its host star's evolution) and resides on an orbit with a period longer than 5 days. TOI-628 b is the most massive, hot Jupiter discovered to date by TESS with a measured mass of ${6.31}_{-0.30}^{+0.28}$ MJ and a statistically significant, nonzero orbital eccentricity of e = ${0.074}_{-0.022}^{+0.021}$ . This planet would not have had enough time to circularize through tidal forces from our analysis, suggesting that it might be remnant eccentricity from its migration. The longest-period planet in this sample, TOI-1478 b (P = 10.18 days), is a warm Jupiter in a circular orbit around a near-solar analog. NASA's TESS mission is continuing to increase the sample of well-characterized hot and warm Jupiters, complementing its primary mission goals.