Planck-dust-allsky

TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images

April 2021 • 2021AJ....161..194R

Authors • Rodriguez, Joseph E. • Quinn, Samuel N. • Zhou, George • Vanderburg, Andrew • Nielsen, Louise D. • Wittenmyer, Robert A. • Brahm, Rafael • Reed, Phillip A. • Huang, Chelsea X. • Vach, Sydney • Ciardi, David R. • Oelkers, Ryan J. • Stassun, Keivan G. • Hellier, Coel • Gaudi, B. Scott • Eastman, Jason D. • Collins, Karen A. • Bieryla, Allyson • Christian, Sam • Latham, David W. • Carleo, Ilaria • Wright, Duncan J. • Matthews, Elisabeth • Gonzales, Erica J. • Ziegler, Carl • Dressing, Courtney D. • Howell, Steve B. • Tan, Thiam-Guan • Wittrock, Justin • Plavchan, Peter • McLeod, Kim K. • Baker, David • Wang, Gavin • Radford, Don J. • Schwarz, Richard P. • Esposito, Massimiliano • Ricker, George R. • Vanderspek, Roland K. • Seager, Sara • Winn, Joshua N. • Jenkins, Jon M. • Addison, Brett • Anderson, D. R. • Barclay, Thomas • Beatty, Thomas G. • Berlind, Perry • Bouchy, Francois • Bowen, Michael • Bowler, Brendan P. • Brasseur, C. E. • Briceño, César • Caldwell, Douglas A. • Calkins, Michael L. • Cartwright, Scott • Chaturvedi, Priyanka • Chaverot, Guillaume • Chimaladinne, Sudhish • Christiansen, Jessie L. • Collins, Kevin I. • Crossfield, Ian J. M. • Eastridge, Kevin • Espinoza, Néstor • Esquerdo, Gilbert A. • Feliz, Dax L. • Fenske, Tyler • Fong, William • Gan, Tianjun • Giacalone, Steven • Gill, Holden • Gordon, Lindsey • Granados, A. • Grieves, Nolan • Guenther, Eike W. • Guerrero, Natalia • Henning, Thomas • Henze, Christopher E. • Hesse, Katharine • Hobson, Melissa J. • Horner, Jonathan • James, David J. • Jensen, Eric L. N. • Jimenez, Mary • Jordán, Andrés • Kane, Stephen R. • Kielkopf, John • Kim, Kingsley • Kuhn, Rudolf B. • Latouf, Natasha • Law, Nicholas M. • Levine, Alan M. • Lund, Michael B. • Mann, Andrew W. • Mao, Shude • Matson, Rachel A. • Mengel, Matthew W. • Mink, Jessica • Newman, Patrick • O'Dwyer, Tanner • Okumura, Jack • Palle, Enric • Pepper, Joshua • Quintana, Elisa V. • Sarkis, Paula • Savel, Arjun B. • Schlieder, Joshua E. • Schnaible, Chloe • Shporer, Avi • Sefako, Ramotholo • Seidel, Julia V. • Siverd, Robert J. • Skinner, Brett • Stalport, Manu • Stevens, Daniel J. • Stibbards, Caitlin • Tinney, C. G. • West, R. G. • Yahalomi, Daniel A. • Zhang, Hui

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.

Links


IPAC Authors
(alphabetical)

Unexplainedfiles

Jessie Christiansen

Associate Scientist


Img-1

David Ciardi

Senior Scientist