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HD 202772A b: A Transiting Hot Jupiter around a Bright, Mildly Evolved Star in a Visual Binary Discovered by TESS
- Wang, Songhu;
- Jones, Matias;
- Shporer, Avi;
- Fulton, Benjamin J;
- Paredes, Leonardo A;
- Trifonov, Trifon;
- Kossakowski, Diana;
- Eastman, Jason;
- Redfield, Seth;
- Günther, Maximilian N;
- Kreidberg, Laura;
- Huang, Chelsea X;
- Millholland, Sarah;
- Seligman, Darryl;
- Fischer, Debra;
- Brahm, Rafael;
- Wang, Xian-Yu;
- Cruz, Bryndis;
- Henry, Todd;
- James, Hodari-Sadiki;
- Addison, Brett;
- Liang, En-Si;
- Davis, Allen B;
- Tronsgaard, René;
- Worku, Keduse;
- Brewer, John M;
- Kürster, Martin;
- Zhang, Hui;
- Beichman, Charles A;
- Bieryla, Allyson;
- Brown, Timothy M;
- Christiansen, Jessie L;
- Ciardi, David R;
- Collins, Karen A;
- Esquerdo, Gilbert A;
- Howard, Andrew W;
- Isaacson, Howard;
- Latham, David W;
- Mazeh, Tsevi;
- Petigura, Erik A;
- Quinn, Samuel N;
- Shahaf, Sahar;
- Siverd, Robert J;
- Rodler, Florian;
- Reffert, Sabine;
- Zakhozhay, Olga;
- Ricker, George R;
- Vanderspek, Roland;
- Seager, Sara;
- Winn, Joshua N;
- Jenkins, Jon M;
- Boyd, Patricia T;
- Fűrész, Gábor;
- Henze, Christopher;
- Levine, Alen M;
- Morris, Robert;
- Paegert, Martin;
- Stassun, Keivan G;
- Ting, Eric B;
- Vezie, Michael;
- Laughlin, Gregory
- et al.
Published Web Location
https://doi.org/10.3847/1538-3881/aaf1b7Abstract
We report the first confirmation of a hot Jupiter discovered by the Transiting Exoplanet Survey Satellite (TESS) mission: HD 202772A b. The transit signal was detected in the data from TESS Sector 1, and was confirmed to be of planetary origin through radial velocity (RV) measurements. HD 202772A b is orbiting a mildly evolved star with a period of 3.3 days. With an apparent magnitude of V = 8.3, the star is among the brightest and most massive known to host a hot Jupiter. Based on the 27 days of TESS photometry and RV data from the CHIRON, HARPS, and Tillinghast Reflector Echelle Spectrograph, the planet has a mass of and radius of , making it an inflated gas giant. HD 202772A b is a rare example of a transiting hot Jupiter around a quickly evolving star. It is also one of the most strongly irradiated hot Jupiters currently known.
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