HD 202772A b: a transiting hot Jupiter around a bright, mildly evolved star in a visual binary discovered by TESS

Wang, Songhu and Jones, Matias and Shporer, Avi and Fulton, Benjamin J. and Paredes, Leonardo A. and Trifonov, Trifon and Kossakowski, Diana and Eastman, Jason and Redfield, Seth and Gunther, Maximilian N. and Kreidberg, Laura and Huang, Chelsea X. and Millholland, Sarah and Seligman, Darryl and Fischer, Debra and Brahm, Rafael and Wang, Xian-Yu and Cruz, Bryndis and Henry, Todd and James, Hodari-Sadiki and Addison, Brett ORCID: https://orcid.org/0000-0003-3216-0626 and Liang, En-Si and Davis, Allen B. and Tronsgaard, Rene and Worku, Keduse and Brewer, John M. and Kurster, Martin and Zhang, Hui and Beichman, Charles A. and Bieryla, Allyson and Brown, Timothy M. and Christiansen, Jessie L. and Ciardi, David R. and Collins, Karen A. and Esquerdo, Gilbert A. and Howard, Andrew W. and Isaacson, Howard and Latham, David W. and Mazeh, Tsevi and Petigura, Erik A. and Quinn, Samuel N. and Shahaf, Sahar and Siverd, Robert J. and Rodler, Florian and Reffert, Sabine and Zakhozhay, Olga and Ricker, George R. and Vanderspek, Roland and Seager, Sara and Winn, Joshua N. and Jenkins, Jon M. and Boyd, Patricia T. and Furesz, Gabor and Henze, Christopher and Levine, Alen M. and Morris, Robert and Paegert, Martin and Stassun, Keivan G. and Ting, Eric B. and Vezie, Michael and Laughlin, Gregory (2019) HD 202772A b: a transiting hot Jupiter around a bright, mildly evolved star in a visual binary discovered by TESS. The Astronomical Journal, 157 (2). pp. 1-11. ISSN 0004-6256

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Abstract

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 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 known to host a hot Jupiter. Based on the 27days of TESS photometry, and radial velocity data from the CHIRON and HARPS spectrographs, the planet has a mass of 1.008+/-0.074 M_J and radius of 1.562+/-0.053 R_J , 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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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2019. The American Astronomical Society. All rights reserved.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Astrophysics (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Astrophysics (1 Aug 2018 -)
Date Deposited: 14 Jul 2020 04:56
Last Modified: 17 Jul 2020 04:54
Uncontrolled Keywords: planetary systems; planets and satellites: detection; stars: individual (TIC 290131778-TOI 123-HD202772; techniques: radial velocities
Fields of Research (2008): 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.3847/1538-3881/aaf1b7
URI: http://eprints.usq.edu.au/id/eprint/38477

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