HD 202772A b: A Transiting Hot Jupiter around a Bright, Mildly Evolved Star in a Visual Binary Discovered by TESS

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review


  • Author: Wang, Songhu

  • Author: Jones, Matias

  • Author: Shporer, Avi

  • Author: Fulton, Benjamin J.

  • Author: Paredes, Leonardo A.

  • Author: Trifonov, Trifon

  • Author: Kossakowski, Diana

  • Author: Eastman, Jason D.

  • Author: Redfield, Seth

  • Author: Günther, Maximilian N.

  • Author: Kreidberg, Laura

  • Author: Huang, Chelsea X.

  • Author: Millholland, Sarah

  • Author: Seligman, Darryl

  • Author: Fischer, Debra

  • Author: Brahm, Rafael

  • Author: Wang, Xian-Yu

  • Author: Cruz, Bryndis

  • Author: Henry, Todd

  • Author: James, Hodari-Sadiki

  • Author: Addison, Brett

  • Author: Liang, En-Si

  • Author: Davis, Allen B.

  • Author: Tronsgaard, René

    Astrophysics and Atmospheric Physics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Worku, Keduse

  • Author: Brewer, John M.

  • Author: Kürster, Martin

  • Author: Zhang, Hui

  • Author: Beichman, Charles A.

  • Author: Bieryla, Allyson

  • Author: Brown, Timothy M.

  • Author: Christiansen, Jessie L.

  • Author: Ciardi, David R.

  • Author: Collins, Karen A.

  • Author: Esquerdo, Gilbert A.

  • Author: Howard, Andrew W.

  • Author: Isaacson, Howard

  • Author: Latham, David W.

  • Author: Mazeh, Tsevi

  • Author: Petigura, Erik A.

  • Author: Quinn, Samuel N.

  • Author: Shahaf, Sahar

  • Author: Siverd, Robert J.

  • Author: Rodler, Florian

  • Author: Reffert, Sabine

  • Author: Zakhozhay, Olga

  • Author: Ricker, George R.

  • Author: Vanderspek, Roland K.

  • Author: Seager, Sara

  • Author: Winn, Joshua N.

  • Author: Jenkins, Jon M.

  • Author: T. Boyd, Patricia

  • Author: Fűrész, Gábor

  • Author: Henze, Christopher

  • Author: M. Levine, Alen

  • Author: Morris, Robert

  • Author: Paegert, Martin

  • Author: G. Stassun, Keivan

  • Author: B. Ting, Eric

  • Author: Vezie, Michael

  • Author: Laughlin, Gregory

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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 1.017+0.070/- 0.068 MJ and radius of 1.545 +0.052/-0.060 RJ, 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.
Original languageEnglish
Article number51
JournalAstrophysical Journal
Issue number2
Number of pages11
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Planetary systems, Planets and satellites: detection, Stars: individual (TIC 290131778-TOI 123-HD 202772, Techniques: radial velocities

ID: 167723750