Journal article · Preprint article
HD 202772A b: A Transiting Hot Jupiter around a Bright, Mildly Evolved Star in a Visual Binary Discovered by TESS
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.
| Language: | English |
|---|---|
| Publisher: | American Astronomical Society |
| Year: | 2019 |
| Pages: | 51 |
| ISSN: | 15384357 , 0004637x , 15383881 and 00046256 |
| Types: | Journal article and Preprint article |
| DOI: | 10.3847/1538-3881/aaf1b7 |
| ORCIDs: | Tronsgaard, René , 0000-0002-7846-6981 , 0000-0002-1836-3120 , 0000-0003-3504-5316 , 0000-0002-0236-775X , 0000-0003-3773-5142 , 0000-0003-3786-3486 , 0000-0002-3164-9086 , 0000-0003-0514-1147 , 0000-0003-0918-7484 , 0000-0003-3130-2282 , 0000-0003-2221-0861 , 0000-0002-9158-7315 , 0000-0002-5070-8395 , 0000-0002-9873-1471 , 0000-0003-3491-6394 , 0000-0001-6637-5401 , 0000-0001-5062-0847 , 0000-0002-8035-4778 , 0000-0001-6588-9574 , 0000-0002-0531-1073 , 0000-0001-9911-7388 , 0000-0002-8964-8377 , 0000-0001-5016-3359 , 0000-0001-6763-6562 , 0000-0002-4265-047X , 0000-0002-4715-9460 , 0000-0003-0442-4284 , 0000-0001-8120-7457 , 0000-0002-3481-9052 and 0000-0002-3253-2621 |
