Journal article · Preprint article
TESS Discovery of a Transiting Super-Earth in the pi Mensae System
Massachusetts Institute of Technology1
National Aeronautics and Space Administration2
University of Maryland, College Park3
Johns Hopkins University4
The University of Tokyo5
Lehigh University6
Vanderbilt University7
Aarhus University8
Astrophysics and Atmospheric Physics, National Space Institute, Technical University of Denmark9
National Space Institute, Technical University of Denmark10
University of Texas at Austin11
Princeton University12
University of Southern Queensland13
University of California at Riverside14
Harvard University15
NASA Ames Research Center16
SETI Institute17
University of Geneva18
...and 8 moreWe report the detection of a transiting planet around π Men (HD 39091), using data from the Transiting Exoplanet Survey Satellite (TESS). The solar-type host star is unusually bright (V = 5.7) and was already known to host a Jovian planet on a highly eccentric, 5.7 yr orbit. The newly discovered planet has a size of 2.04 ± 0.05 R ⊕ and an orbital period of 6.27 days.
Radial-velocity data from the High-Accuracy Radial-velocity Planet Searcher and Anglo-Australian Telescope/University College London Echelle Spectrograph archives also displays a 6.27 day periodicity, confirming the existence of the planet and leading to a mass determination of 4.82 ± 0.85 M ⊕. The star's proximity and brightness will facilitate further investigations, such as atmospheric spectroscopy, asteroseismology, the Rossiter-McLaughlin effect, astrometry, and direct imaging.
| Language: | English |
|---|---|
| Publisher: | American Astronomical Society |
| Year: | 2018 |
| Pages: | L39 |
| ISSN: | 20418205 and 20418213 |
| Types: | Journal article and Preprint article |
| DOI: | 10.3847/2041-8213/aaef91 |
| ORCIDs: | 0000-0003-0918-7484 , 0000-0002-0040-6815 , 0000-0001-7246-5438 , 0000-0002-1836-3120 , 0000-0001-7730-2240 , 0000-0002-4265-047X , 0000-0001-9957-9304 , 0000-0002-7084-0529 , 0000-0001-6763-6562 , 0000-0001-9911-7388 , 0000-0002-4715-9460 , 0000-0001-6588-9574 , 0000-0002-8964-8377 , 0000-0001-9704-5405 , 0000-0003-1447-6344 , 0000-0002-8035-4778 , 0000-0002-9003-484X , 0000-0003-2313-467X , 0000-0002-5322-2315 , 0000-0001-9165-9799 , 0000-0003-1667-5427 , 0000-0001-8511-2981 , 0000-0002-8537-5711 , 0000-0002-3827-8417 , 0000-0001-5449-2467 , 0000-0001-8812-0565 , 0000-0002-3481-9052 , 0000-0002-5286-0251 , 0000-0002-7504-365X , 0000-0002-3253-2621 , 0000-0001-7204-6727 , 0000-0001-7014-1771 , 0000-0001-5137-0966 and Buchhave, Lars A. |
