Projects per year
Abstract
We report the joint WASP/KELT discovery of WASP-167b/KELT-13b, a transiting hot Jupiter with a 2.02-d orbit around a V = 10.5, F1V star with [Fe/H] = 0.1 ± 0.1. The 1.5 RJup planet was confirmed by Doppler tomography of the stellar line profiles during transit. We place a limit of <8 MJup on its mass. The planet is in a retrograde orbit with a sky-projected spin–orbit angle of λ = −165° ± 5°. This is in agreement with the known tendency for orbits around hotter stars to be more likely to be misaligned. WASP-167/KELT-13 is one of the few systems where the stellar rotation period is less than the planetary orbital period. We find evidence of non-radial stellar pulsations in the host star, making it a δ-Scuti or γ-Dor variable. The similarity to WASP-33, a previously known hot-Jupiter host with pulsations, adds to the suggestion that close-in planets might be able to excite stellar pulsations.
| Original language | English |
|---|---|
| Pages (from-to) | 2743-2752 |
| Number of pages | 10 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 471 |
| Issue number | 3 |
| Early online date | 13 Jul 2017 |
| DOIs | |
| Publication status | Published - Nov 2017 |
Keywords
- Techniques: photometric
- Techniques: spectroscopic
- Planets and satellites: individual
- Stars: individual
- Starts: rotation
Fingerprint
Dive into the research topics of 'WASP-167b/KELT-13b: joint discovery of a hot Jupiter transiting a rapidly rotating F1V star'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Astronomy at St Andrews 2015-2018: Astronomy at St Andrews 2015-2018
Jardine, M. (PI), Cameron, A. (CoI), Cyganowski, C. (CoI), Horne, K. (CoI) & Wood, K. (CoI)
Science & Technology Facilities Council
1/04/15 → 31/03/18
Project: Standard
Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver