Pierre Maxted p.maxted@keele.ac.uk
Discovery of WASP-174b: Doppler tomography of a near-grazing transit
Maxted; Hellier; Smalley
Authors
Coel Hellier c.hellier@keele.ac.uk
Barry Smalley b.smalley@keele.ac.uk
Abstract
We report the discovery and tomographic detection of WASP-174b, a planet with a near-grazing transit on a 4.23-d orbit around a V = 11.9, F6V star with [Fe/H] = 0.09 ± 0.09. The planet is in a moderately misaligned orbit with a sky-projected spin–orbit angle of ? = 31° ± 1°. This is in agreement with the known tendency for orbits around hotter stars to be misaligned. Owing to the grazing transit the planet’s radius is uncertain, with a possible range of 0.8–1.8 RJup. The planet’s mass has an upper limit of 1.3 MJup. WASP-174 is the faintest hot-Jupiter system so far confirmed by tomographic means.
| Acceptance Date | Feb 1, 2018 |
|---|---|
| Publication Date | Nov 11, 2018 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Print ISSN | 0035-8711 |
| Publisher | Oxford University Press |
| Pages | 5307-5313 |
| DOI | https://doi.org/10.1093/mnras/sty2197 |
| Keywords | astrophysics |
| Publisher URL | http://doi.org/10.1093/mnras/sty2197 |
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