Hellier, C, Anderson, DR, Triaud, AHMJ, Bouchy, F, Burdanov, A, Collier Cameron, A, Delrez, L, Ehrenreich, D, Gillon, M, Jehin, E, Lendl, M, Linder, E, Nielsen, LD, Maxted, PFL, Pepe, F, Pollacco, D, Queloz, D, Ségransan, D, Smalley, B, Spake, JJ, Temple, LY, Udry, S, West, RG and Wyttenbach, A (2019) WASP-166b: a bloated super-Neptune transiting a V = 9 star. Monthly Notices of the Royal Astronomical Society, 488 (3). 3067 -3075. ISSN 0035-8711

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Abstract

We report the discovery of WASP-166b, a super-Neptune planet with a mass of 0.1 MJup (1.9 MNep) and a bloated radius of 0.63 RJup. It transits a V = 9.36, F9V star in a 5.44-d orbit that is aligned with the stellar rotation axis (sky-projected obliquity angle λ = 3 ± 5 deg). Variations in the radial-velocity measurements are likely the result of magnetic activity over a 12-d stellar rotation period. WASP-166b appears to be a rare object within the ‘Neptune desert’.

Item Type: Article
Additional Information: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2019 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Uncontrolled Keywords: stars, individual, (WASP-166)
Subjects: Q Science > QB Astronomy > QB600 Planets. Planetology
Q Science > QB Astronomy > QB799 Stars
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 23 Sep 2019 10:03
Last Modified: 03 Mar 2021 11:43
URI: https://eprints.keele.ac.uk/id/eprint/6863

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