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Hellier, C ORCID: https://orcid.org/0000-0002-3439-1439, Anderson, DR ORCID: https://orcid.org/0000-0001-7416-7522, 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 ORCID: https://orcid.org/0000-0003-3794-1317, Pepe, F, Pollacco, D, Queloz, D, Ségransan, D, Smalley, B ORCID: https://orcid.org/0000-0002-3456-087X, 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.

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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
Depositing User: Symplectic
Date Deposited: 23 Sep 2019 10:03
Last Modified: 04 Oct 2019 10:48
URI: https://eprints.keele.ac.uk/id/eprint/6863

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