WASP-166b: a bloated super-Neptune transiting a V = 9 star

Coel Hellier; A. H. M. J. Triaud; F. Bouchy; A. Burdanov; A. Collier Cameron; L. Delrez; D. Ehrenreich; M. Gillon; E. Jehin; M. Lendl; E. Linder; L. D. Nielsen; P. F. L. Maxted; F. Pepe; D. Pollacco; D. Queloz; D. Ségransan; B. Smalley; J. J. Spake; L. Y. Temple; S. Udry; R. G. West; A. Wyttenbach

doi:10.1093/mnras/stz1903

WASP-166b: a bloated super-Neptune transiting a V = 9 star

Coel Hellier, A. H. M. J. Triaud, F. Bouchy, A. Burdanov, A. Collier Cameron, L. Delrez, D. Ehrenreich, M. Gillon, E. Jehin, M. Lendl, E. Linder, L. D. Nielsen, P. F. L. Maxted, F. Pepe, D. Pollacco, D. Queloz, D. Ségransan, B. Smalley, J. J. Spake, L. Y. TempleS. Udry, R. G. West, A. Wyttenbach

Research output: Contribution to journal › Article › peer-review

Abstract

We report the discovery of WASP-166b, a super-Neptune planet with a mass of 0.1 M_Jup (1.9 M_Nep) and a bloated radius of 0.63 R_Jup. 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 degrees). 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”.

Original language	English
Pages (from-to)	3067-3075
Journal	Monthly Notices of the Royal Astronomical Society
Volume	488
Issue number	3
Early online date	10 Jul 2019
DOIs	https://doi.org/10.1093/mnras/stz1903
Publication status	Published - Sept 2019

Keywords

Planetary systems
Stars: individual (WASP-166)

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10.1093/mnras/stz1903

Hellier_2019_MNRAS_WASP-166b_AAM
Copyright © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1093/mnras/stz1903
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Hellier, C., Triaud, A. H. M. J., Bouchy, F., Burdanov, A., Cameron, A. C., Delrez, L., Ehrenreich, D., Gillon, M., Jehin, E., Lendl, M., Linder, E., Nielsen, L. D., Maxted, P. F. L., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Spake, J. J., ... 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. https://doi.org/10.1093/mnras/stz1903

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title = "WASP-166b: a bloated super-Neptune transiting a V = 9 star",

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 degrees). 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”.",

keywords = "Planetary systems, Stars: individual (WASP-166)",

author = "Coel Hellier and Triaud, {A. H. M. J.} and F. Bouchy and A. Burdanov and Cameron, {A. Collier} and L. Delrez and D. Ehrenreich and M. Gillon and E. Jehin and M. Lendl and E. Linder and Nielsen, {L. D.} and Maxted, {P. F. L.} and F. Pepe and D. Pollacco and D. Queloz and D. S{\'e}gransan and B. Smalley and Spake, {J. J.} and Temple, {L. Y.} and S. Udry and West, {R. G.} and A. Wyttenbach",

note = "ACC acknowledges support from STFC consolidated grant number ST/R000824/1.",

year = "2019",

month = sep,

doi = "10.1093/mnras/stz1903",

language = "English",

volume = "488",

pages = "3067--3075",

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issn = "0035-8711",

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Hellier, C, Triaud, AHMJ, Bouchy, F, Burdanov, A, Cameron, AC, 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 & Wyttenbach, A 2019, 'WASP-166b: a bloated super-Neptune transiting a V = 9 star', Monthly Notices of the Royal Astronomical Society, vol. 488, no. 3, pp. 3067-3075. https://doi.org/10.1093/mnras/stz1903

TY - JOUR

T1 - WASP-166b

T2 - a bloated super-Neptune transiting a V = 9 star

AU - Hellier, Coel

AU - Triaud, A. H. M. J.

AU - Bouchy, F.

AU - Burdanov, A.

AU - Cameron, A. Collier

AU - Delrez, L.

AU - Ehrenreich, D.

AU - Gillon, M.

AU - Jehin, E.

AU - Lendl, M.

AU - Linder, E.

AU - Nielsen, L. D.

AU - Maxted, P. F. L.

AU - Pepe, F.

AU - Pollacco, D.

AU - Queloz, D.

AU - Ségransan, D.

AU - Smalley, B.

AU - Spake, J. J.

AU - Temple, L. Y.

AU - Udry, S.

AU - West, R. G.

AU - Wyttenbach, A.

N1 - ACC acknowledges support from STFC consolidated grant number ST/R000824/1.

PY - 2019/9

Y1 - 2019/9

N2 - 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 degrees). 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”.

AB - 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 degrees). 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”.

KW - Planetary systems

KW - Stars: individual (WASP-166)

UR - http://adsabs.harvard.edu/abs/2019MNRAS.tmp.1834H

U2 - 10.1093/mnras/stz1903

DO - 10.1093/mnras/stz1903

M3 - Article

SN - 0035-8711

VL - 488

SP - 3067

EP - 3075

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

WASP-166b: a bloated super-Neptune transiting a V = 9 star

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Astronomy at St Andrews 2018-2021: Astronomy at St Andrews 2018-2021

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WASP-166b: a bloated super-Neptune transiting a V = 9 star

Abstract

Keywords

Access to Document

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Astronomy at St Andrews 2018-2021: Astronomy at St Andrews 2018-2021

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