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

Coel Hellier; D. R. Anderson; 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. Segransan; B. Smalley; J. J. Spake; L. Y. Temple; S. Udry; R. G. West; A. Wyttenbach

doi:10.1093/mnras/stz1903

L. Y. Temple, S. Udry, R. G. West, A. Wyttenbach

Physics and Astronomy

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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 lambda = 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
DOIs	https://doi.org/10.1093/mnras/stz1903
Publication status	Published - 10 Jul 2019

Keywords

astro-ph.EP
stars: individual: WASP-166

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Hellier_et_al_WASP-166b_a_bloated_super-Neptune_transiting_a_V__=_9_star_MNRAS_2019
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Cite this

Hellier, C., Anderson, D. R., 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., Segransan, D., Smalley, B., ... 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 lambda = 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 = "astro-ph.EP, stars: individual: WASP-166",

author = "Coel Hellier and Anderson, \{D. R.\} 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. Segransan and B. Smalley and Spake, \{J. J.\} and Temple, \{L. Y.\} and S. Udry and West, \{R. G.\} and A. Wyttenbach",

year = "2019",

month = jul,

day = "10",

doi = "10.1093/mnras/stz1903",

language = "English",

volume = "488",

pages = "3067–3075",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "SIPRI/Oxford University Press",

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Hellier, C, Anderson, DR, 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, Segransan, 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 - Anderson, D. R.

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 - Segransan, D.

AU - Smalley, B.

AU - Spake, J. J.

AU - Temple, L. Y.

AU - Udry, S.

AU - West, R. G.

AU - Wyttenbach, A.

PY - 2019/7/10

Y1 - 2019/7/10

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 lambda = 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 lambda = 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 - astro-ph.EP

KW - stars: individual: WASP-166

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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