WASP-31b: a low-density planet transiting a metal-poor, late-F-type dwarf star

D.~R. Anderson; A. Collier Cameron; C. Hellier; M. Lendl; T.~A. Lister; P.~F.~L. Maxted; D. Queloz; B. Smalley; A.~M.~S. Smith; A.~H.~M.~J. Triaud; R.~G. West; D.~J.~A. Brown; M. Gillon; F. Pepe; D. Pollacco; D. Ségransan; R.~A. Street; S. Udry

doi:10.1051/0004-6361/201016208

WASP-31b: a low-density planet transiting a metal-poor, late-F-type dwarf star

D.~R. Anderson, A. Collier Cameron, C. Hellier, M. Lendl, T.~A. Lister, P.~F.~L. Maxted, D. Queloz, B. Smalley, A.~M.~S. Smith, A.~H.~M.~J. Triaud, R.~G. West, D.~J.~A. Brown, M. Gillon, F. Pepe, D. Pollacco, D. Ségransan, R.~A. Street, S. Udry

Physics and Astronomy

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Abstract

We report the discovery of the low-density, transiting giant planet WASP-31b. The planet is 0.48 Jupiter masses and 1.55 Jupiter radii. It is in a 3.4-day orbit around a metal-poor, late-F-type, V = 11.7 dwarf star, which is a member of a common proper motion pair. In terms of its low density, WASP-31b is second only to WASP-17b, which is a more highly irradiated planet of similar mass. Based in part on observations made with the HARPS spectrograph on the 3.6-m ESO telescope (proposal 085.C-0393) and with the CORALIE spectrograph and the Euler camera on the 1.2-m Euler Swiss telescope, both at the ESO La Silla Observatory, Chile.The photometric time-series and radial-velocity data used in this work are available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/531/A60

Original language	English
Pages (from-to)	A60
Journal	Astronomy and Astrophysics
Volume	531
DOIs	https://doi.org/10.1051/0004-6361/201016208
Publication status	Published - 1 Jul 2011

Keywords

binaries: eclipsing, planetary systems, stars: individual: WASP-31

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Anderson, D. R., Collier Cameron, A., Hellier, C., Lendl, M., Lister, T. A., Maxted, P. F. L., Queloz, D., Smalley, B., Smith, A. M. S., Triaud, A. H. M. J., West, R. G., Brown, D. J. A., Gillon, M., Pepe, F., Pollacco, D., Ségransan, D., Street, R. A., & Udry, S. (2011). WASP-31b: a low-density planet transiting a metal-poor, late-F-type dwarf star. Astronomy and Astrophysics, 531, A60. https://doi.org/10.1051/0004-6361/201016208

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title = "WASP-31b: a low-density planet transiting a metal-poor, late-F-type dwarf star",

abstract = "We report the discovery of the low-density, transiting giant planet WASP-31b. The planet is 0.48 Jupiter masses and 1.55 Jupiter radii. It is in a 3.4-day orbit around a metal-poor, late-F-type, V = 11.7 dwarf star, which is a member of a common proper motion pair. In terms of its low density, WASP-31b is second only to WASP-17b, which is a more highly irradiated planet of similar mass. Based in part on observations made with the HARPS spectrograph on the 3.6-m ESO telescope (proposal 085.C-0393) and with the CORALIE spectrograph and the Euler camera on the 1.2-m Euler Swiss telescope, both at the ESO La Silla Observatory, Chile.The photometric time-series and radial-velocity data used in this work are available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/531/A60 ",

keywords = "binaries: eclipsing, planetary systems, stars: individual: WASP-31",

author = "D.~R. Anderson and {Collier Cameron}, A. and C. Hellier and M. Lendl and T.~A. Lister and P.~F.~L. Maxted and D. Queloz and B. Smalley and A.~M.~S. Smith and A.~H.~M.~J. Triaud and R.~G. West and D.~J.~A. Brown and M. Gillon and F. Pepe and D. Pollacco and D. S{\'e}gransan and R.~A. Street and S. Udry",

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doi = "10.1051/0004-6361/201016208",

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Anderson, DR, Collier Cameron, A, Hellier, C, Lendl, M, Lister, TA, Maxted, PFL, Queloz, D, Smalley, B, Smith, AMS, Triaud, AHMJ, West, RG, Brown, DJA, Gillon, M, Pepe, F, Pollacco, D, Ségransan, D, Street, RA & Udry, S 2011, 'WASP-31b: a low-density planet transiting a metal-poor, late-F-type dwarf star', Astronomy and Astrophysics, vol. 531, pp. A60. https://doi.org/10.1051/0004-6361/201016208

TY - JOUR

T1 - WASP-31b: a low-density planet transiting a metal-poor, late-F-type dwarf star

AU - Anderson, D.~R.

AU - Collier Cameron, A.

AU - Hellier, C.

AU - Lendl, M.

AU - Lister, T.~A.

AU - Maxted, P.~F.~L.

AU - Queloz, D.

AU - Smalley, B.

AU - Smith, A.~M.~S.

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

AU - West, R.~G.

AU - Brown, D.~J.~A.

AU - Gillon, M.

AU - Pepe, F.

AU - Pollacco, D.

AU - Ségransan, D.

AU - Street, R.~A.

AU - Udry, S.

PY - 2011/7/1

Y1 - 2011/7/1

N2 - We report the discovery of the low-density, transiting giant planet WASP-31b. The planet is 0.48 Jupiter masses and 1.55 Jupiter radii. It is in a 3.4-day orbit around a metal-poor, late-F-type, V = 11.7 dwarf star, which is a member of a common proper motion pair. In terms of its low density, WASP-31b is second only to WASP-17b, which is a more highly irradiated planet of similar mass. Based in part on observations made with the HARPS spectrograph on the 3.6-m ESO telescope (proposal 085.C-0393) and with the CORALIE spectrograph and the Euler camera on the 1.2-m Euler Swiss telescope, both at the ESO La Silla Observatory, Chile.The photometric time-series and radial-velocity data used in this work are available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/531/A60

AB - We report the discovery of the low-density, transiting giant planet WASP-31b. The planet is 0.48 Jupiter masses and 1.55 Jupiter radii. It is in a 3.4-day orbit around a metal-poor, late-F-type, V = 11.7 dwarf star, which is a member of a common proper motion pair. In terms of its low density, WASP-31b is second only to WASP-17b, which is a more highly irradiated planet of similar mass. Based in part on observations made with the HARPS spectrograph on the 3.6-m ESO telescope (proposal 085.C-0393) and with the CORALIE spectrograph and the Euler camera on the 1.2-m Euler Swiss telescope, both at the ESO La Silla Observatory, Chile.The photometric time-series and radial-velocity data used in this work are available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/531/A60

KW - binaries: eclipsing, planetary systems, stars: individual: WASP-31

U2 - 10.1051/0004-6361/201016208

DO - 10.1051/0004-6361/201016208

M3 - Article

SN - 0004-6361

VL - 531

SP - A60

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

WASP-31b: a low-density planet transiting a metal-poor, late-F-type dwarf star

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Keywords

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