WASP-80b: a gas giant transiting a cool dwarf

A.H.M.J. Triaud; D.R. Anderson; A. Collier Cameron; A.P. Doyle; A. Fumel; M. Gillon; C. Hellier; E. Jehin; M. Lendl; C. Lovis; P.F.L. Maxted; F. Pepe; D. Pollacco; D. Queloz; D. Ségransan; B. Smalley; A.M.S. Smith; S. Udry; R.G. West; P.J. Wheatley

doi:10.1051/0004-6361/201220900

WASP-80b: a gas giant transiting a cool dwarf

A.H.M.J. Triaud, D.R. Anderson, A. Collier Cameron, A.P. Doyle, A. Fumel, M. Gillon, C. Hellier, E. Jehin, M. Lendl, C. Lovis, P.F.L. Maxted, F. Pepe, D. Pollacco, D. Queloz, D. Ségransan, B. Smalley, A.M.S. Smith, S. Udry, R.G. West, P.J. Wheatley

School of Physics and Astronomy

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

Abstract

We report the discovery of a planet transiting the star WASP-80 (1SWASP J201240.26-020838.2; 2MASS J20124017-0208391; TYC 5165-481-1; BPM 80815; V = 11.9, K = 8.4). Our analysis shows this is a 0.55 ± 0.04 M_jup, 0.95 ± 0.03 R_jup gas giant on a circular 3.07 day orbit around a star with a spectral type between K7V and M0V. This system produces one of the largest transit depths so far reported, making it a worthwhile target for transmission spectroscopy. We find a large discrepancy between the vsini inferred from stellar line broadening and the observed amplitude of the Rossiter-McLaughlin effect. This can be understood either by an orbital plane nearly perpendicular to the stellar spin or by an additional, unaccounted for source of broadening.

Original language	English
Article number	A80
Number of pages	5
Journal	Astronomy & Astrophysics
Volume	551
Early online date	26 Feb 2013
DOIs	https://doi.org/10.1051/0004-6361/201220900
Publication status	Published - Mar 2013

Keywords

Planetary systems
Binaries: eclipsing
Stars: individual: WASP-80
Techniques: radial velocities
Techniques: photometric
Techniques: spectroscopic

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10.1051/0004-6361/201220900

Smith_2013_AA_WASP80b
© ESO, 2013. Reproduced with permission from Astronomy & Astrophysics, © ESO
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Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014
Horne, K. D. (PI)
Science & Technology Facilities Council
1/10/11 → 31/03/12
Project: Standard
Wide Area Search for Planets: Project support for the Wide Area Search for Planets
Cameron, A. C. (PI)
Science & Technology Facilities Council
1/08/08 → 31/07/11
Project: Standard

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Triaud, A. H. M. J., Anderson, D. R., Collier Cameron, A., Doyle, A. P., Fumel, A., Gillon, M., Hellier, C., Jehin, E., Lendl, M., Lovis, C., Maxted, P. F. L., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Smith, A. M. S., Udry, S., West, R. G., & Wheatley, P. J. (2013). WASP-80b: a gas giant transiting a cool dwarf. Astronomy & Astrophysics, 551, Article A80. https://doi.org/10.1051/0004-6361/201220900

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title = "WASP-80b: a gas giant transiting a cool dwarf",

abstract = "We report the discovery of a planet transiting the star WASP-80 (1SWASP J201240.26-020838.2; 2MASS J20124017-0208391; TYC 5165-481-1; BPM 80815; V = 11.9, K = 8.4). Our analysis shows this is a 0.55 ± 0.04 Mjup, 0.95 ± 0.03 Rjup gas giant on a circular 3.07 day orbit around a star with a spectral type between K7V and M0V. This system produces one of the largest transit depths so far reported, making it a worthwhile target for transmission spectroscopy. We find a large discrepancy between the vsini inferred from stellar line broadening and the observed amplitude of the Rossiter-McLaughlin effect. This can be understood either by an orbital plane nearly perpendicular to the stellar spin or by an additional, unaccounted for source of broadening.",

keywords = "Planetary systems, Binaries: eclipsing, Stars: individual: WASP-80, Techniques: radial velocities, Techniques: photometric , Techniques: spectroscopic",

author = "A.H.M.J. Triaud and D.R. Anderson and {Collier Cameron}, A. and A.P. Doyle and A. Fumel and M. Gillon and C. Hellier and E. Jehin and M. Lendl and C. Lovis and P.F.L. Maxted and F. Pepe and D. Pollacco and D. Queloz and D. S{\'e}gransan and B. Smalley and A.M.S. Smith and S. Udry and R.G. West and P.J. Wheatley",

year = "2013",

month = mar,

doi = "10.1051/0004-6361/201220900",

language = "English",

volume = "551",

journal = "Astronomy & Astrophysics",

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Triaud, AHMJ, Anderson, DR, Collier Cameron, A, Doyle, AP, Fumel, A, Gillon, M, Hellier, C, Jehin, E, Lendl, M, Lovis, C, Maxted, PFL, Pepe, F, Pollacco, D, Queloz, D, Ségransan, D, Smalley, B, Smith, AMS, Udry, S, West, RG & Wheatley, PJ 2013, 'WASP-80b: a gas giant transiting a cool dwarf', Astronomy & Astrophysics, vol. 551, A80. https://doi.org/10.1051/0004-6361/201220900

TY - JOUR

T1 - WASP-80b

T2 - a gas giant transiting a cool dwarf

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

AU - Anderson, D.R.

AU - Collier Cameron, A.

AU - Doyle, A.P.

AU - Fumel, A.

AU - Gillon, M.

AU - Hellier, C.

AU - Jehin, E.

AU - Lendl, M.

AU - Lovis, C.

AU - Maxted, P.F.L.

AU - Pepe, F.

AU - Pollacco, D.

AU - Queloz, D.

AU - Ségransan, D.

AU - Smalley, B.

AU - Smith, A.M.S.

AU - Udry, S.

AU - West, R.G.

AU - Wheatley, P.J.

PY - 2013/3

Y1 - 2013/3

N2 - We report the discovery of a planet transiting the star WASP-80 (1SWASP J201240.26-020838.2; 2MASS J20124017-0208391; TYC 5165-481-1; BPM 80815; V = 11.9, K = 8.4). Our analysis shows this is a 0.55 ± 0.04 Mjup, 0.95 ± 0.03 Rjup gas giant on a circular 3.07 day orbit around a star with a spectral type between K7V and M0V. This system produces one of the largest transit depths so far reported, making it a worthwhile target for transmission spectroscopy. We find a large discrepancy between the vsini inferred from stellar line broadening and the observed amplitude of the Rossiter-McLaughlin effect. This can be understood either by an orbital plane nearly perpendicular to the stellar spin or by an additional, unaccounted for source of broadening.

AB - We report the discovery of a planet transiting the star WASP-80 (1SWASP J201240.26-020838.2; 2MASS J20124017-0208391; TYC 5165-481-1; BPM 80815; V = 11.9, K = 8.4). Our analysis shows this is a 0.55 ± 0.04 Mjup, 0.95 ± 0.03 Rjup gas giant on a circular 3.07 day orbit around a star with a spectral type between K7V and M0V. This system produces one of the largest transit depths so far reported, making it a worthwhile target for transmission spectroscopy. We find a large discrepancy between the vsini inferred from stellar line broadening and the observed amplitude of the Rossiter-McLaughlin effect. This can be understood either by an orbital plane nearly perpendicular to the stellar spin or by an additional, unaccounted for source of broadening.

KW - Planetary systems

KW - Binaries: eclipsing

KW - Stars: individual: WASP-80

KW - Techniques: radial velocities

KW - Techniques: photometric

KW - Techniques: spectroscopic

U2 - 10.1051/0004-6361/201220900

DO - 10.1051/0004-6361/201220900

M3 - Article

AN - SCOPUS:84874450336

SN - 0004-6361

VL - 551

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - A80

ER -

WASP-80b: a gas giant transiting a cool dwarf

Abstract

Keywords

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Projects

Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

Wide Area Search for Planets: Project support for the Wide Area Search for Planets

Cite this