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WASP-167b/KELT-13b: joint discovery of a hot Jupiter transiting a rapidly rotating F1V star

Temple, L.Y.; Hellier, C.; Albrow, M.D.; Anderson, D.R.; Bayliss, D.; Beatty, T.G.; Bieryla, A.; Brown, D.J.A.; Cargile, P.A.; Collier Cameron, A.; Collins, K.A.; Colón, K.D.; Curtis, I.A.; D'Ago, G.; Delrez, L.; Eastman, J.; Gaudi, B.S.; Gillon, M.; Gregorio, J.; James, D.; Jehin, E.; Joner, M.D.; Kielkopf, J.F.; Kuhn, R.B.; Labadie-Bartz, J.; Latham, D.W.; Lendl, M.; Lund, M.B.; Malpas, A.L.; Maxted, P.F.L.; Myers, G.; Oberst, T.E.; Pepe, F.; Pepper, J.; Pollacco, D.; Queloz, D.; Rodriguez, J.E.; Ségransan, D.; Siverd, R.J.; Smalley, B.; Stassun, K.G.; Stevens, D.J.; Stockdale, C.; Tan, T.G.; Triaud, A.H.M.J.; Udry, S.; Villanueva Jr., S.; West, R.G.; Zhou, G.

WASP-167b/KELT-13b: joint discovery of a hot Jupiter transiting a rapidly rotating F1V star Thumbnail


Authors

L.Y. Temple

M.D. Albrow

D.R. Anderson

D. Bayliss

T.G. Beatty

A. Bieryla

D.J.A. Brown

P.A. Cargile

A. Collier Cameron

K.A. Collins

K.D. Colón

I.A. Curtis

G. D'Ago

L. Delrez

J. Eastman

B.S. Gaudi

M. Gillon

J. Gregorio

D. James

E. Jehin

M.D. Joner

J.F. Kielkopf

R.B. Kuhn

J. Labadie-Bartz

D.W. Latham

M. Lendl

M.B. Lund

A.L. Malpas

G. Myers

T.E. Oberst

F. Pepe

J. Pepper

D. Pollacco

D. Queloz

J.E. Rodriguez

D. Ségransan

R.J. Siverd

K.G. Stassun

D.J. Stevens

C. Stockdale

T.G. Tan

A.H.M.J. Triaud

S. Udry

S. Villanueva Jr.

R.G. West

G. Zhou



Abstract

We report the joint WASP/KELT discovery of WASP-167b/KELT-13b, a transiting hot Jupiter with a 2.02-d orbit around a V = 10.5, F1V star with [Fe/H] = 0.1 ± 0.1. The 1.5 RJup planet was confirmed by Doppler tomography of the stellar line profiles during transit. We place a limit of <8 MJup on its mass. The planet is in a retrograde orbit with a sky-projected spin–orbit angle of λ = −165° ± 5°. This is in agreement with the known tendency for orbits around hotter stars to be more likely to be misaligned. WASP-167/KELT-13 is one of the few systems where the stellar rotation period is less than the planetary orbital period. We find evidence of non-radial stellar pulsations in the host star, making it a δ-Scuti or γ-Dor variable. The similarity to WASP-33, a previously known hot-Jupiter host with pulsations, adds to the suggestion that close-in planets might be able to excite stellar pulsations.

Journal Article Type Article
Acceptance Date Jul 7, 2017
Online Publication Date Jul 13, 2017
Publication Date 2017-11
Publicly Available Date Mar 28, 2024
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 471
Issue 3
Pages 2743 - 2752
DOI https://doi.org/10.1093/mnras/stx1729
Keywords techniques, photometric, spectroscopic, planets and satellites, individual, stars, rotation
Publisher URL https://academic.oup.com/mnras/article/471/3/2743/3964539

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