WASP-180Ab: Doppler tomography of an hot Jupiter orbiting the primary star in a visual binary

L. Y. Temple; C. Hellier; D. R. Anderson; K. Barkaoui; F. Bouchy; D. J. A. Brown; A. Burdanov; A. Collier Cameron; L. Delrez; E. Ducrot; D. Evans; M. Gillon; E. Jehin; M. Lendl; P. F. L. Maxted; J. McCormac; C. Murray; L. D. Nielsen; F. Pepe; D. Pollacco; D. Queloz; D. Ségransan; B. Smalley; S. Thompson; A. H. M. J. Triaud; O. D. Turner; S. Udry; R. G. West; B. Zouhair

doi:10.1093/mnras/stz2632

WASP-180Ab: Doppler tomography of an hot Jupiter orbiting the primary star in a visual binary

L. Y. Temple, C. Hellier, D. R. Anderson, K. Barkaoui, F. Bouchy, D. J. A. Brown, A. Burdanov, A. Collier Cameron, L. Delrez, E. Ducrot, D. Evans, M. Gillon, E. Jehin, M. Lendl, P. F. L. Maxted, J. McCormac, C. Murray, L. D. Nielsen, F. Pepe, D. PollaccoD. Queloz, D. Ségransan, B. Smalley, S. Thompson, A. H. M. J. Triaud, O. D. Turner, S. Udry, R. G. West, B. Zouhair

Physics and Astronomy

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Abstract

We report the discovery and characterisation of WASP-180Ab, a hot Jupiter confirmed by the detection of its Doppler shadow and by measuring its mass using radial velocities. We find the 0.9 ± 0.1 M_Jup, 1.24 ± 0.04 R_Jup planet to be in a misaligned, retrograde orbit around an F7 star with T_eff = 6500 K and a moderate rotation speed of vsin i_⋆ = 19.9 km s⁻¹. The host star is the primary of a V = 10.7 binary, where a secondary separated by ∼5″ (∼1200 AU) contributes ∼ 30% of the light. WASP-180Ab therefore adds to a small sample of transiting hot Jupiters known in binary systems. A 4.6-day modulation seen in the WASP data is likely to be the rotational modulation of the companion star, WASP-180B.

Original language	English
Journal	Monthly Notices of the Royal Astronomical Society
Early online date	20 Sept 2019
DOIs	https://doi.org/10.1093/mnras/stz2632
Publication status	E-pub ahead of print - 20 Sept 2019

Bibliographical note

8 pages, 6 figures, submitted to MNRAS

Keywords

astro-ph.EP
techniques: spectroscopic
techniques: photometric
planetary systems
stars: rotation

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10.1093/mnras/stz2632Licence: None: All rights reserved

Temple_et_al_WASP_180Ab_Doppler_tomography_of_an_hot_Jupiter_orbiting_the_primary_star_in_a_visual_binary_Monthly_Notices_of_the_Royal_Astronomical_Society_2019
Checked for eligibility: 16/10/2019 This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2019 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Accepted author manuscript, 597 KBLicence: None: All rights reserved

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Temple, L. Y., Hellier, C., Anderson, D. R., Barkaoui, K., Bouchy, F., Brown, D. J. A., Burdanov, A., Cameron, A. C., Delrez, L., Ducrot, E., Evans, D., Gillon, M., Jehin, E., Lendl, M., Maxted, P. F. L., McCormac, J., Murray, C., Nielsen, L. D., Pepe, F., ... Zouhair, B. (2019). WASP-180Ab: Doppler tomography of an hot Jupiter orbiting the primary star in a visual binary. Monthly Notices of the Royal Astronomical Society. Advance online publication. https://doi.org/10.1093/mnras/stz2632

@article{c9f2f6dac8a7464a8c169bed48e37d39,

title = "WASP-180Ab: Doppler tomography of an hot Jupiter orbiting the primary star in a visual binary",

abstract = "We report the discovery and characterisation of WASP-180Ab, a hot Jupiter confirmed by the detection of its Doppler shadow and by measuring its mass using radial velocities. We find the 0.9 ± 0.1 MJup, 1.24 ± 0.04 RJup planet to be in a misaligned, retrograde orbit around an F7 star with Teff = 6500 K and a moderate rotation speed of vsin i⋆ = 19.9 km s−1. The host star is the primary of a V = 10.7 binary, where a secondary separated by ∼5″ (∼1200 AU) contributes ∼ 30% of the light. WASP-180Ab therefore adds to a small sample of transiting hot Jupiters known in binary systems. A 4.6-day modulation seen in the WASP data is likely to be the rotational modulation of the companion star, WASP-180B.",

keywords = "astro-ph.EP, techniques: spectroscopic, techniques: photometric, planetary systems, stars: rotation",

author = "Temple, {L. Y.} and C. Hellier and Anderson, {D. R.} and K. Barkaoui and F. Bouchy and Brown, {D. J. A.} and A. Burdanov and Cameron, {A. Collier} and L. Delrez and E. Ducrot and D. Evans and M. Gillon and E. Jehin and M. Lendl and Maxted, {P. F. L.} and J. McCormac and C. Murray and Nielsen, {L. D.} and F. Pepe and D. Pollacco and D. Queloz and D. S{\'e}gransan and B. Smalley and S. Thompson and Triaud, {A. H. M. J.} and Turner, {O. D.} and S. Udry and West, {R. G.} and B. Zouhair",

note = "8 pages, 6 figures, submitted to MNRAS",

year = "2019",

month = sep,

day = "20",

doi = "10.1093/mnras/stz2632",

language = "English",

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

issn = "0035-8711",

publisher = "SIPRI/Oxford University Press",

}

Temple, LY, Hellier, C, Anderson, DR, Barkaoui, K, Bouchy, F, Brown, DJA, Burdanov, A, Cameron, AC, Delrez, L, Ducrot, E, Evans, D, Gillon, M, Jehin, E, Lendl, M, Maxted, PFL, McCormac, J, Murray, C, Nielsen, LD, Pepe, F, Pollacco, D, Queloz, D, Ségransan, D, Smalley, B, Thompson, S, Triaud, AHMJ, Turner, OD, Udry, S, West, RG & Zouhair, B 2019, 'WASP-180Ab: Doppler tomography of an hot Jupiter orbiting the primary star in a visual binary', Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stz2632

TY - JOUR

T1 - WASP-180Ab

T2 - Doppler tomography of an hot Jupiter orbiting the primary star in a visual binary

AU - Temple, L. Y.

AU - Hellier, C.

AU - Anderson, D. R.

AU - Barkaoui, K.

AU - Bouchy, F.

AU - Brown, D. J. A.

AU - Burdanov, A.

AU - Cameron, A. Collier

AU - Delrez, L.

AU - Ducrot, E.

AU - Evans, D.

AU - Gillon, M.

AU - Jehin, E.

AU - Lendl, M.

AU - Maxted, P. F. L.

AU - McCormac, J.

AU - Murray, C.

AU - Nielsen, L. D.

AU - Pepe, F.

AU - Pollacco, D.

AU - Queloz, D.

AU - Ségransan, D.

AU - Smalley, B.

AU - Thompson, S.

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

AU - Turner, O. D.

AU - Udry, S.

AU - West, R. G.

AU - Zouhair, B.

N1 - 8 pages, 6 figures, submitted to MNRAS

PY - 2019/9/20

Y1 - 2019/9/20

N2 - We report the discovery and characterisation of WASP-180Ab, a hot Jupiter confirmed by the detection of its Doppler shadow and by measuring its mass using radial velocities. We find the 0.9 ± 0.1 MJup, 1.24 ± 0.04 RJup planet to be in a misaligned, retrograde orbit around an F7 star with Teff = 6500 K and a moderate rotation speed of vsin i⋆ = 19.9 km s−1. The host star is the primary of a V = 10.7 binary, where a secondary separated by ∼5″ (∼1200 AU) contributes ∼ 30% of the light. WASP-180Ab therefore adds to a small sample of transiting hot Jupiters known in binary systems. A 4.6-day modulation seen in the WASP data is likely to be the rotational modulation of the companion star, WASP-180B.

AB - We report the discovery and characterisation of WASP-180Ab, a hot Jupiter confirmed by the detection of its Doppler shadow and by measuring its mass using radial velocities. We find the 0.9 ± 0.1 MJup, 1.24 ± 0.04 RJup planet to be in a misaligned, retrograde orbit around an F7 star with Teff = 6500 K and a moderate rotation speed of vsin i⋆ = 19.9 km s−1. The host star is the primary of a V = 10.7 binary, where a secondary separated by ∼5″ (∼1200 AU) contributes ∼ 30% of the light. WASP-180Ab therefore adds to a small sample of transiting hot Jupiters known in binary systems. A 4.6-day modulation seen in the WASP data is likely to be the rotational modulation of the companion star, WASP-180B.

KW - astro-ph.EP

KW - techniques: spectroscopic

KW - techniques: photometric

KW - planetary systems

KW - stars: rotation

U2 - 10.1093/mnras/stz2632

DO - 10.1093/mnras/stz2632

M3 - Article

SN - 0035-8711

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

WASP-180Ab: Doppler tomography of an hot Jupiter orbiting the primary star in a visual binary

Abstract

Bibliographical note

Keywords

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Cite this