WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b

C. Hellier; D. R. Anderson; K. Barkaoui; Z. Benkhaldoun; F. Bouchy; A. Burdanov; A. Collier Cameron; L. Delrez; M. Gillon; E. Jehin; L. D. Nielsen; P. F. L. Maxted; F. Pepe; D. Pollacco; F. J. Pozuelos; D. Queloz; D. Ségransan; B. Smalley; A. H. M. J. Triaud; O. D. Turner; S. Udry; R. G. West

doi:10.1093/mnras/stz2713

WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b

C. Hellier, D. R. Anderson, K. Barkaoui, Z. Benkhaldoun, F. Bouchy, A. Burdanov, A. Collier Cameron, L. Delrez, M. Gillon, E. Jehin, L. D. Nielsen, P. F. L. Maxted, F. Pepe, D. Pollacco, F. J. Pozuelos, D. Queloz, D. Ségransan, B. Smalley, A. H. M. J. Triaud, O. D. TurnerS. Udry, R. G. West

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Abstract

We report on four new transiting hot Jupiters discovered by the WASP-South survey. WASP-178b transits a V = 9.9, A1V star with T_eff = 9350 ± 150 K, the second-hottest transit host known. It has a highly bloated radius of 1.81 ± 0.09 R_Jup, in line with the known correlation between high irradiation and large size. With an estimated temperature of 2470 ± 60 K, the planet is one of the best targets for studying ultrahot Jupiters that is visible from the Southern hemisphere. The three host stars WASP-184, WASP-185, and WASP-192 are all post-main-sequence G0 stars of ages 4–8 Gyr. The larger stellar radii (1.3–1.7 M⊙) mean that the transits are relatively shallow (0.7–0.9 per cent) even though the planets have moderately inflated radii of 1.2–1.3 R_Jup. WASP-185b has an eccentric orbit (e = 0.24) and a relatively long orbital period of 9.4 d. A star that is 4.6 arcsec from WASP-185 and 4.4 mag fainter might be physically associated.

Original language	English
Pages (from-to)	1479–1487
Number of pages	9
Journal	Monthly Notices of the Royal Astronomical Society
Volume	490
Issue number	1
Early online date	30 Sept 2019
DOIs	https://doi.org/10.1093/mnras/stz2713
Publication status	Published - Nov 2019

Keywords

Stars: individual: WASP-178
Stars: individual: WASP-184
Stars: individual: WASP-185
Stars: individual: WASP-192
Planetary systems

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Hellier-2019-Wasp-South-hot-Jupiters-MNRAS-1479
Copyright © 2019 the Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/stz2713
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Hellier, C., Anderson, D. R., Barkaoui, K., Benkhaldoun, Z., Bouchy, F., Burdanov, A., Cameron, A. C., Delrez, L., Gillon, M., Jehin, E., Nielsen, L. D., Maxted, P. F. L., Pepe, F., Pollacco, D., Pozuelos, F. J., Queloz, D., Ségransan, D., Smalley, B., Triaud, A. H. M. J., ... West, R. G. (2019). WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b. Monthly Notices of the Royal Astronomical Society, 490(1), 1479–1487. https://doi.org/10.1093/mnras/stz2713

@article{764d5db6923244d395c22a896db84131,

title = "WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b \& WASP-192b",

abstract = "We report on four new transiting hot Jupiters discovered by the WASP-South survey. WASP-178b transits a V = 9.9, A1V star with Teff = 9350 ± 150 K, the second-hottest transit host known. It has a highly bloated radius of 1.81 ± 0.09 RJup, in line with the known correlation between high irradiation and large size. With an estimated temperature of 2470 ± 60 K, the planet is one of the best targets for studying ultrahot Jupiters that is visible from the Southern hemisphere. The three host stars WASP-184, WASP-185, and WASP-192 are all post-main-sequence G0 stars of ages 4–8 Gyr. The larger stellar radii (1.3–1.7 M⊙) mean that the transits are relatively shallow (0.7–0.9 per cent) even though the planets have moderately inflated radii of 1.2–1.3 RJup. WASP-185b has an eccentric orbit (e = 0.24) and a relatively long orbital period of 9.4 d. A star that is 4.6 arcsec from WASP-185 and 4.4 mag fainter might be physically associated.",

keywords = "Stars: individual: WASP-178, Stars: individual: WASP-184, Stars: individual: WASP-185, Stars: individual: WASP-192, Planetary systems",

author = "C. Hellier and Anderson, \{D. R.\} and K. Barkaoui and Z. Benkhaldoun and F. Bouchy and A. Burdanov and Cameron, \{A. Collier\} and L. Delrez and M. Gillon and E. Jehin and Nielsen, \{L. D.\} and Maxted, \{P. F. L.\} and F. Pepe and D. Pollacco and Pozuelos, \{F. J.\} and D. Queloz and D. S{\'e}gransan and B. Smalley and Triaud, \{A. H. M. J.\} and Turner, \{O. D.\} and S. Udry and West, \{R. G.\}",

year = "2019",

month = nov,

doi = "10.1093/mnras/stz2713",

language = "English",

volume = "490",

pages = "1479–1487",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

Hellier, C, Anderson, DR, Barkaoui, K, Benkhaldoun, Z, Bouchy, F, Burdanov, A, Cameron, AC, Delrez, L, Gillon, M, Jehin, E, Nielsen, LD, Maxted, PFL, Pepe, F, Pollacco, D, Pozuelos, FJ, Queloz, D, Ségransan, D, Smalley, B, Triaud, AHMJ, Turner, OD, Udry, S & West, RG 2019, 'WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b', Monthly Notices of the Royal Astronomical Society, vol. 490, no. 1, pp. 1479–1487. https://doi.org/10.1093/mnras/stz2713

TY - JOUR

T1 - WASP-South hot Jupiters

T2 - WASP-178b, WASP-184b, WASP-185b & WASP-192b

AU - Hellier, C.

AU - Anderson, D. R.

AU - Barkaoui, K.

AU - Benkhaldoun, Z.

AU - Bouchy, F.

AU - Burdanov, A.

AU - Cameron, A. Collier

AU - Delrez, L.

AU - Gillon, M.

AU - Jehin, E.

AU - Nielsen, L. D.

AU - Maxted, P. F. L.

AU - Pepe, F.

AU - Pollacco, D.

AU - Pozuelos, F. J.

AU - Queloz, D.

AU - Ségransan, D.

AU - Smalley, B.

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

AU - Turner, O. D.

AU - Udry, S.

AU - West, R. G.

PY - 2019/11

Y1 - 2019/11

N2 - We report on four new transiting hot Jupiters discovered by the WASP-South survey. WASP-178b transits a V = 9.9, A1V star with Teff = 9350 ± 150 K, the second-hottest transit host known. It has a highly bloated radius of 1.81 ± 0.09 RJup, in line with the known correlation between high irradiation and large size. With an estimated temperature of 2470 ± 60 K, the planet is one of the best targets for studying ultrahot Jupiters that is visible from the Southern hemisphere. The three host stars WASP-184, WASP-185, and WASP-192 are all post-main-sequence G0 stars of ages 4–8 Gyr. The larger stellar radii (1.3–1.7 M⊙) mean that the transits are relatively shallow (0.7–0.9 per cent) even though the planets have moderately inflated radii of 1.2–1.3 RJup. WASP-185b has an eccentric orbit (e = 0.24) and a relatively long orbital period of 9.4 d. A star that is 4.6 arcsec from WASP-185 and 4.4 mag fainter might be physically associated.

AB - We report on four new transiting hot Jupiters discovered by the WASP-South survey. WASP-178b transits a V = 9.9, A1V star with Teff = 9350 ± 150 K, the second-hottest transit host known. It has a highly bloated radius of 1.81 ± 0.09 RJup, in line with the known correlation between high irradiation and large size. With an estimated temperature of 2470 ± 60 K, the planet is one of the best targets for studying ultrahot Jupiters that is visible from the Southern hemisphere. The three host stars WASP-184, WASP-185, and WASP-192 are all post-main-sequence G0 stars of ages 4–8 Gyr. The larger stellar radii (1.3–1.7 M⊙) mean that the transits are relatively shallow (0.7–0.9 per cent) even though the planets have moderately inflated radii of 1.2–1.3 RJup. WASP-185b has an eccentric orbit (e = 0.24) and a relatively long orbital period of 9.4 d. A star that is 4.6 arcsec from WASP-185 and 4.4 mag fainter might be physically associated.

KW - Stars: individual: WASP-178

KW - Stars: individual: WASP-184

KW - Stars: individual: WASP-185

KW - Stars: individual: WASP-192

KW - Planetary systems

UR - https://www.scopus.com/pages/publications/85075254190

U2 - 10.1093/mnras/stz2713

DO - 10.1093/mnras/stz2713

M3 - Article

SN - 0035-8711

VL - 490

SP - 1479

EP - 1487

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b

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