Hellier, Coel Anderson, D R Barkaoui, K Benkhaldoun, Z Bouchy, F Burdanov, A Cameron, A Collier 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 Turner, O D Udry, S West, R G 2019 <jats:title>ABSTRACT</jats:title> <jats:p>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.</jats:p> application/pdf https://sonar.ch/global/documents/252795 eng info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stz2713 info:eu-repo/semantics/altIdentifier/issn/0035-8711 info:eu-repo/semantics/openAccess Monthly Notices of the Royal Astronomical Society. - Oxford University Press (OUP). - 2019, vol. 490, no. 1, p. 1479-1487 Space and Planetary Science Astronomy and Astrophysics WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b, and WASP-192b http://purl.org/coar/resource_type/c_6501