WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b
arXiv:1907.11667 · doi:10.1093/mnras/stz2713
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 ultra-hot 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 Msun) mean that the transits are relatively shallow (0.7-0.9%) 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.
Version as Accepted for MNRAS (RV table added)
References in corpus (29)
- Gaia Data Release 2. Summary of the contents and survey properties
- The Gaia mission
- Helium in the eroding atmosphere of an exoplanet
- Efficient identification of exoplanetary transit candidates from SuperWASP light curves
- From thermal dissociation to condensation in the atmospheres of ultra hot Jupiters: WASP-121b in context
- Evidence for a systematic offset of -80 micro-arcseconds in the Gaia DR2 parallaxes
- WASP-1b and WASP-2b: Two new transiting exoplanets detected with SuperWASP and SOPHIE
- A giant planet undergoing extreme ultraviolet irradiation by its hot massive-star host
- Determining stellar macroturbulence using asteroseismic rotational velocities from Kepler
- Photoevaporation and High-Eccentricity Migration Created the Sub-Jovian Desert
- Global Climate and Atmospheric Composition of the Ultra-Hot Jupiter WASP-103b from HST and Spitzer Phase Curve Observations
- Long Term Evolution of Close Planets Including the Effects of Secular Interactions
- WASP-42 b and WASP-49 b: two new transiting sub-Jupiters
- Climate of an Ultra hot Jupiter: Spectroscopic phase curve of WASP-18b with HST/WFC3
- WASP-80b: a gas giant transiting a cool dwarf
- Water, High-Altitude Condensates, and Possible Methane Depletion in the Atmosphere of the Warm Super-Neptune WASP-107b
- KELT-20b: A giant planet with a period of P~ 3.5 days transiting the V~ 7.6 early A star HD 185603
- Investigating hot-Jupiter inflated radii with hierarchical Bayesian modelling
- HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Re-Inflation of Close-In Giant Planets
- WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus
- Bayesian mass and age estimates for transiting exoplanet host stars
- An Eccentric Massive Jupiter Orbiting a Sub-Giant on a 9.5 Day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images
- Discovery of three new transiting hot Jupiters: WASP-161 b, WASP-163 b and WASP-170 b
- KELT-16b: A highly irradiated, ultra-short period hot Jupiter nearing tidal disruption
- New transiting hot Jupiters discovered by WASP-South, Euler/CORALIE and TRAPPIST-South
- WASP-166b: a bloated super-Neptune transiting a V = 9 star
- WASP-189b: an ultra-hot Jupiter transiting the bright A star HR 5599 in a polar orbit
- Six newly-discovered hot Jupiters transiting F/G stars: WASP-87b, WASP-108b, WASP-109b, WASP-110b, WASP-111b & WASP-112b
- HATS-19b, HATS-20b, HATS-21b: Three Transiting Hot-Saturns Discovered by the HATSouth Survey
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- TESS Transit Timing of Hundreds of Hot Jupiters
- ExoClock Project III: 450 new exoplanet ephemerides from ground and space observations
- Precise radial velocities of giant stars XVI. Planet occurrence rates from the combined analysis of the Lick, EXPRESS, and PPPS giant star surveys
- TOI-481 b & TOI-892 b: Two long period hot Jupiters from the Transiting Exoplanet Survey Satellite
- HIP 33609 b: An Eccentric Brown Dwarf Transiting a V=7.3 Rapidly Rotating B-Star
- The atmospheric composition of the ultra-hot Jupiter WASP-178 b observed with ESPRESSO
- Measuring Tidal Dissipation in Giant Planets from Tidal Circularization
- An absolute mass, precise age, and hints of planetary winds for WASP-121 A and b from a JWST NIRSpec phase curve
- KELT-17: a chemically peculiar Am star and a hot-Jupiter planet
- Refractory and Volatile Species in the UV-to-IR Transmission Spectrum of Ultra-hot Jupiter WASP-178b with HST and JWST
- Precise Transit Photometry Using TESS: Updated Physical Properties for 28 Exoplanets Around Bright Stars
- NLTE atmospheric modelling of the ultra-hot Jupiter WASP-178b and comparison with UV and optical observations
- UV Absorption by Silicate Cloud Precursors in Ultra-hot Jupiter WASP-178b