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The discovery of WASP-134b, WASP-134c, WASP-137b, WASP-143b and WASP-146b: three hot Jupiters and a pair of warm Jupiters orbiting Solar-type stars
D. R. Anderson, F. Bouchy, D. J. A. Brown +22
We report the discovery by WASP of five planets orbiting moderately bright ( = 11.0-12.9) Solar-type stars. WASP-137b, WASP-143b and WASP-146b are typical hot Jupiters in orbits…
Spectral and orbital characterisation of the directly imaged giant planet HIP 65426 b
A. C. Cheetham, M. Samland, S. S. Brems +38
HIP 65426 b is a recently discovered exoplanet imaged during the course of the SPHERE-SHINE survey. Here we present new and observations of the planet from the NACO instr…
Machine-learning Approaches to Exoplanet Transit Detection and Candidate Validation in Wide-field Ground-based Surveys
N. Schanche, A. Collier Cameron, G. Hébrard +23
Since the start of the Wide Angle Search for Planets (WASP) program, more than 160 transiting exoplanets have been discovered in the WASP data. In the past, possible transit-like e…
WASP-190b: Tomographic discovery of a transiting hot Jupiter
L. Y. Temple, C. Hellier, Y. Almleaky +22
We report the discovery of WASP-190b, an exoplanet on a 5.37-day orbit around a mildly-evolved F6 IV-V star with V = 11.7, T_eff = 6400 100 K, M = 1.35 0.05 M_sun…
WASP-166b: a bloated super-Neptune transiting a V = 9 star
Coel Hellier, D. R. Anderson, A. H. M. J. Triaud +21
We report the discovery of WASP-166b, a super-Neptune planet with a mass of 0.1 Mjup (1.9 Mnep) and a bloated radius of 0.63 Rjup. It transits a V = 9.36, F9V star in a 5.44-d orbi…
Extrasolar planets and brown dwarfs around AF-type stars. X.The SOPHIE northern sample. Combining the SOPHIE and HARPS surveys to compute the close giant planet mass-period distribution around AF-type stars
S. Borgniet, A. -M. Lagrange, N. Meunier +31
The impact of the stellar mass on the giant planet properties is still to be fully understood. Main-Sequence (MS) stars more massive than the Sun remain relatively unexplored in ra…
A low-density hot Jupiter in a near-aligned, 4.5-day orbit around a = 10.8, F5V star
D. R. Anderson, F. Bouchy, D. J. A. Brown +18
We report the independent discovery and characterisation of a hot Jupiter in a 4.5-d, transiting orbit around the star TYC 7282-1298-1 ( = 10.8, F5V). The planet has been pursue…
WASP-189b: an ultra-hot Jupiter transiting the bright A star HR 5599 in a polar orbit
D. R. Anderson, L. Y. Temple, L. D. Nielsen +18
We report the discovery of WASP-189b: an ultra-hot Jupiter in a 2.72-d transiting orbit around the A star WASP-189 (HR 5599). We detected periodic dimmings in the star's…
NGTS-4b: A sub-Neptune Transiting in the Desert
Richard G. West, Edward Gillen, Daniel Bayliss +48
We report the discovery of NGTS-4b, a sub-Neptune-sized planet transiting a 13th magnitude K-dwarf in a 1.34d orbit. NGTS-4b has a mass M=M_E and radius R=…
The Origin of RNA Precursors on Exoplanets
Paul Brandon Rimmer, Jianfeng Xu, Samantha Thompson +3
Given that the macromolecular building blocks of life were likely produced photochemically in the presence of ultraviolet (UV) light, we identify some general constraints on which…
A 4.6-year period brown-dwarf companion interacting with the hot-Jupiter CoRoT-20 b
J. Rey, F. Bouchy, M. Stalport +18
We report the discovery of an additional substellar companion in the CoRoT-20 system based on six years of HARPS and SOPHIE radial velocity follow-up. CoRoT-20 c has a minimum mass…
WASP-128b: a transiting brown dwarf in the dynamical-tide regime
V. Hodžić, A. H. M. J. Triaud, D. R. Anderson +15
Massive companions in close orbits around G dwarfs are thought to undergo rapid orbital decay due to runaway tidal dissipation. We report here the discovery of WASP-128b, a brown d…
WASP-147b, 160Bb, 164b and 165b: two hot Saturns and two Jupiters, including two planets with metal-rich hosts
M. Lendl, D. R. Anderson, A. Bonfanti +20
We report the discovery of four transiting hot Jupiters, WASP-147, WASP-160B, WASP-164 and WASP-165 from the WASP survey. WASP-147b is a near Saturn-mass () objec…
Discovery of three new transiting hot Jupiters: WASP-161 b, WASP-163 b and WASP-170 b
K. Barkaoui, A. Burdanov, C. Hellier +28
We present the discovery by the WASP-South transit survey of three new transiting hot Jupiters, WASP-161 b, WASP-163 b and WASP-170 b. Follow-up radial velocities obtained with the…
The 0.8-4.5m broadband transmission spectra of TRAPPIST-1 planets
E. Ducrot, M. Sestovic, B. M. Morris +18
The TRAPPIST-1 planetary system represents an exceptional opportunity for the atmospheric characterization of temperate terrestrial exoplanets with the upcoming James Webb Space Te…
On the Feasibility of Intense Radial Velocity Surveys for Earth-twin Discoveries
Richard D. Hall, Samantha J. Thompson, Will Handley +1
This work assesses the potential capability of the next generation of high-precision Radial Velocity (RV) instruments for Earth-twin exoplanet detection. From the perspective of th…
Automatic vetting of planet candidates from ground based surveys: Machine learning with NGTS
David J. Armstrong, Maximilian N. Günther, James McCormac +22
State of the art exoplanet transit surveys are producing ever increasing quantities of data. To make the best use of this resource, in detecting interesting planetary systems or in…
Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system
Maximilian N. Günther, Didier Queloz, Edward Gillen +36
We present the discovery of NGTS-3Ab, a hot Jupiter found transiting the primary star of an unresolved binary system. We develop a joint analysis of multi-colour photometry, centro…
NGTS-2b: An inflated hot-Jupiter transiting a bright F-dwarf
Liam Raynard, Michael R. Goad, Edward Gillen +42
We report the discovery of NGTS-2b, an inflated hot-Jupiter transiting a bright F5V star (2MASS J14202949-3112074; = K), discovered as part of the Ne…
Investigating hot-Jupiter inflated radii with hierarchical Bayesian modelling
Marko Sestovic, Brice-Olivier Demory, Didier Queloz
As of today, hundreds of hot Jupiters have been found, yet the inflated radii of a large fraction of them remain unexplained. It is still unclear whether a single inflation mechani…
New transiting hot Jupiters discovered by WASP-South, Euler/CORALIE and TRAPPIST-South
Coel Hellier, D. R. Anderson, F. Bouchy +16
We report the discovery of eight hot-Jupiter exoplanets from the WASP-South transit survey. WASP-144b has a mass of 0.44 Mj, a radius of 0.85 Rj, and is in a 2.27-d orbit around a…
The HARPS search for southern extra-solar planets. XLIII. A compact system of four super-Earth planets orbiting HD 215152
J. -B. Delisle, D. Ségransan, X. Dumusque +22
We report the discovery of four super-Earth planets around HD 215152, with orbital periods of 5.76, 7.28, 10.86, and 25.2 d, and minimum masses of 1.8, 1.7, 2.8, and 2.9 M_Earth re…
The nature of the TRAPPIST-1 exoplanets
Simon L. Grimm, Brice-Olivier Demory, Michaël Gillon +23
Context. The TRAPPIST-1 system hosts seven Earth-sized, temperate exoplanets orbiting an ultra-cool dwarf star. As such, it represents a remarkable setting to study the formation a…
Discovery of WASP-174b: Doppler tomography of a near-grazing transit
L. Y. Temple, C. Hellier, Y. Almleaky +23
We report the discovery and tomographic detection of WASP-174b, a planet with a near-grazing transit on a 4.23-d orbit around a = 11.9, F6V star with [Fe/H] = 0.09 0.09.…