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LRG-BEASTS: Detection of sodium and evidence for water absorption in the hot Saturn HAT-P-44b
Alastair B. Claringbold, Peter J. Wheatley, James Kirk +5
We present the low-resolution optical transmission spectrum of the inflated hot Saturn HAT-P-44b. The planet is a close sibling in radius (1.24 ), temperature (11…
ACCESS & LRG-BEASTS: a precise new optical transmission spectrum of the ultrahot Jupiter WASP-103b
James Kirk, Ben Rackham, Ryan MacDonald +17
We present a new ground-based optical transmission spectrum of the ultrahot Jupiter WASP-103b (K). Our transmission spectrum is the result of combining five new tran…
LRG-BEASTS: Ground-based Detection of Sodium and a Steep Optical Slope in the Atmosphere of the Highly Inflated Hot-Saturn WASP-21b
L. Alderson, J. Kirk, M. López-Morales +7
We present the optical transmission spectrum of the highly inflated Saturn-mass exoplanet WASP-21b, using three transits obtained with the ACAM instrument on the William Herschel T…
LRG-BEASTS: transmission spectroscopy and retrieval analysis of the highly-inflated Saturn-mass planet WASP-39b
James Kirk, Mercedes Lopez-Morales, Peter J. Wheatley +5
We present a ground-based transmission spectrum and comprehensive retrieval analysis of the highly inflated Saturn-mass planet WASP-39b. We obtained low-resolution spectra ($R \app…
LRG-BEASTS III: Ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80
J. Kirk, P. J. Wheatley, T. Louden +4
We have performed ground-based transmission spectroscopy of the hot Jupiter orbiting the cool dwarf WASP-80 using the ACAM instrument on the William Herschel Telescope (WHT) as par…
A precise optical transmission spectrum of the inflated exoplanet WASP-52b
Tom Louden, Peter J. Wheatley, Patrick G. J. Irwin +2
We have measured a precise optical transmission spectrum for WASP-52b, a highly inflated hot Jupiter with an equilibrium temperature of 1300 K. Two transits of the planet were obse…
Rayleigh scattering in the transmission spectrum of HAT-P-18b
J. Kirk, P. J. Wheatley, T. Louden +5
We have performed ground-based transmission spectroscopy of the hot Jupiter HAT-P-18b using the ACAM instrument on the William Herschel Telescope (WHT). Differential spectroscopy o…
WASP-92b, WASP-93b and WASP-118b: Three new transiting close-in giant planets
K. L. Hay, A. Collier-Cameron, A. P. Doyle +36
We present the discovery of three new transiting giant planets, first detected with the WASP telescopes, and establish their planetary nature with follow up spectroscopy and ground…
Defocussed Transmission Spectroscopy: A potential detection of sodium in the atmosphere of WASP-12b
J. R. Burton, C. A. Watson, P. Rodriguez-Gil +4
We report on a pilot study of a novel observing technique, defocussed transmission spectroscopy, and its application to the study of exoplanet atmospheres using ground-based platfo…
A Window on Exoplanet Dynamical Histories: Rossiter-McLaughlin Observations of WASP-13b and WASP-32b
R. D. Brothwell, C. A. Watson, G. Hebrard +42
We present Rossiter-McLaughlin observations of WASP-13b and WASP-32b and determine the sky-projected angle between the normal of the planetary orbit and the stellar rotation axis (…
Three sub-Jupiter-mass planets: WASP-69b & WASP-84b transit active K dwarfs and WASP-70Ab transits the evolved primary of a G4+K3 binary
D. R. Anderson, A. Collier Cameron, L. Delrez +21
We report the discovery of the transiting exoplanets WASP-69b, WASP-70Ab and WASP-84b, each of which orbits a bright star (. WASP-69b is a bloated Saturn-mass planet (0.2…
The PLATO 2.0 Mission
H. Rauer, C. Catala, C. Aerts +159
PLATO 2.0 has recently been selected for ESA's M3 launch opportunity (2022/24). Providing accurate key planet parameters (radius, mass, density and age) in statistical numbers, it…
Discovery of WASP-65b and WASP-75b: Two Hot Jupiters Without Highly Inflated Radii
Y. Gómez Maqueo Chew, F. Faedi, D. Pollacco +38
We report the discovery of two transiting hot Jupiters, WASP-65b (M_pl = 1.55 +/- 0.16 M_J; R_pl = 1.11 +/- 0.06 R_J), and WASP-75b (M_pl = 1.07 +/- 0.05 M_J; R_pl = 1.27 +/- 0.05…
Lucky Imaging of transiting planet host stars with LuckyCam
F. Faedi, T. Staley, Y. Gomez Maqueo Chew +7
We obtained high-resolution, high-contrast optical imaging in the SDSS band with the LuckyCam camera mounted on the 2.56m Nordic Optical Telescope, to search for faint stellar…
Transit timing variations in WASP-10b induced by stellar activity?
S. C. C. Barros, G. Boue, N. P. Gibson +5
The hot-Jupiter WASP-10b was reported by Maciejewski et al. (2011a,b) to show transit timing variations (TTV) with an amplitude of ~ 3.5 minutes. These authors proposed that the ob…
WASP-52b, WASP-58b, WASP-59b, and WASP-60b: four new transiting close-in giant planets
G. Hebrard, A. Collier Cameron, D. J. A. Brown +30
We present the discovery of four new transiting hot jupiters, detected mainly from SuperWASP-North and SOPHIE observations. These new planets, WASP-52b, WASP-58b, WASP-59b, and WAS…
WASP-54b, WASP-56b and WASP-57b: Three new sub-Jupiter mass planets from SuperWASP
F. Faedi, D. Pollacco, S. C. C. Barros +38
We present three newly discovered sub-Jupiter mass planets from the SuperWASP survey: WASP-54b is a heavily bloated planet of mass 0.636 \mj and radius 1.653$^{…
A transiting companion to the eclipsing binary KIC002856960
D. Armstrong, D. Pollacco, C. A. Watson +7
We present an early result from an automated search of Kepler eclipsing binary systems for circumbinary companions. An intriguing tertiary signal has been discovered in the short p…
High precision transit observations of the exoplanet WASP-13b with the RISE instrument
S. C. C. Barros, D. L. Pollacco, N. P. Gibson +3
WASP-13b is a sub-Jupiter mass exoplanet orbiting a G1V type star with a period of 4.35 days. The current uncertainty in its impact parameter (0 < b < 0.46) resulted in poorly defi…
A lower mass for the exoplanet WASP-21b
S. C. C. Barros, D. L. Pollacco, N. P. Gibson +6
We present high precision transit observations of the exoplanet WASP-21b, obtained with the RISE instrument mounted on 2.0m Liverpool Telescope. A transit model is fitted, coupled…
WASP-35b, WASP-48b and WASP-51b: Two new planets and an independent discovery of HAT-P-30b
B. Enoch, D. R. Anderson, S. C. C. Barros +36
We report the detection of WASP-35b, a planet transiting a metal-poor ([Fe/H] = -0.15) star in the Southern hemisphere, WASP-48b, an inflated planet which may have spun-up its slig…
WASP-39b: a highly inflated Saturn-mass planet orbiting a late G-type star
F. Faedi, S. C. C. Barros, D. R. Anderson +30
We present the discovery of WASP-39b, a highly inflated transiting Saturn-mass planet orbiting a late G-type dwarf star with a period of \,d, Transit Epoch T…
WASP-40b: independent discovery of the 0.6-Mjup transiting exoplanet HAT-P-27b
D. R. Anderson, S. C. C. Barros, I. Boisse +23
From WASP photometry and SOPHIE radial velocities we report the discovery of WASP-40b (HAT-P-27b), a 0.6 Mjup planet that transits its 12th magnitude host star every 3.04 days. The…
Thermal emission from WASP-33b, the hottest known planet
A. M. S. Smith, D. R. Anderson, I. Skillen +2
We report ground-based observations at 0.91 microns of the occultation of the hot Jupiter WASP-33b by its A5 host star. We measure the planet to be 0.109 +/- 0.030 per cent as brig…