132 citations · 1.6k across the 61 of their papers we have counts for
9 papers · 1 filter
A lower radius and mass for the transiting extrasolar planet HAT-P-8b
L. Mancini, J. Southworth, S. Ciceri +10
Context. The extrasolar planet HAT-P-8 b was thought to be one of the more inflated transiting hot Jupiters. Aims. By using new and existing photometric data, we computed precise e…
An extremely high photometric precision in ground-based observations of two transits in the WASP-50 planetary system
Jeremy Tregloan-Reed, John Southworth
We present photometric observations of two transits in the WASP-50 planetary system, obtained using the ESO New Technology Telescope and the defocussed-photometry technique. The rm…
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…
Microlensig Binaries with Candidate Brown Dwarf Companions
I. -G. Shin, C. Han, A. Gould +152
Brown dwarfs are important objects because they may provide a missing link between stars and planets, two populations that have dramatically different formation history. In this pa…
High-precision photometry by telescope defocussing. IV. Confirmation of the huge radius of WASP-17b
John Southworth, M Dominik, X-S Fang +29
We present photometric observations of four transits in the WASP-17 planetary system, obtained using telescope defocussing techniques and with scatters reaching 0.5 mmag per point.…
The Transiting System GJ1214: High-Precision Defocused Transit Observations and a Search for Evidence of Transit Timing Variation
K. B. W. Harpsøe, S. Hardis, T. C. Hinse +37
Aims: We present 11 high-precision photometric transit observations of the transiting super-Earth planet GJ1214b. Combining these data with observations from other authors, we inve…
A New Type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-Magnification Gravitational Microlensing Events
J. -Y. Choi, I. -G. Shin, C. Han +118
High-magnification microlensing events provide an important channel to detect planets. Perturbations near the peak of a high-magnification event can be produced either by a planet…
Characterizing Low-Mass Binaries From Observation of Long Time-scale Caustic-crossing Gravitational Microlensing Events
I. -G. Shin, C. Han, J. -Y. Choi +119
Despite astrophysical importance of binary star systems, detections are limited to those located in small ranges of separations, distances, and masses and thus it is necessary to u…
Physical properties and radius variations in the HAT-P-5 planetary system from simultaneous four-colour photometry
John Southworth, L. Mancini, P. F. L. Maxted +5
The radii of giant planets, as measured from transit observations, may vary with wavelength due to Rayleigh scattering or variations in opacity. Such an effect is predicted to be l…