Fields of Research

Galactic astronomy
Stellar astronomy and planetary systems
Mathematical physics
Cosmology and extragalactic astronomy
Planetary science (excl. solar system and planetary geology)
Accelerators
Astronomical instrumentation

Research Objectives

Expanding knowledge in the physical sciences
Expanding knowledge in the mathematical sciences
Scientific instruments
Climate variability (excl. social impacts)

Career Best Publications

Research Publications

A brown dwarf orbiting an M-dwarf: MOA 2009-BLG-411L; Astronomy and Astrophysics
A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing; Astronomy and Astrophysics
A complete set of solutions for caustic crossing binary microlensing events; The Astrophysical Journal
A Jovian analogue orbiting a white dwarf star; Nature
A new type of ambiguity in the planet and binary interpretations of central perturbations of high-magnification gravitational microlensing events; The Astrophysical Journal
A Wide-orbit Exoplanet OGLE-2012-BLG-0838Lb; Astronomical Journal
Accurate mass measurements for planetary microlensing events using high angular resolution observations; Universe
Adaptive optics imaging can break the central caustic cusp approach degeneracy in high-magnification microlensing events; The Astronomical Journal
An analysis of binary microlensing event OGLE-2015-BLG-0060; Monthly Notices of the Royal Astronomical Society
An Isolated Stellar-mass Black Hole Detected through Astrometric Microlensing; Astrophysical Journal
ARES I: WASP-76 b, A Tale of Two HST Spectra*; The Astronomical Journal
ARES IV: probing the atmospheres of the two warm small planets HD 106315c and HD 3167c with the HST/WFC3 camera; Astronomical Journal
ARES. II. Characterizing the Hot Jupiters WASP-127 b, WASP-79 b, and WASP-62b with the Hubble Space Telescope; Astronomical Journal
ARES. III. Unveiling the Two Faces of KELT-7 b with HST WFC3; Astronomical Journal
ARES. V. No Evidence for Molecular Absorption in the HST WFC3 Spectrum of GJ 1132 b; The Astronomical Journal
Characterizing lenses and lensed stars of high-magnification single-lens gravitational microlensing events with lenses passing over source starts; The Astrophysical Journal
Combined analysis of the binary lens caustic-crossing event MACHO 98-SMC-1; The Astrophysical Journal
Combining Spitzer parallax and Keck II adaptive optics imaging to measure the mass of a solar-like star orbited by a cold gaseous planet discovered by microlensing; Astronomical Journal
Confirmation of the stellar binary microlensing event, Macho 97-BLG-28; Astrophysical Journal
Detection of rotation in a binary microlens: planet photometry of MACHO 97-BLG-41; The Astrophysical Journal
Difference imaging photometry of blended gravitational microlensing events with a numerical kernel; Monthly Notices of the Royal Astronomical Society
Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing; Nature
First assessment of the binary lens OGLE-2015-BLG-0232; Astrophysical Journal
Hα equivalent width variations across the face of a microlensed K giant in the galactic bulge; The Astrophysical Journal
High-Precision Limb-Darkening Measurement of a K3 Giant Using Microlensing; The Astrophysical Journal
Keck observations confirm a super-Jupiter planet orbiting M dwarf OGLE-2005-BLG-071L; Astronomical Journal
Kojima-1Lb is a mildly cold Neptune around the brightest microlensing host star; Astronomical Journal
Limb darkening of a K giant in the galactic bulge: PLANET photometry of MACHO 97-BLG-28; The Astrophysical Journal
Limits on stellar and planetary companions in microlensing event OGLE-1998-BUL-14; The Astrophysical Journal
Limits on the abundance of galactic planets from 5 years of PLANET observations; The Astrophysical Journal
MagAO Observations of the binary microlens OGLE-2014-BLG-1050 prefer the higher-mass solution; Astronomical Journal
Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050; Astronomy and Astrophysics
Masses and orbital constraints for the OGLE-2006-BLG-109Lb,c Jupiter/Saturn analog Planetary System; Astrophysical Journal
Microlensing discovery of a population of very tight, very low mass binary brown dwarfs; The Astrophysical Journal
MOA 2010-BLG-477Lb: Constraining the mass of a microlensing planet from microlensing parallax, orbital motion, and detection of blended light; The Astrophysical Journal
MOA-2007-BLG-400 A super-Jupiter-mass planet orbiting a galactic bulge K-dwarf revealed by Keck adaptive optics imaging; The Astronomical Journal
MOA-2009-BLG-319Lb: A sub-saturn planet inside the predicted mass desert; Astronomical Journal
MOA-2009-BLG-387Lb: a massive planet orbiting an M dwarf; Astronomy and Astrophysics: A European Journal
MOA-2011-BLG-262Lb: a sub-earth-mass moon orbiting a gas giant primary or a high velocity planetary system in the galactic bulge; The Astrophysical Journal
MOA-2016-BLG-227Lb: a massive planet characterized by combining light-curve analysis and Keck AO imaging; The Astronomical Journal
OGLE 2004-BLG-254: a K3III Galactic bulge giant spatially resolved by a single microlens; Astronomy & Astrophysics
OGLE 2008-BLG-290: an accurate measurement of the limb darkening of a galactic bulge K Giant spatially resolved by microlensing; Astronomy and Astrophysics
OGLE-2005-BLG-071Lb, the most massive M dwarf planetary companion?; The Astrophysical Journal
OGLE-2008-BLG-510: First automated real-time detection of a weak microlensing anomaly - brown dwarf or stellar binary?; Monthly Notices of the Royal Astronomical Society
OGLE-2017-BLG-1434Lb: Confirmation of a cold super-Earth using Keck adaptive optics; The Astronomical Journal
One or more bound planets per Milky Way star from microlensing observations; Nature
PLANET observations of microlensing event OGLE-1999-BUL-23: limb-darkening measurement of the source star; The Astrophysical Journal
Probing the atmosphere of the bulge G5III star OGLE-2002-BUL-069 by analysis of microlensed Há line; Astronomy & Astrophysics
Reconciling the predictions of microlensing analysis with radial velocity measurements for OGLE-2011-BLG-0417; Astrophysical Journal
Red noise versus planetary interpretations in the microlensing event OGLE-2013-BLG-446; Astrophysical Journal
Revisiting MOA 2013-BLG-220L: a solar-type star with a cold super-Jupiter companion; Astronomical Journal
Revisiting the microlensing event Ogle 2012-Blg-0026: a solar mass star with two cold giant planets; Astrophysical Journal
The first circumbinary planet found by microlensing: OGLE-2007-BLG-349L(AB)c; Astronomical Journal
The first planetary microlensing event with two microlensed source stars; Astronomical Journal
The PLANET Collaboration: Current Status and Future Prospects; Planets Beyond the Solar System and the Next Generation of Space Missions
The PLANET Collaboration: Current Status and Future Prospects; Planets Beyond the Solar System and the Next Generation of Space Missions
The PLANET Collaboration: Probing Lensing Anomalies; Variable Stars and the Astrophysical Returns of the Microlensing Surveys
The PLANET Collaboration: Probing Lensing Anomalies; Variable Stars and the Astrophysical Returns of the Microlensing Surveys
The PLANET microlensing follow-up network: results and prospects for the detection of extra-solar planets; Planetary and Space Science
The relative lens-source proper motion in MACHO 98-SMC-1; The Astrophysical Journal
WFIRST Exoplanet Mass-measurement Method Finds a Planetary Mass of 39+-8 M_⊕ for OGLE-2012-BLG-0950Lb; The Astronomical Journal

Research Projects

Hidden Earths and Distant Suns: A New Optical Astronomy Observatory in Tasmania; Australian Research Council (ARC)
The Occurrence of Cold Planets in the Galaxy; Australian Research Council (ARC)

Research Candidate Supervision