My principal research interests lie in:
(1) Cosmology, especially the statistical analysis of galaxy redshift and peculiar velocity surveys, calibration of the extragalactic distance scale and Bayesian and robust statistical methods for estimating cosmological parameters;
(2) Gravitational wave astronomy, particularly compact
binary coalescences and their potential use as cosmological distance indicators, and broader aspects of multi-messenger astronomy that will become possible with gravitational waves.
(3) A wave-mechanical approach to the numerical modelling of large scale structure formation and evolution;
(4) Applications of gravitational microlensing, including diagnosis of planetary and stellar atmospheres, circumstellar envelopes and stellar winds, and the impact
of Shapiro delay on the absolute calibration of pulsar timing.