- Spectroscopic and photometric analyses of stars, including a range of pulsating stars: Cepheid variables; R Coronae Borealis stars; RV Tauri stars; post-AGB stars; Extreme He and other rapidly pulsating stars.
- Abundances, particularly s-process elements, in late type stars.
- Astronomical instrumentation developments for Mt John Observatory and the Southern African Large Telescope: Adaptive Optics and SCIDAR measurements at Mt John; High Resolution Spectrograph (SALT HRS) design for SALT.
Astronomical instrumentation design and management
Communicating physical sciences to the public
Stellar pulsations, including both observations and numerical modelling
Chemical composition of stars
Correlations between motions of stars and their chemical abundance
Evolution of stars
Spectroscopy of stars
Synthesis of the chemical elements