- Formation of galaxies and their central supermassive black holes
- Intergalactic medium and QSO absorption lines
- Large Scale Structure
- Observational Cosmology
Other Professional Activities
- PI of the ERC Advanced Grant "The Emergence of Structure during the Epoch of Reionization"
- Project Scientist for the phase A study of the ultra-stable high-resolution spectrograph CODEX for the E-ELT
- Member of the Science Team of E-ELT HIRES
- Coordinator of the former EC Research and training network "The Physics of the Intergalactic Medium"