The NGC 404 Nucleus: Star Cluster and Possible Intermediate Mass Black Hole
(2010)
Testing Mass Determinations of Supermassive Black Holes via Stellar Kinematics
(2010)
Lensing of space time around a black hole. At Oxford we study black holes observationally and theoretically on all size and time scales - it is some of our core work.
Professor of Astrophysics