My research focuses on testing the theory of general relativity in the strong-field regime and in cosmological settings. I also work on various aspects of the physics and astrophysics of neutron stars and black holes, as well as on the properties of magnetohydrodynamic turbulence. I routinely solve problems that involve hydrodynamics and photon transport in extreme physical conditions, using large-scale numerical simulations on CPU- and GPU-based clusters.
I collaborate closely with the graduate and undergraduate students in my research group. Our theoretical studies are closely related to observations made with current X-ray telescopes. I am a member of various science working groups assisting the design of future space missions such as LOFT and NICER. I am also involved in the Event Horizon Telescope, which aims to take the first pictures of the horizons of astrophysical black holes.
I regularly teach undergraduate and graduate classes in the Physics and Astronomy departments. I recently taught classes on Numerical Methods in Physics, on Theoretical Mechanics I and II , on Theoretical Astrophysics, and on General Relativity.