Welcome! I am an associate professor of Astronomy and Physics at the University of Arizona. I am also a member of the Theoretical Astrophysics Program.

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.

I collaborate closely with the graduate and undergraduate students in my research group. Our theoretical studies are also closely related to observations made with current X-ray telescopes, such as the Rossi X-ray Timing Explorer, the Chandra X-ray Observatory, and XMM-Newton. I am also involved in deciding the specifications of future missions such as LOFT and NICER.

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.