Research
My group has pioneered the development of tests of Einstein’s General Theory of Relativity using observations of black holes and neutron stars in the electromagnetic spectrum.
Teaching
I regularly teach undergraduate and graduate classes on Numerical Methods in Physics, on Theoretical Mechanics , on Theoretical Astrophysics, and on General Relativity.
Major Projects
I am a founding member of the Event Horizon Telescope and served for three years (2016-2019) as the Project Scientist of the collaboration. I serve as Chair of the Theoretical Astrophysics Program at the University of Arizona.
News
For news articles featuring myself, and various collaborations.
I am a professor of Astronomy and Physics at the University of Arizona. My research focuses on testing the theory of general relativity across many astrophysical and cosmological scales. 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 am a founding member of the Event Horizon Telescope, the international mm-VLBI experiment that has taken the first picture of a black hole with the horizon-scale resolution, and served for three years (2016-2019) as the Project Scientist of the collaboration.
I also serve as the Chair of the Theoretical Astrophysics Program at the University of Arizona. This interdisciplinary program facilitates theoretical astrophysics research among faculty, staff, and students in three departments (Astronomy, Physics, Lunar & Planetary Laboratory) at the University.