![Richard McCray](/aps/sites/default/files/styles/small/public/people/mccray_richard.jpeg?itok=CdZTw9WV)
Theoretical astrophysics, including the physics of interstellar gas,Active Galactic Nuclei, binary X-ray systems, and supernova explosions.I also observe these systems with spacecraft such as the Hubble SpaceTelescope (HST) and the Chandra X-ray telescope.