Monster black holes, with masses that are a million to a billion times more than our Sun, live at the centers of most galaxies. At GSU, we specialize in observational studies of feeding black holes in AGN that measure:

• black hole masses (Bentz)
• black hole feeding (Bentz, Crenshaw)
• black hole feedback (Crenshaw)
• black hole binaries (Liu)
• AGN variability (Liu)

Gravitationally-bound collections of stars and gas, galaxies are much more than just the hosts of supermassive black holes and the luminous centers of dark matter halos. We also specialize in observational studies that measure:

• galaxy distances, luminosities and masses (Bentz)
• galaxy structures (Bentz)
• AGN/galaxy interactions (Crenshaw)

We carry out observations throughout the electromagnetic spectrum, including radio, infrared, visible, ultraviolet, and x-rays. We have dedicated access to ground-based telescopes, and a strong track record of winning competitive observing time at other ground-based observatories (e.g., WIYN, Gemini) and space-based observatories (HST, Chandra, XMM).