When did the first luminous objects appear in the Universe? How did the first generations of galaxies and quasars heat up the intergalactic gas, re-ionize the Universe and end the cosmic dark ages? How did the billion solar mass black holes grow? These are the main questions that we want to answer.

Research Interests

• High-Redshift Quasars/Galaxies
• Black Hole Formation and Growth
• Black Hole and Galaxy Co-evolution
• Cosmic Reionization
• Quasar Absorption Line Systems

© Department of Astronomy and Steward Observatory, University of Arizona, Tucson, AZ, 85721