1. What drives the growth of black holes? Open Access Author: Yang, Guang Title: What drives the growth of black holes? Graduate Program: Astronomy and Astrophysics Keywords: X-rayactive galactic nucleusblack hole-galaxy coevolutionphotometric redshiftAGN variabilityextragalactic transient File: Download thesis.pdf Committee Members: William Nielsen Brandt, Dissertation Advisor/Co-AdvisorWilliam Nielsen Brandt, Committee Chair/Co-ChairMichael Eracleous, Committee MemberDonald P Schneider, Committee MemberKohta Murase, Outside MemberRobin Bruce Ciardullo, Committee Member