My research focuses on understanding the physical processes that drive and regulate the growth of galaxies. Modern cosmological simulations cannot explain galaxies' properties without invoking large-scale inflows and outflows. Stars cannot continue to form in galaxies over billions of years without a replenishment of gas in galaxies from the intergalactic medium (IGM), while feedback from star formation and AGN activity can fuel massive outflows from a gas-rich galaxy that may choke off star formation. The competition between these regulating processes is played out in the circumgalactic medium (CGM), the interface between galaxies and the IGM, where outflows may cool and stall, where infalling gas may encounter winds or be shock-heated and be halted.
