our major research interests are focused on understanding the growth of structure in the universe, how structure formation drives galaxy formation, and how galaxies can be used to probe the fundamental physics of the universe, including the nature of dark matter and dark energy. our group uses large computer simulations, physical and empirical models, and the deepest and largest galaxy surveys to determine how the universe formed and evolved.
some of the current topics we are working on include:
dark energy
dark energy constraints from galaxy clusters
dark energy constraints from weak gravitational lensing
dark energy constraints using galaxy statistics down to small scales
dark matter
probing the evolution of dark matter using weak gravitational lensing
looking for dark matter substructure in strong gravitational lenses
looking for dark matter in milky way satellites
predictions for the spatial and velocity distribution of matter in dark matter halos
galaxy formation
precise models of the galaxy-halo connection
implications for galaxy formation and evolution
as a tool for interpreting measurements from large cosmological surveys
understanding dwarf satellites in the Milky Way and beyond
the mass distribution and galaxy content of galaxy clusters
using intensity mapping to probe faint galaxies and the gas-halo connection