I'm an astrophysics grad student at Berkeley, working on the intersection of the intergalactic medium, cosmology, and supercomputing.
I work on the Lyman-α Forest, an observational probe of the intergalactic medium. When we look at spectra of bright, distant objects called quasars, we a "forest" of absorption features blueward of the quasar's Lyα emission (the hump at 1200 Å). The absorption is the signature of the diffuse, ionized gas between us and the quasar.
I use cosmological hydrodynamic simulations to make predictions of Lyα forest flux statistics. Using many simulations with slightly varied IGM parameters and cosmological parameters, we can compare to observations to see which scenario matches best.