Annalisa Pillepich (UCSC)

"The effects of baryons on the DM halo and subhalos of simulated Milky-Way-like galaxies"

The Eris simulation is considered one of the highest-resolution and most realistic up to date cosmological N-body/SPH simulation of a close analog of a Milky Way disk galaxy. I compare Eris and its dark-matter only twin ErisDark? to quantify and understand the effects that gas dynamics, supernova feedback, and star-formation recipes have on the global properties and DM profiles of the MW halo and on its satellite population.