Speaker: Mike Kuhlen, Institute for Advanced Study at Princeton
Abstract: It is a clear unique prediction of the cold dark matter paradigm of cosmological structure formation that galaxies form hierarchically and are embedded in massive, extended dark halos teeming with self-bound substructure or "subhalos". The amount and spatial distribution of subhalos around their host provide unique information and clues on the galaxy assembly process and the nature of the dark matter. I will present results from the "Via Lactea" simulations of Galactic CDM substructure, focusing in particular on the possibility of directly observing it through the detection of gamma-rays from DM annihilations in the centers of subhalos.