Dark Matter Debris Flows in the Milky Way
  We show that subhalos falling into the Milky Way create a flow of
tidally-stripped debris particles near the galactic center with characteristic
velocity behavior. In the Via Lactea-II N-body simulation, this unvirialized
component constitutes a few percent of the local density and has velocities
peaked at 340 km/s in the solar neighborhood. Such velocity substructure has
important implications for surveys of low-metallicity stars, as well as direct
detection experiments sensitive to dark matter with large scattering
thresholds.
