Narrow Results

If a satellite in orbit around the Milky Way is losing mass due to tidal forces the debris will spread in leading/trailing streamers along its orbit. These streamers are dynamically cold and (if in an orbit at sufficient distance from the Galaxy) can maintain coherence for a Hubble time. Such unique properties make them particularly sensitive probes of the mass distribution in the Milky Way. In this contribution I will briefly outline the properties of tidal debris and evidence for its existence around the Milky Way. I will then review methods for recovering the global mass distribution in the Milky Way using such stellar distributions. Finally, I will describe an approach to using tidal debris as a constraint on the degree of dark matter substructure around the Milky Way.