Title: Action-angle modeling of tidal streams

Abstract:
Tidal streams hold enormous promise as probes of both the large-scale structure of the Milky 
Way halo’s density distribution and its small-scale fluctuations. However, their practical 
use has been hampered by the absence of simple tools for modeling their structure in realistic 
galactic potentials. I will present a new framework for describing the dynamics of tidal streams 
that consists of simple models for the distribution of tidal debris in frequency--angle space 
which can be converted into observable coordinates through a novel method for calculating 
action-angle coordinates for any potential.