Velocity histograms along different radial bins (with the numbers representing their mean locations). The solid line represents our observed, dwarf‐cleaned velocity sample. Shown as a shaded histogram is the velocity distribution of the stream particles drawn from our simulations at the same radial location as the observed fields, while the dashed thin line indicates the simulated contribution of M31 halo particles to the velocity structures at these distances. Each distribution has been normalized to unity.