Left-most panel: CMD of Figure 1 over which we have represented the stars from a series of three DEIMOS fields located at (ξ, η) ~ (+ 3°, +1°). These fields overlap the PAndAS MW stream and show a radial velocity signature. Stars observed with DEIMOS are color-coded by their heliocentric radial velocities, as shown above the panel. Two right-most panels: velocity of all the MW stars in these fields as black dots. The subsample of stars which fall in the white dot–dashed selection box overlaid on the CMD are shown in red. They are all clumped at a well-defined systemic velocity, except for one star with a velocity of −263 ± 5 km s⁻¹ that falls beyond the displayed velocity range.