Fig. 4.

Rmax vs. zmax for the thick-disc (left), TDtail (middle), and pureHalo (right) populations, computed for an integrable two-component Milky Way Stäckel potential. In all subsets, the amount of structure has drastically decreased. The clear overdensity of stars in the TDtail sample and at Rmax ∼ 6.5 kpc and zmax ∼ 0.5 kpc corresponds to the globular cluster M4 and is thus of no specific interest.
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