Fig. A.1
From top to bottom: face-on density distribution of stars with different birth radii: rini ≤ 5 kpc; 5 kpc ≤ rini ≤ 10 kpc; 10 kpc ≤ rini ≤ 15 kpc; 15 kpc ≤ rini ≤ 20 kpc; 25 kpc ≤ rini. Different columns correspond to different times, as indicated. The total stellar density distribution is given in the top row, at different times.
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