Image Details
Caption: Fig. 15.
Strong abundance gradient, already qualitatively visible in the top left panel, which shows the strength of the TiO band at 7100 Å in our entire giant sample (black points) vs. radial distance. Note that dwarfs (red crosses) cover the full range in TiO strengths at all radii. The radial metallicity gradient is then clearly present in the spectroscopic MDFs in three different radial bins (top right, solid lines) and for our dwarf‐cleaned CaT sample (bottom). However, none of the distributions fully resembles the stream component (shaded histogram). Note that there are no metal‐rich stars beyond ~50 kpc.
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