Fig. 5
Azimuthal velocity as a function of [Fe/H], colour-coded according to the [Mg/Fe] abundance (the velocity and metallicity ranges have been truncated for visualisation purposes). Horizontal dashed lines are plotted at Vφ = 210 km s-1 and Vφ = 185 km s-1. Typical errors on Vφ and [Fe/H] are represented in grey at the bottom left corner.
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