Top panel: V component of the velocity as a function of [α/Fe] for the thick disk (filled circles) and thin disk (open circles) populations, as defined in Fig. 6. Middle panel: V component of the velocity as a function of [αFe] for thick disk sequence stars in the sample. Bottom panel: V component of the velocity as a function of [αFe] for thin disk sequence stars in the sample. In the middle and bottom panels, stars without age determinations are shown as solid grey circles. For stars with age determinations, the color and the size of the symbols indicate the age using the scale given in the color bars shown on the right within each plot. Solid black lines represent the best fit linear regression to the data, with the fit coefficient indicated. For the thick disk sequence, only stars in prograde orbits (V > −220 km s-1) have been included in the fit. For thin disk sequence stars, the two points with V < −200 km s-1 have not been included when evaluating the best fit linear regression of the data.
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