Left: individual radial velocities as a function of age. Symbols with a right-handed arrow show stars which fell out of the lower metallicity range of the isochrones and therefore only lower age limits could be determined. Right: radial velocities as a function of [Fe/H]. In both panels, an increase of the velocity dispersion with decreasing [Fe/H] or age is visible. The RV distribution becomes non-Gaussian for stars older than ~ 8 Gyr or below [Fe/H] = −1.5. In the right panel, we plot all stars with a valid CaT-measurement, whereas in the left panel we restrict our selection to the same sample shown in Fig. 10. As before, larger symbols indicate stars with higher photometric and chemical precision and blue symbols highlight stars associated with the GCs H2 and H5.