Fig. 9
Age of the brightest single halo WDs (and thus of the Galactic halo) as a function of WD mass. Since for single stars every age corresponds one-to-one to an initial stellar mass and WD mass, this is an alternative representation of the IFMR. The IFMRs for single stars predicted by SeBa (light blue curves) and the those predicted by MESA (dark blue curves) both differ from the black solid straight line through the data points with error bars of Kalirai (2012). The dashed lines correspond to the metallicity value that we used as our standard for the Milky Way halo in this study (Z = 0.001), while the dotted lines correspond to half that metallicity value (Z = 0.0005).
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