Fig. 3.
2MASS H0 versus (J − K)0 diagram. Black dots represent stars in Baade’s Window (as an example of a clean bulge-like CMD) dereddened using the extinction map Gonzalez et al. (2012) through the beam calculator (http://mill.astro.puc.cl/BEAM/calculator.php). Overlaid with circles and color coded according to their metallicity are the stars of the selected spectroscopic sample, dereddened by adopting the DR14 ancillary data for AK. A set of PARSEC isochrones of 10 Gyr is depicted by the solid lines, also color coded according to their metallicity.
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