Fig. 1
Map of the Galactic bulge showing the five analyzed fields (SW, B3, BW, B6, and BL). The positions of the microlensed dwarfs from Bensby et al. (2017) and the fields analyzed in Barbuy et al. (2013), Ernandes et al. (2018), Johnson et al. (2014), and Schultheis et al. (2017) are also marked in the figure. The dust extinction towards the bulge is taken from Gonzalez et al. (2011, 2012) scaled to optical extinction (Cardelli et al. 1989). The scale saturates at AV = 2. The COBE/DIRBE contours of the Galactic bulge are from Weiland et al. (1994).
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