Spatial distribution of the DART spectroscopic observations in Sextans. The grey points show the stars observed around the CaT survey (Battaglia et al. 2011). The blue circles correspond to the probable members of this medium-resolution sample, while the green points are the stars of our high-resolution sample (see Table 2 for the values of RA and Dec). The black ellipse represents the tidal radius of Sextans calculated by Cicuéndez et al. (2018).