Average radius of origin of stars (top), average stellar age (middle) and star surface density profile (bottom), as a function of galactocentric radius. In all panels, the continuous (red) curve corresponds to the results of the model with radial migration (churning+blurring), while the dotted (blue) curve shows the results with no radial migration. In the top and middle panels, the shaded area contains the ±1σ values – containing ±34% of the stars – around the average. In the bottom panel, a best fit exponential with scalelength r_d = 2 of the exponentially decreasing outwards. 25 kpc in the 3 to 13 kpc region and with Σ(r = 8 kpc) = 38 M_⊙/pc² is also displayed (green dashed line).