Exploration of the f_DM − Σ_bar relation across different stellar masses and redshift intervals. First panel: f_DM − Σ_bar relation for the low-stellar mass bin (M_star ≤ 10¹⁰ M_⊙) in yellow and the high-stellar mass bin (M_star > 10¹⁰ M_⊙) in orange. The original best-fit to f_DM − Σ_bar relation is shown blue dashed line, while the best fit of low- and high-stellar mass bins are shown by brown and orange dashed lines, respectively. Second-third panel: f_DM − Σ_bar relation separated for low- and high-stellar masses, left and right panels respectively. In both panels, low-z (z ≤ 1) and high-z (z > 1) galaxies are shown in blue and red, respectively, and corresponding best fits are shown in dark blue and red dashed-lines. In the first panel, median error on the data points is indicated by gray cross. The filled crosses & circles represent the measurements taken within R_opt and R_out, respectively. We note to the reader that these relations are plotted exclusively for objects with f_DM > 0, while the full sample is shown in Figure 13.