Histogram distributions and two-by-two correlations for the free parameters (R_eq, V_eq, i, β, and PA_rot) of the best-fit CHARRON RVZ model determined with the emcee code (800 walkers). The mean values and associated uncertainties obtained from these histograms are given in Table 6. The parameters do not show strong correlations in the region defined by the uncertainty around the mean values. The stronger correlation is shown by V_eq and i, which roughly follow a curve of constant V_eqsini (=260.3 km s^-1), represented by the solid lines, with the circles indicating the mean values in the histograms. The rectangles cover the corresponding uncertainty ranges on V_eq and i.