Results using the magnetic disc model described in Sect. 3.5. This takes into account the free-free from metals and H⁻ and the bound-free from H⁻ described in Sect. 3.6. On the upper right, we have the best fit for the data of Bands 3, 4, 7, and 9 represented with their error bars using the fluxes of Table 3. The modelled flux is represented by the solid line, obtaining a partially thick free-free emission with a spectral index of 1.76. At the bottom left, we have the corner plot with the best fit parameters $\log ({\dot{M}}_{\mathrm{p}}/(M_{\mathrm{J}\mathrm{u}\mathrm{p}}/\mathrm{y}\mathrm{r}))=-{5.37}_{-0.12}^{+0.06}$ and $B_{\mathrm{p}\mathrm{s}}={610}_{-375}^{+98}\mathrm{G}$ at 1 σ. The minimum reduced χ² is 2.37.