Lower left: Corner plot showing the posterior sampling of the parameter grid when applying the DRIFT-PHOENIX model to the full set spectroscopic and photometric data presented in Sect 2. Two sampling runs were performed: the results obtained when using no mass prior, that is an uninformative uniform prior, and when using a Gaussian prior based on the dynamical mass obtained from the orbital fit (see Sect. 3) are shown in black and orange, respectively. Above the panels showing the marginalised posterior distributions we report their median values and their differences to the 84th and 16th percentiles in superscript and subscript, respectively. Upper right: Same as lower left for the Sonora Diamondback model grid.