Cornerplot showing the samples from the posterior distribution of T_eff, log g, [Fe/H], ξ, and radial velocity prior to the heliocentric correction (RV) for NGC 6822-103. The solution vector is (T_eff, log g, [Fe/H], ξ, RV=(3845.23 K, 0.29, −0.54, 5.17 km s⁻¹,−57.50 km s⁻¹). Unfortunately, log g is not well constrained. Contours represent regions of highest posterior probability, and their shape highlights potential correlations.