MCMC corner plot for the vertical structure fit (purple; Sect. 5.4) overlaid over the basic 5-parameter fit (black; Fig. B.1). The fixed value of ξ₀ is indicated with a dashed black line. The ξ₀ posterior follows the prior, and the parameter is strongly correlated with ρ₀. All other parameters take similar values to the 5-parameter fit. We infer that the disk scale height ξ₀ cannot be usefully inferred from the in-hand data.