Two-dimensional projections of the posterior PDF in the form of a scatter plot matrix. The matrix’s diagonal shows the posterior PDF of each estimated parameter. The MAP estimation is represented as a vertical cyan line on the histograms and as a cyan square in the scatter plot. The true N-PDF parameters obtained by fitting the dust-derived Orion B N -PDF are shown as red crosses. The dashed black line shows the range in PL index α of the N-PDF expected for gravitational collapse. The estimations closely match the reference values, although clear degeneracies are present in the posterior PDF.