Posterior PDF contour plots for the W15* results along with the marginalised posterior PDFs on the sides for each parameter, in the power-law DTD (left panel) and log-normal DTD (right panel) cases. Red and blue contours respectively represent the results obtained using the "original" and extended priors on the parameters. Darker and lighter shades of the contours depict, respectively, the 50% and 90% confidence levels. The error bars on the marginalised posteriors mark the median of the parameters along with their 1 σ uncertainty.