Corner plot displaying the fitted and derived parameters for the direct heating (DH) model with a cold spot and with post-irradiation gravity darkening (post-IGD). Contours are the 68%, 95% and 99.7% confidence levels. The plots along the diagonal are the posterior distributions of the parameters and the solid lines overlaid are the prior distrbutions. The vertical dashed lines represent the 0.025, 0.5 and 0.975 quantiles.