Comparison of different models and residuals for ID 00011 (z = 0.5121), a source best fit with a double power law soft excess model. The top panel shows the folded spectrum along with each of the best fit models, and the second, third, fourth, fifth and sixth panels show the residuals for the power law (grey), warm absorber (blue), partial covering (orange), blackbody (dark red) and double power law (red) models, respectively. The Bayesian evidence is also given for each model, to ease comparison. The spectrum and residuals are re-binned for clarity. The best fit is a power law soft excess, with a Bayes factor of K_pl ∼ 1.22 × 10⁷ and a significance of > 99%. Data have been re-binned for display purposes.