Distribution of the main parameters of the perturbed SED fits of the four R9 pixels (Fig. 3). For each parameter, we show the number of Monte-Carlo fits to the perturbed SED per bin of parameter value. The value of each parameter, for a given iteration is the combination of the values of the parameter for each of the 4 pixels. We quote both the mean and the median. The blue distributions correspond to the rigorous Monte-Carlo statistics, while the red distributions are from our reconstruction method (Appendix B).