(a) Results of the chopper.py GMM analysis on the PCA-decomposition coefficients presented in Fig. 6 using a value of K=5. The resulting clusters are represented using different colors in the corner plot of the distribution of the coefficients. (b and c) Spatial maps of the resulting PCA+GMM clusters found by chopper.py compared to HST images. (d) Mean spectra of the clusters found by chopper.py. (e) Same as panel d but the spectra are normalized for the radiance measured at 2.73 µm.