Spatial intensity profile for the models shown in Fig. 5 (minimum luminosity phase). Each panel corresponds to a wavelength in the N-band interval [8–13 μm]. The dark blue curve is from a snapshot with core-mantel grains of 5% thickness. The light blue curve show the results from fitting the core-mantel spectra with snapshots of the atmosphere where we set the lower limit for the grain temperature to 450 K.