Upper row of plots shows the location of the ices, in a series of models with increasing mixing parameter α_mix. The icy regions are hashed when the respective ice concentration, for example n_H2O#/n_〈H〉 for water ice, is larger than 10⁻⁵⁵. The background colours show the hydrogen nuclei density n_〈H〉 from 10² cm⁻³ (black) to 10¹⁶ cm⁻³ (red). The dashed black contour lines show the radial visual extinction A_V,rad = 1 and vertical visual extinction A_V,ver = 1, and the red dashed lines show two dust temperature contours, 25 K and 150 K. The lower row of plots shows the respective SEDs for selected inclination angles at a distance of 140 pc. The yellow lines indicate the adopted photospheric spectrum of the naked star. We note that the absorption feature around 2.5 µm is due to molecular absorption in the stellar photosphere, whereas all other narrow absorption and emission features are due to ices, except for the broad 10 µm/20 µm silicate emission features.