Observed SED and radial profiles plotted along with the simulated data from the FG, SW1, and SW2 models in Table 2. For a detailed description of the observational data see Ertel et al. (2014). Note that data points with a signal-to-noise ratio <3 are excluded from the available Spitzer/IRS spectrum. In the radial profile plots, the gray-shaded areas depict the observed data with 1σ uncertainties at PACS wavelengths (from top to bottom: 70, 100, and 160μm). Cuts along the long and short axes are given in the left and right column, respectively.