I_3.3μm (top panel) and I_3.4μm (bottom panel) as observed by NaCo (black) and as predicted by the model (blue). The fluxes are the sum of the integrals of the Gaussians related to each feature and averaged for different distances from the star in 0.1′′ steps. The transparent grey box on the left represents the distance up to which the cavity is extended in the POLARIS simulations: ~0.12′′ or 13 au). The models were convolved with a 0.1′′ Gaussian. Amask must be used around the central star because of the high magnitude gradient between on-star spectra and others.