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Fig. 6


Simulated medium resolution (R = 500) MATISSE visibilities based on the model combining the best-fit continuum model from Sect. 3.2.3, with a C-CH disk component. Different inner radii of the C-CH disk are explored – see the legend on the left hand side. The telescope pairs, projected baseline length (B) and the position angles of the projected baseline (BPA) are shown in each subplot. Blue and red areas correspond to two different bands: 3.3 μm – aromatic and 3.4 μm – aliphatic. The expected error bars were computed from a noise model of MATISSE that includes a realistic atmospheric transmission profile (see details in the text); note that the larger error bars around 3.31 μm comes from a strong telluric water vapor absorption line.

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