Correlated fluxes of observations taken with UTs. The red and dashed blue lines are the curves obtained with our first and second best-fit models. The light blue curve shows the correlated fluxes of our best-fit model found using SiC as the dust template for all the components. We observe that the main reason of discarding SiC as the best option is mostly due to the shape of the absorption feature.

The same as Fig. A.1, but chromatic phases are plotted instead of correlated fluxes.