Fig. 6
Wavelength-dependent parameter values of the best-fitting geometrical model. The upper left panel shows the stellar diameter. The K-band diameter of the star is superimposed as a dashed line. The upper right panel represents the FWHM of the dusty envelope. The lower left panel represents the flux ratio of the dusty envelope over the central star, while the lower right panel shows the flux ratio of the unresolved component over the central star.
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