Visibility profiles of the 231 GHz (black dots) and 94 GHz (gray triangles) continuum emission from L1448-C. In each visibility curve, we show both the best Plummer-only model (Pl, black curve) and the best Plummer + Gauss (PG, red curve) model. The PG model that includes a marginally resolved 0.16′′ -FWHM Gaussian component reproduces the 231 GHz profile better than the Plummer-only (Pl) model (see Table 6 for more information on the two models). Moreover, the PG model that includes an unresolved additional Gaussian component reproduces the 94 GHz visibility profile better.
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