Fig. 3
Real (top subpanel) and imaginary (bottom subpanel) visibilities as a function of baseline length for ISO-Oph160 (top figure) and ISO-Oph193 (bottom figure). The ALMA points were binned to increase the signal-to-noise ratio. The curves show the best-fitting models: the truncated power law Σ model as a solid blue line and the exponentially tapered model as a red dashed line.
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