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Fig. 7

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Circularly averaged 1.36 mm visibility amplitudes as function of projected baselines in . The black circles are from this work while the red circles are from previous SMA observations at 1.1 mm (Jørgensen et al. 2009) scaled to 1.36 mm with α = 2.5. The error bars indicate the statistical errors of each bin. The blue line is the simulated continuum emission of the spherical envelope model from Kristensen et al. (2012) sampled using the observed uv points. An arrow in the first panel shows an example of the continuum excess toward TMC1A. Solid squares are the 1.36 mm single-dish flux. The zero-expectation level given in dotted line is the expected amplitude due to noise in the absence of source emission.

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