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Table A.1

Properties of the two main continuum components, C and VY.

IDν θmaj θmaj θmin θmin PA Sν α β Td τν Md
(mas) (R) (mas) (R) (°) (mJy) (K) ( M)

C321 182 ± 13 33 117 ± 16 21 112 ± 10 348 ± 16 1.9 −0.1 <450 0.19 2.5 × 10-4
C658 206 ± 4 37 99 ± 3 18 115 ± 1 1532 ± 55 1.9 −0.1 <450 0.17 1.6 × 10-4
VY321 219 ± 19 40 144 ± 33 26 4 ± 17 155 ± 14 2.7 0.7 970 0.04 4.0 × 10-5
VY658 150 ± 8 27 73 ± 17 13 22 ± 5 501 ± 53 2.7 0.7 970 0.02 1.8 × 10-5

Notes. θmaj and θmin: major and minor axes of the deconvolved components of the Gaussian fits to the continuum components; PA: position angle; Sν: integrated flux density from the deconvolved fits; α: spectral index; β: dust emissivity spectral index; Td: dust temperature assuming isothermal and optically thin dust, which may not be the case for the C component; τν: optical depth; Md: dust mass.

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