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Table 1

Best-fit multi-component model to the ALMA band 7 continuum visibilities.

Component RA offset Dec offset Sν Major axis Axis ratio PA Tb
(mas) (mas) (mJy) (mas) (°) (K)

Uniform elliptical disk 0 0 544.7 ± 0.5 57.8 ± 0.1 1.09 ± 0.01 53.5 ± 0.4 2760 ± 140
Elliptical Gaussian (NE-peak) 9.4 ± 0.1 12.9 ± 0.1 16.1 ± 0.4 19.8 ± 0.5 2.38 ± 0.02 159.3 ± 1.1 1055 ± 90
Circular Gaussian (east-extension) 27.0 ± 0.1 3.6 ± 0.1 16.6 ± 0.3 8.9 ± 0.2 1 ... 2260 ± 135
Thin elliptical ring 0 0 33.8 ± 0.4 70.0 ± 0.2 1.09 ± 0.01 53.5 ± 0.4 ...

Notes. Positive right ascension (RA) and declination (Dec) values represent east and north, respectively. Sν is the flux density. Axis ratio = major axis/minor axis. Position angle (PA) is measured east of north. Tb is the brightness temperature. Error values are the fitting errors except for the brightness temperature values which include the uncertainty in the absolute flux density.

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