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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