Table 2
Best-fit parameters with their respective 1σ uncertainty in parenthesis, obtained from fitting separate components to the continuum visibilities: either one component (radially constant disk, a ring, and a Gaussian) or a combination of these components.
| Component | ΔRAa | ΔDeca | S ν,345.8 GHz | α | Semimajor axis | Inclination | PA |
|
| [′′] | [′′] | [mJy] | [′′] | [°] | [°] | |||
|
|
||||||||
| 1 component | ||||||||
|
|
||||||||
| Gaussian (G) | –0.039 | 0.017 | 338.0 (0.7) | –3.2 (0.1) | 0.53 (0.01) | 60.4 (0.4) | 119.4 (0.4) | 9.69 |
| Ring (R) | –0.046 | 0.022 | 312.3 (0.5) | –2.9 (0.1) | 0.50 (0.01) | 59.0 (0.3) | 116.7 (0.4) | 9.30 |
| Disk (D) | –0.044 | 0.021 | 322.4 (0.6) | –3.1 (0.1) | 0.19 (0.07), 0.74 (0.03)b | 59.4 (0.6) | 117.5 (0.4) | 8.97 |
|
|
||||||||
| >1 components | ||||||||
|
|
||||||||
| D + R | ||||||||
| Disk 1 | –0.053 | 0.029 | 252.6 (1.3) | –3.2 (0.2) | 0.21 (0.02), 0.75 (0.01)b | 59.7 (0.4) | 118.0 (0.1) | |
| Ring 1 | fixed | fixed | 65.6 (1.3) | –1.6 (0.9) | 0.45 (0.01) | fixed | fixed | |
| Total | 318.2 (1.8) | –2.9 (0.4) | 5.76 | |||||
|
|
||||||||
| D + D | ||||||||
| Disk 1 | –0.053 | 0.029 | 215.1 (2.1) | –3.1 (0.5) | 0.26 (0.02), 0.61 (0.01)b | 59.6 (0.4) | 117.9 (0.3) | |
| Disk 2 | fixed | fixed | 108.1 (2.2) | –2.8 (1.0) | 0.32 (0.06), 0.90 (0.01) | fixed | fixed | |
| Total | 323.1 (3.0) | –3.0 (0.6) | 5.50 | |||||
|
|
||||||||
| D + D + G | ||||||||
| Disk 1 | –0.063 | 0.039 | 221.2 (2.1) | –4.5 (1.1) | 0.24 (0.01), 0.63 (0.01)b | 59.3 (0.4) | 117.1 (0.3) | |
| Disk 2 | fixed | fixed | 87.0 (2.1) | –2.5 (0.5) | 0.34 (0.07), 0.94 (0.01) | fixed | fixed | |
| Gaussian | 0.270c | –0.240c | 15.7 (0.3) | –1.5 (1.1) | 0.15 (0.01) | 70.1 (1.0) | 67.4 (4.6) | |
| Total | 323.9 (3.0) | –3.0 (0.7) | 5.41 | |||||
Notes. When fitting a disk and ring component simultaneously, the following parameters were fixed between the two: the offset from the pointing center, the inclination, and position angle. In the table we represent these values as “fixed”. The spectral slope α (5th column) is calculated following Sν∝να.
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