Open Access
Table 1
Continuum results: best-fit parameters foro: (i) a single component model (elliptical Gaussian in the u, v plane), (ii) and a double-component model (two circular Gaussian functions after deprojection in the u, v plane according to the orientation and inclination determined at optical wavelength).
| 0.87 mm | 1.3 mm | 2.8 mm | |
|---|---|---|---|
| Synthesized beam | |||
| Beam size FWHM (″) | 0.43 × 0.35 | 2.1 × 1.0 | 0.76 × 0.56 |
| Beam size FWHM (au) | 47 × 39 | 231 × 110 | 84 × 62 |
| Beam PA (°) | 121 | 14 | 57 |
| Zero-baseline flux | |||
| Fν (u, v ≃ 0, mJy) | 6.00 ± 0.25 | 4.00 ± 0.25 | 0.70± 0.05 |
| Spectral index(*) (β) | −0.16 ± 0.29 | ||
| Single-component fit | EGAUSS | ||
| Fν (best-fit, mJy) | 3.93 ± 0.15 | 3.76 ± 0.29 | 0.39 ± 0.02 |
| Semi-major axis FWHM (au) | 54 ± 2 | 253 ± 26 | 35 ± 4 |
| Semi-minor axis FWHM (au) | 41 ± 2 | 156 ± 13 | 32 ± 4 |
| Inclination (°) | 41 ± 5 | 53 ± 6 | 24 |
| PA (°) | 2 ± 7 | 21 ± 8 | 20 ± 50 |
| Double-component fit | CGAUSS | ||
 (mJy) |
7.42 ± 1.42 | 4.20 ± 1.24 | 0.71 ± 0.09 |
 (best-fit, mJy) |
3.02 ± 0.16 | 1.66 ± 0.57 | 0.32 ± 0.02 |
| FWHMint (au) | 35 ± 2 | 110 ± 33 | 28 ± 6 |
| Spectral index(*) (βint) | −0.05 ± 0.07 | ||
 (best-fit, mJy) |
4.4 ± 1.3 | 2.54 ± 0.67 | 0.39 ± 0.07 |
| FWHMout (au) | 322 ± 55 | 418 ± 121 | 407 ± 66 |
| Spectral index(*) (βout) | 0.17 ± 0.23 | ||
| (fixed PA = 356°, i = 53°) | |||
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