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Table 1
Parameters of a geometrical ring fitted to the uv data, and comparison with the results obtained with previous data.
| Ring observational parameters | ||
| This work | Guilloteau et al. (1999) | |
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||
| Frequency (GHz) | 267 | 220 |
| Ang. resolution (′′) | 0.45 × 0.25 | 0.88 × 0.56 |
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| Flux (mJy) | 760 ± 10 | 544 ± 3 |
| Inner radius (′′) | 1.38 ± 0.01 | 1.27 ± 0.01 |
| Outer radius (′′) | 1.84 ± 0.01 | 1.90 ± 0.01 |
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