Table 3
Summary of the best-fit parameters for fitting the MATISSE data with different models with amorphous carbon as the best-fit dust species.
| Parameter | Ring (one-step) | Ring (NN) | Spherical shell | Double ring (Lebreton et al. 2013) | Double ring |
|---|---|---|---|---|---|
 |
0.23 | 0.22 | 0.25 | 1.60 | 0.51 |
| Inner radius Rin (au) | 0.11 | 0.2 | 0.12 | 0.09/1.59 | 0.12/2.39 |
| Outer radius Rout (au) | 0.12 | 0.202 | 0.13 | 0.10/2.10 | 0.14/3.43 |
| Grain size a (μm) | 0.53 | 0.48 | 0.61 | 0.01–1000/3.51–1000 | 0.41/47 |
| Inclination i(∘) | 90 | 90 | – | 65.6/65.6 | 65.6/65.6 |
| Total dust mass M(M⊕) | 3.25 × 10−10 | 5.35 × 10−10 | 3.61 × 10−10 | 2.50 × 10−10/2.86 × 10−6 | 4.04 × 10−10/5.79 × 10−7 |
Notes. For the double-ring models, the inner and outer ring components are shown separately and distinguished with “/”. The inner ring is composed of amorphous carbon; the outer ring consists of a 50:50 mixture of astronomical silicates and amorphous carbon. For the double-ring model from Lebreton et al. (2013) consider Table 2 (free outer slope, VINCI+KIN data) from the corresponding publication. For our double ring-model we considered the MATISSE+VINCI+KIN data.
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