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Table 2.
Summary of the results of the IR spectral fitting with various silicate dust models.
| Model | Composition | χ2/d.o.f. (a) | Porosity | Th (K) | Ndust (1011 cm−2) |
|---|---|---|---|---|---|
| 1 | Astronomical silicate | 24.5 | – | 486 ± 2 | 0.573 ± 0.007 |
| 2 | Amorphous olivine (x = 0.5) | 6.4 | – | 495 ± 1 | 1.02 ± 0.02 |
| 3 | Amorphous olivine (x = 0.4) | 3.4 | – | 500 ± 1 | 0.95 ± 0.01 |
| 4 | Amorphous olivine (x = 0.5) | 3.1 | – | 494 ± 1 | 1.36 ± 0.04 |
| + absorption-free continuum | |||||
| 5 | Porous amorphous olivine (x = 0.4) | 1.6 | 0.3 | 502 ± 1 | 1.06 ± 0.01 |
| 6 | 1 μm amorphous olivine (x = 0.4) | 2.7 | – | 552 ± 1 | 0.080 ± 0.001 |
| 7 | 96% porous amorphous olivine (x = 0.4) | 1.2 | 0.3 | 493 ± 1 | 1.05 ± 0.01 |
| + 4% crystalline pyroxene (96:4) |
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