Table 2
Opacities at sub-mm wavelengths and indicators.
| Name | Time | Opacity [cm2 g-1] | κ850:κ2.2 | β | |||
|
|
|||||||
| 150 μm | 350 μm | 500 μm | 850 μm | ||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
|
|
|||||||
| (sil, gra) | 105 | 49 | 8.6 | 4.4 | 1.7 | 3.1 × 10-4 | 1.8 |
| 106 | 56 | 9.6 | 4.8 | 1.7 | 2.5 × 10-4 | 1.9 | |
| 3 × 106 | 56 | 9.5 | 4.8 | 1.7 | 2.5 × 10-4 | 1.9 | |
| 107 | 56 | 9.5 | 4.8 | 1.7 | 2.5 × 10-4 | 1.9 | |
| (ic-sil, ic-gra) | 105 | 50 | 6.8 | 3.2 | 1.1 | 3.0 × 10-4 | 2.0 |
| 106 | 41 | 5.5 | 2.7 | 0.92 | 7.9 × 10-5 | 2.0 | |
| 3 × 106 | 120 | 10 | 4.0 | 1.2 | 4.6 × 10-4 | 2.3 | |
| 107 | 410 | 150 | 58 | 10 | 7.2 × 10-3 | 3.3 | |
| (ic-sil, gra) | 105 | 60 | 10 | 5.1 | 1.9 | 3.0 × 10-4 | 1.8 |
| 106 | 36 | 5.2 | 2.5 | 0.87 | 7.7 × 10-5 | 2.0 | |
| 3 × 106 | 120 | 10 | 3.9 | 1.1 | 4.8 × 10-4 | 2.4 | |
| 107 | 370 | 170 | 69 | 12 | 7.3 × 10-3 | 3.4 | |
| ic-sil+gra | 105 | 42 | 5.3 | 2.5 | 0.86 | 1.2 × 10-4 | 2.0 |
| 106 | 64 | 9.1 | 4.6 | 1.8 | 1.3 × 10-4 | 1.8 | |
| 3 × 106 | 100 | 11 | 5.3 | 1.9 | 1.8 × 10-4 | 1.9 | |
| 107 | 290 | 75 | 29 | 5.9 | 6.3 × 10-4 | 3.0 | |
|
|
|||||||
| OH94, no ice | 105 | 24 | 6.5 | 3.9 | 1.6 | 2.5 × 10-4 | 1.6 |
| OH94, thin ice | 105 | 35 | 7.8 | 3.9 | 1.4 | 7.2 × 10-3 | 1.9 |
| OH94, thick ice | 105 | 57 | 10 | 5.0 | 1.8 | 7.3 × 10-3 | 1.9 |
Notes. Opacities at sub-mm wavelengths for the four aggregate model at several times (Cols. 1 − 6). The bottom rows give the corresponding opacities from the Ossenkopf & Henning (1994) models for a gas density of ngas = 105 cm-3. (Col. 7) Ratio between the 850 μm and the 2.2 μm opacity. (Col. 8) Index of the sub-mm power law slope, κλ ∝ λβ with β derived from the opacity values at 850 and 500 μm.
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