Table 2
Unsettled dust properties in the reference model in comparison to a MRN size distribution and uniform a = 0.1 μm dust particles.
| Ref. model | MRN | 0.1 μm | ||
|
|
||||
| Dust material density ρd | [g/cm3] | 2.09 | 3.0 | 3.0 |
| Mean dust size ⟨ a ⟩ | [μm] | 0.083 | 0.0083 | 0.1 |
| Mean dust size ⟨ a2 ⟩ 1/2 | [μm] | 0.11 | 0.010 | 0.1 |
| Mean dust size ⟨ a3 ⟩ 1/3 | [μm] | 0.53 | 0.016 | 0.1 |
| Particle density nd/n⟨ H ⟩ | 1.7(−14) | 4.9(−10) | 1.9(−12) | |
| Surface nd 4π ⟨ a2 ⟩ /n⟨ H ⟩ | [cm2] | 2.7(−23) | 6.6(−21) | 2.3(−21) |
FUV extinct.  |
[cm2] | 2.5(−23) | 2.8(−21) | 1.2(−21) |
| FUV dust albedo | 64% | 33% | 47% | |
mm opacity  |
[cm2/ g] | 0.038 | 0.0018 | 0.0018 |
Notes. Notation a (−b) means a × 10− b. The MRN model assumes f(a) ∝ a-3.5 from amin = 0.005 μm to amax = 0.25 μm. For the MRN and a = 0.1 μm models, we use Mie opacities for astronomical silicates (Draine & Lee 1984; Laor & Draine 1993). All models assume ρ = (1.4 amu) × n⟨ H ⟩ and a dust/gas ratio of δ = 0.01.
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