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Table 1

Model factors and hyper-parameters with their a priori range of uncertainty or discrete set of values.

Factor Xi Symbol [range], step
Far-infrared temperature (K) T0 [50, 90], 10
Mixing fraction (%) f [1, 7], 1
Average asymmetry factor ξ [−0.6, 0.6], any
Size distribution n(a)da = n0 a−pda
Power-law index p [1.4, 3.4], any
Minimum size (µm) amin [1, 1000], 9 sizes/decade
Maximum size (mm) amax [1 , 50], 9 sizes/decade
Single size for intra or aerial, vol mixtures a, {ai, ap} [1 µm, 5 cm], 9 sizes per decade
Hyper-parameters
Main material Ih crystalline water ice
Contaminants AmC, Th amorphous carbon, tholins
Mixing type intra/aerial/vol Intra-particle, aerial, intimate
Diffraction correction None/δ-Edd/esa Mie, δ-Eddington, equivalent slab approximation

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