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Table 1

Details of the various opacity regimes by type, showing the transition temperature and the constants κ0, a and b.

# Regime κ0 [cm2/g] a b Tmin [K] Tmax [K]

1 Ice grains 2 × 10-4 0 2 0 170
2 Sublimation of ice grains 2 × 1016 0  −7 170 210
3 Dust grains 5 × 10-3 0 1 210
4 Sublimation of dust grains 2 × 1034  −9 3000
5 Molecules 2 × 10-8 3 3000
6 Hydrogen scattering 1 × 10-36 10
7 bound-free & free-free 1.5 × 1020 1

Notes. All values are quoted in cgs units. See Lin & Papaloizou (1985) for more details.

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