Table 2.
Comparison of the mass-normalized absorption coefficient κ for ellipsoidal particles in a vacuum at λ = 100 μm.
| κ (cm2 g−1) | Comment | ||
|---|---|---|---|
| θ ∼ 300 K | θ ∼ 10 K | ||
| Olivine powder [2] | 13 | 6 | Fe: 8% |
| Forsterite powder [1] | 15 | 2 | 4 K |
| Olivine crystal [2] | 3.5 | 0.09−0.35 | Fe: 11% |
| Forsterite crystal | – | 0.009−0.025 | This work |
| Enstatite powder [1] | 25 | 5 | 4 K |
| Enstatite crystal | 2.4-5 | 0.35−1.3 | This work |
Notes. Original powder data were corrected for the influence of the PE embedding, crystal absorption coefficients were transformed into comparable data by means of the CDE model (for details see Mutschke et al. 2013).
References. Literature data were taken from [1] Chihara et al. (2001) and [2] Mutschke et al. (2013).
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