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Table 2

Bulk densities and sources for optical properties of the dust species considered in this study.

Dust species ρd Refs. for opt. prop.
[g cm-3]

Iron (Fe) 7. 87 O88
Silicon monoxide (SiO) 2. 13 P85, W13
Cryst. fayalite (Fe2SiO4) 4. 39 Z11, F01
Cryst.a enstatite (MgSiO3) 3. 20 D95, J98
Cryst. forsterite (Mg2SiO4) 3. 27 Z11, F01
Quartz (SiO2) 2. 60 Z13
Corundum (Al2O3) 4. 00 K95
Silicon carbide (SiC) 3. 22 L93
Graphite (C) 2. 16 D84



The optical properties at wavelengths below 8 μm use amorphous enstatite.

Reference. D84: Draine & Lee (1984); D95: Dorschner et al. (1995); F01: Fabian et al. (2001); J98: Jaeger et al. (1998); K95: Koike et al. (1995); L93: Laor & Draine (1993); O88: Ordal et al. (1988); P85: Palik (1985); W13: Wetzel et al. (2013); Z11: Zeidler et al. (2011); Z13: Zeidler et al. (2013).

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