Table K.5
Summary of the volume fractions and complex refractive indices adopted to generate the optical properties tested in Figure 6.
| Name | Component volume fractions | ||||||
|---|---|---|---|---|---|---|---|
| (Astro)silicates(1) (3.30 g cm−3) | Water ice(2) (0.92 g cm−3) | Troilite(3) (4.83 g cm−3) | Refractory organics(3) (1.50 g cm−3) | Amorphous carbon(4) (2.50 g cm−3) | Pyrolised cellulose(5) (1.84 g cm−3) | Graphene(1) (2.26 g cm−3) | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
| Ricci (compact) | 0.10 | 0.60 | − | − | 0.30 (ACH2) | − | − |
| DSHARP (default) | 0.17 | 0.36 | 0.03 | 0.44 | − | − | − |
| DSHARP (highwater) | 0.10 | 0.60 | 0.02 | 0.28 | − | − | − |
| DSHARP (icefree) | 0.26 | 0.00 | 0.04 | 0.70 | − | − | − |
| Zubko (ACH2) | 0.17 | 0.36 | 0.03 | − | 0.44 (ACH2) | − | − |
| Zubko (BE) | 0.17 | 0.36 | 0.03 | − | 0.44 (BE) | − | − |
| Jäger (400°C) | 0.17 | 0.36 | 0.03 | − | − | 0.44 (400°C) | − |
| Jäger (600°C) | 0.17 | 0.36 | 0.03 | − | − | 0.44 (600°C) | − |
| Jäger (800°C) | 0.17 | 0.36 | 0.03 | − | − | 0.44 (800°C) | − |
| Jäger (1000°C) | 0.17 | 0.36 | 0.03 | − | − | 0.44 (1000°C) | − |
| Draine (a = 0.01, ||) | 0.17 | 0.36 | 0.03 | − | − | − | 0.44 (a = 0.01, ||) |
| Draine (a = 0.01, ⊥) | 0.17 | 0.36 | 0.03 | − | − | − | 0.44 (a = 0.01, ⊥) |
| Draine (a = 0.1, ||) | 0.17 | 0.36 | 0.03 | − | − | − | 0.44 (a = 0.1, ||) |
| Draine (a = 0.1, ⊥) | 0.17 | 0.36 | 0.03 | − | − | − | 0.44 (a = 0.1, ⊥) |
Notes. Slightly different bulk densities for (astro)silicates (3.50 g cm−3) and water (1.00 g cm−3) are used in dsharp_opac (Birnstiel et al. 2018) to generate the optical properties for the ‘Ricci (compact)’ mixture. Zubko et al. (1996) do not report any bulk density for their amorphous carbonaceous grains; a density of 2.50 g cm−3 is adopted in dsharp_opac (Birnstiel et al. 2018) following Ricci et al. (2010b). We note, however, that Woitke et al. (2016) and Dominik et al. (2021) use 1.80 g cm−3 for the BE-sample. This difference has negligible effects on the optical properties computed with dsharp_opac. Bulk dust mixture densities are: 1.70 g cm−3 for ‘Ricci (compact)’, 1.68 g cm−3 for ‘DSHARP (default)’, 2.11 g cm−3 for ‘DSHARP (icefree)’, 1.40 g cm−3 for ‘DSHARP (highwater)’, 2.12 g cm−3 for ‘Zubko (ACH2)’ and ‘Zubko (BE)’, 1.83 g cm−3 for ‘Jäger’, 2.01 g cm−3 for ‘Draine’ opacities.
References. (1) Draine (2003); (2) Warren & Brandt (2008); (3) Henning & Stognienko (1996); (4) Zubko et al. (1996); (5) Jäger et al. (1998).
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