Table A.1
Diagnostic parameters of the silicate dust species tested by us in the fitting procedure.
| Species | Ref. |
|
|
|
|
/ |
| [cm2/g] | [μm] | [cm2/g] | [μm] | |||
|
|
||||||
| Ca2Al2SiO7 | 1 | 3210 | 10.4 | 1270 | 20.7 | 0.40 |
| Ca2Mg0.5Al2Si1.5O7 | 1 | 3920 | 10.3 | 1450 | 19.4 | 0.37 |
| Mg0.4Fe0.6SiO3 | 2 | 3050 | 9.5 | 1680 | 20.9 | 0.55 |
| Mg0.5Fe0.43Ca0.03Al0.04SiO3 | 3 | 3640 | 9.7 | 1670 | 18.9 | 0.46 |
| Mg0.5Fe0.5SiO3 | 2 | 3370 | 9.5 | 1720 | 19.3 | 0.51 |
| Mg0.7Fe0.3SiO3 | 2 | 3940 | 9.6 | 1970 | 18.6 | 0.50 |
| Mg0.7SiO2.7 | 4 | 2720 | 9.3 | 1530 | 20.9 | 0.56 |
| Mg0.8Fe0.2SiO3 | 2 | 4240 | 9.7 | 2000 | 18.6 | 0.47 |
| Mg0.8Fe1.2SiO4 | 2 | 2610 | 10.2 | 1800 | 18.0 | 0.69 |
| Mg1.5Fe1.5AlSi3O10.5 | 1 | 3790 | 10.2 | 1700 | 18.8 | 0.45 |
| Mg1.5SiO3.5 | 4 | 2460 | 9.8 | 1440 | 18.9 | 0.59 |
| Mg2.4SiO4.4 | 4 | 1590 | 10.2 | 1370 | 17.8 | 0.86 |
| Mg2AlSi2O7.5 | 1 | 4480 | 10.0 | 1740 | 18.7 | 0.39 |
| Mg2Fe2AlSi4O13.5 | 1 | 3850 | 10.1 | 1730 | 18.7 | 0.45 |
| Mg2SiO4 | 4 | 2440 | 9.9 | 1220 | 17.7 | 0.50 |
| Mg3AlSi3O10.5 | 1 | 4390 | 10.0 | 1790 | 18.5 | 0.41 |
| Mg4.5Fe4.5AlSi9O28.5 | 1 | 3380 | 10.1 | 1820 | 18.5 | 0.54 |
| Mg4AlSi4O13.5 | 1 | 4450 | 9.9 | 1810 | 18.4 | 0.41 |
| Mg9AlSi9O28.5 | 1 | 4750 | 9.8 | 1980 | 18.3 | 0.42 |
| MgFeAlSi2O7.5 | 1 | 3640 | 10.3 | 1590 | 18.6 | 0.44 |
| MgFeSiO4 | 2 | 2700 | 10.1 | 1873 | 18.0 | 0.69 |
| MgSiO3 | 2 | 4910 | 9.6 | 2180 | 18.4 | 0.44 |
Notes. , and / represent the peak value of the opacity in the 9.7 μm and 18 μm silicate peaks and the ratio between these two values, respectively. and are the wavelengths where the two peaks are found.
Reference. 1) Mutschke et al. (1998); 2) Dorschner et al. (1995); 3) Jäger et al. (1994); 4) Jäger et al. (2003).
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