Open Access
Table 1
For each type of material, the values of the volume taken by each monomer in the grain Vm , the density of the grain ρgrain , and the dust-to-gas ratio Md/Mg in the ISM for a solar composition.
| Monomer | Vm (cm3) | ρgrain (g cm−3) | Md/Mg |
|---|---|---|---|
| C | 9.01 × 10−23 | 2.23 | 2.35 × 10−3 |
| Mg2SiO4 | 7.33 × 10−23 | 3.21 | 2.05 × 10−3 |
| Al2O3 | 4.24 × 10−23 | 4.02 | 1.05 × 10−4 |
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