Table 2
Comparison of the averaged mass absorption coefficient of Mg-rich samples with the MAC for the silicate components of the THEMIS model and of the astrosil.
| 100µm | 250µm | 500µm | 850µm | 1 mm | |
|---|---|---|---|---|---|
| 〈 MAC1 〉/MACthemis | 2.1–2.3 | 2.8–3.0 | 3.0–3.3 | 3.3–3.7 | 3.5–3.8 |
| 〈 MAC1 〉/MACastrosil | 2.0 | 2.7 | 3.1 | 3.0 | 2.9 |
| 〈 MAC2 〉/MACthemis | 2.0–2.2 | 2.1–2.2 | 1.6–1.8 | 1.5–1.6 | 1.4–1.5 |
| 〈 MAC2 〉/MACastrosil | 1.9 | 2.0 | 1.7 | 1.3 | 1.2 |
Notes. 〈 MAC1 〉 represents the MAC averaged over the four samples X35, X40, X50A, and X50B. 〈 MAC2 〉 represents the MAC averaged over the sample X35 and the mean of the X50A and X50B samples. The two values for 〈 MAC1 〉/MACthemis correspond to the amorphous forsterite-type and enstatite-type silicates of the THEMIS model, respectively.
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