Table 1
Value of the MAC of the glassy samples X35, X40, X50A and X50B.
| Mass absorption coefficient (cm2 g-1) | ||||||||||
|
|
||||||||||
| 100 μm | 250 μm | 500 μm | 850 μm | 1 mm | ||||||
| 10 K | 300 K | 10 K | 300 K | 10 K | 300 K | 10 K | 300 K | 10 K | 300 K | |
|
|
||||||||||
| X35 | 194.6 | 217.2 | 19.2 | 30.1 | 2.0 | 5.2 | 0.4 | 1.8 | 0.2 | 1.4 |
| X40 | 200.9 | 216.9 | 68.6 | 74.7 | 25.4 | 31.3 | 7.9 | 14.0 | 5.0 | 11.2 |
| X50A | 153.4 | 160.2 | 27.9 | 36.5 | 3.9 | 8.1 | 1.7 | 3.5 | 1.7 | 3.1 |
| X50B | 136.8 | 152.2 | 36.5 | 39.9 | 10.2 | 12.8 | 2.9 | 4.8 | 2.0 | 3.5 |
| ⟨MAC1⟩1 | 171.4 | 186.4 | 38.1 | 45.3 | 10.4 | 14.3 | 3.2 | 6.03 | 2.2 | 4.8 |
| ⟨MAC2⟩2 | 169.8 | 186.7 | 25.7 | 34.1 | 4.5 | 7.8 | 1.3 | 3.0 | 1.0 | 2.3 |
| MAC sphere 0.1 μm 3 | 33.5 | 5.1 | 1.2 | 0.48 | 0.36 | |||||
| MAC distrib spherical grains 3 | 36.9 | 4.9 | 1.1 | 0.45 | 0.34 | |||||
| MAC distrib prolate grains 3 | 50.3 | 6.8 | 1.5 | 0.6 | 0.47 | |||||
| MAC CDE3 | 74.0 | 11.5 | 2.6 | 1.05 | 0.81 | |||||
Notes.
⟨MAC1⟩ represents the MAC averaged over the four samples X35, X40, X50A and X50B, see Sect. 5.1.
⟨MAC2⟩ represents the MAC averaged over the sample X35 and the mean of the X50A and X50B samples, see Sect. 5.1.
These MAC are calculated using the optical constants of the “astrosilicates” from Li & Draine (2001), see Sect. 5.1.
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