Table 1
Value of the MAC of the E10, E20, E30, E40, E10R, E20R, E30R, and E40R samples in the polyethylene matrix compared with that of the silicate component of cosmic dust models in polyethylene.
| Mass absorption coefficient in polyethylene (cm2 g−1) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 100 μm | 250μm | 500 μm | 850μm | 1 mm | ||||||
| 10 K | 300K | 10 K | 300 K | 10 K | 300 K | 10 K | 300 K | 10 K | 300 K | |
| E10 | 260.0 | 305.3 | 37.7 | 92.6 | 7.2 | 20.6 | 1.0 | 6.0 | _ | _ |
| E20 | 224.8 | 243.5 | 46.2 | 58.8 | 6.8 | 14.2 | 1.5 | 4.9 | 1.0 | 3.7 |
| E30 | 195.2 | 217.8 | 41.0 | 52.9 | 7.6 | 14.1 | 2.8 | 6.0 | 2.4 | 5.1 |
| E40 | 219.3 | 245.0 | 35.7 | 62.5 | 5.8 | 15.7 | 2.2 | 7.0 | 2.0 | 6.1 |
| E10R | 244.0 | 270.4 | 57.5 | 80.0 | 11.5 | 23.6 | 3.9 | 10.4 | 3.5 | 8.9 |
| E20R | 249.4 | 268.6 | 55.1 | 79.2 | 14.4 | 24.6 | 7.0 | 12.2 | 5.8 | 10.1 |
| E30R | 225.7 | 253.9 | 44.7 | 67.3 | 6.8 | 18.8 | 1.4 | 8.0 | 0.8 | 6.2 |
| E40R | 195.2 | 219.0 | 39.2 | 53.7 | 5.0 | 15.2 | 1.3 | 7.4 | 1.0 | 6.1 |
| 〈MAC〉Exx(1) | 225 | 253 | 40 | 67 | 6.8 | 16.1 | 1.9 | 6.0 | 1.4 | 4.8 |
| 〈MAC〉ExxR(2) | 229 | 253 | 49 | 70 | 9.4 | 20.6 | 3.4 | 9.5 | 2.8 | 7.8 |
| 〈MAC〉all(3) | 227 | 253 | 45 | 68 | 8.1 | 18.3 | 2.6 | 7.7 | 2.1 | 6.3 |
| MAC sphere 0.1 μm(3) | 82 | 12.6 | 2.8 | 1.15 | 0.9 | |||||
| MAC distrib spherical grains(3) | 84.2 | 12.6 | 2.8 | 1.15 | 0.9 | |||||
| MAC CDE (4) | 74.0 | 11.5 | 2.6 | 1.05 | 0.81 | |||||
Notes. See Sects. 4.1 and 4.3 of Demyk et al. (2017).(1) MAC averaged over the four unprocessed samples E10, E20, E30, and E40.(2) MAC averaged over the four processed samples E10R, E20R, E30R, and E40R.(3) MAC averaged over the eight samples E10, E20, E30, E40 and E10R, E20R, E30R, and E40R.(4) These MACs were calculated in an ambient medium of refractive index n = 1.51 (corresponding to PE) and using the optical constants of the “astrosilicates” from Li & Draine (2001).
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