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This article has an erratum: [https://doi.org/10.1051/0004-6361/201629711e]


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
MAC11 171.4 186.4 38.1 45.3 10.4 14.3 3.2 6.03 2.2 4.8
MAC22 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.

(1)

MAC1 represents the MAC averaged over the four samples X35, X40, X50A and X50B, see Sect. 5.1.

(2)

MAC2 represents the MAC averaged over the sample X35 and the mean of the X50A and X50B samples, see Sect. 5.1.

(3)

These MAC are calculated using the optical constants of the “astrosilicates” from Li & Draine (2001), see Sect. 5.1.

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