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Fig. 7


Absorption efficiencies (s =    0.1 μm) for the dust species used to model IRS spectra (except carbon) in the range 0.3–40 μm. Top row shows absorption efficiencies for amorphous dust grains, bottom row shows Qabs values for crystalline dust grains. With the exception of the first two panels, dotted, solid and dashed lines represent absorption efficiencies mixed with volume fractions of 1, 5 and 20% carbon, respectively.

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