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Fig. 5

image

Influence of grain shape for compact spherical (dotted lines), oblate (dashed lines), and prolate (solid lines) a-SilFe,FeS (left panels), a-C (middle panels), and a-C:H (right panels) grains with radius aV = 0.05, 0.1, and 1 μm plotted in black, blue, and fuchsia, respectively. Top bottom panels: Qabs(shape, λ), Qsca (shape, λ), κ(shape, λ), and the ratioof the latter to κ(sphere, λ) for a compact spherical grain with same mass.

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