Fig. 8.

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Pixel-by-pixel maps at 25″ resolution of: the dust mass surface density, Σdust (top); small grain fraction, qAF (middle); and average interstellar radiation field, ⟨U⟩ (bottom), from the THEMIS fit. SPIRE 350 μm contours at [5, 15, 35, 55]×σ are overlaid in cyan. Insets show the corresponding uncertainty distributions and use the same colour-coding as in the maps.
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