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Fig. 3.


Comparison between the GALEX FUV data (top panel) and the dust optical depth (τ850 μm, bottom panel), derived from the dust thermal emission measured by Planck at 850 μm. Regions S.1 and S.2 are identified in both FUV and dust emission, whereas features A.1 and A.2 are only seen in FUV emission.

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