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Fig. 7


Hi-GAL 500 μm image (the coordinates are galactic coordinates) of the l = 59° field. Each number is the velocity of a source. The colours correspond to: black: sources most probably associated with Sh2-86 (2.1 kpc), red: near distance (~3 kpc), but not associated with Sh2-86, white: objects with negative velocity (no distance ambiguity,  ~13.5 kpc) or velocity close to 0 km s-1 (far distance favoured,  ~9.5 kpc), blue: objects with forbidden velocity; tangent distance adopted (~4.3 kpc), and green: far distance (~6 kpc). The black ellipses pointed out by arrows are the three infrared bubbles from Churchwell et al. (2006) discussed in the text.

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