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Fig. 4


Extinction maps for l = 30° (top) and l = 59° (bottom) fields (Bontemps, priv. comm.). Numbers are 13CO velocities of the extinction features at the position of the number or for the delimited areas. The extinction range from 4.3 mag (white pixels) to  ≥ 32.3 mag (black pixels) for the l = 30° field and from 2 mag (white pixels) to 15 mag (black pixels) for the l = 59° field.

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