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Fig. 2

image

Schematic representation of the field. The black contours correspond to the regions where AV > 2.5 mag (Planck Collaboration XI 2014), while the blue contours show the Hα structures (Finkbeiner 2003) Barnard’s loop and the λ Ori bubble. The positions of some known groups and stars are indicated with black circles and red stars, respectively.

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