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Fig. 3


Channel map of merged N2H+ emission. Contours are plotted at 50 (dotted), 50, 100, 150, and 200 mJy beam-1. The velocity channel is indicated in the upper-left of each panel in units of km s-1, and the blue plus signs indicate the centres of the main regions. The synthesised beam in shown in the lower-left corner of each panel.

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