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Fig. 3

image

Position-velocity diagrams with molecular ion HCO+ along the straight line (from the upper to lower) of each IRDC in Fig. 1. The numbers indicate the core positions corresponding to those in Fig. 1. The outer contour levels are above 3σ (σ ~ 0.16 K). The unit of each color bar is in K.

This figure is made of several images, please see below:

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