Position-velocity diagrams along the four routes shown in Fig. 4. a) The contours start at 0.6 K and increase in steps of 0.5 K (1σ ~ 0.15–0.16 K). The red ellipse (with a velocity radius of ~4 km s-1) shows a fitting toward the curve-shaped morphology seen in the southeast cloud (suggesting gas expansion), while the yellow lines show the velocity broadenings seen in the stream-like structure (suggesting shocked emission). b) The contours start at 0.5 K and increase in steps of 0.5 K (1σ ~ 0.15 K). The red ellipse (velocity radius of ~3.2 km s-1) and blue ellipse (velocity radius of ~3.8 km s-1) show the fitting toward the curve-shaped morphologies seen in the northeast cloud and inner rim, respectively. c) The contours start at 0.5 K and 1.0 K, and then increase in steps of 1.0 K (1σ ~ 0.15 K). The velocity radius of the red ellipse is ~3.3 km s-1. d) The contours start at 0.5 K and increase in steps of 0.5 K (1σ ~ 0.16 K). The velocity radius of the red ellipse is ~3.2 km s-1.
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