Integrated intensity of the J = 5−4 transition of SiO at different velocity ranges (indicated at the top of each panel). In some panels, the integrated intensity of the maps has been multiplied by a scale factor (indicated in the panels) to maintain the same color dynamics for all maps. The step in integrated intensity () is 20 K km s-1 from 25 to 305 K km s-1 and the minimum contours are 5 and 15 K km s-1. See text (Sect. 2) for main beam antenna temperature correction.
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