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Fig. 2

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Integrated intensity map of the CH3CN J=12-11 with K=0, 3, and 7. The integration range is 4–12 km s−1. The contours represent the 1.3 mm continuum emission at levels of 3, 5, 10, 20, 50, 150, and 300σ with σ =0.2 K. The blue cross markers indicate the locations of VLA4A and VLA4B from the continuum emission.
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