Integrated intensity map of CH₃CN 12₃–11₃ emission (4.0–12.0 km s⁻¹) shown to the left. The contours represent the ALMA 1.3 mm continuum emission from Fig. 1. with levels of 3σ, 5σ, 7σ, 10σ, 30σ, and 70σ. The dashed box shows the field of view in the right panel. The central panel shows the same details as the left, but for CH₃¹³CN 12₁–11₁ emission. Gaussian centers from the uυ-domain fitting shown on the right. The colored circles (CH₃CN 12₃–11₃) and triangles (CH₃CN 12₇–11₇) show the positions from the uv-domain fitting, with the color indicating the velocity.