This figure shows the integrated intensity map of CH₃OH over the blue-shifted velocity range. The red background represents the CH₃OH integrated intensity, overlaid with SiO (2–1) emission (black contours) and C¹⁸O (1–0) emission (gray contours). The integrated velocity ranges from 43.8 to 44.5 km s⁻¹, which represents the blue-shifted gas. SiO black contour levels are 21 (3σ), 210, 630, 1050, and 2300 (peak value) mJy beam⁻¹ km s⁻¹. The C¹⁸O gray contour levels are 0.738, 1.107, 1.476, and 1.738 K km s⁻¹ (peak value). The blue contours display 610 MHz emission at 1.1 (5σ) and 1.54 (7σ) mJy beam⁻¹ from Paredes et al. (2014). Green crosses mark the locations of the identified cores. Green dashed and dotted lines indicated the arc-like structures. The beam size is displayed in the lower-right corner.