Position-velocity cut of SiO(5–4), H2S(22,0–21,1), CH3OH-E(5−1,4–4-22), and 13CH3OH–A(102,8–93,7) along the outflow A (PA = –40°). The position offsets are measured from the A1 position, positive towards northwest. The rms 1σ is 20 mJy beam-1. Contour levels range from 3σ by steps of 3σ for SiO and 13CH3OH–A, and from 3σ by steps of 10σ for H2S and CH3OH-E. Dashed vertical lines mark the position of the A1 and A2 YSOs, while the solid vertical line is for the average peak position of the typical hot-core tracers (see text). Solid horizontal line shows the systemic velocity (+111.0 km s-1).
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