Channel maps of SO 98−87 (top) and SO282,6−71,7 (bottom) at systemic, low (LV), intermediate (IV), and high (HV) velocities (panels from left to right). The green, blue, and red contours trace the emission at systemic velocity and over the labelled blue- and red-shifted velocity intervals (| V − Vsys |). The lowest contour of the emission at systemic velocity is shown in all panels. The first contour is at 5σ for SO and 3σ for SO2 with steps of 5σ (Vsys) and 20σ (LV, IV, HV) for SO and 3σ for SO2 (1σ ~ 3−4 mJy/beam/0.43 km s-1). The tilted black cross is centred at the source position and indicates the jet and the disk PA (PAjet = 22°, PAdisk = 112°). The ellipse in the bottom-left corner shows the beam HPBW of the line emission maps (, PA = 49°). The triangles indicate the emission peaks along the blue and red lobes.
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