Left: CO 3–2 integrated intensity image where emission close to systemic velocity (1700−1760 km s-1) is shown in greyscale. The high-velocity (±80 to ±150 km s-1) emission from the molecular jet is shown in contours (red and blue show the velocity reversals). The CO 3–2 beam () is shown as a grey ellipse in the bottom left corner (Fig. 2 in Aalto et al. 2016). Centre: the high-velocity (1500 to 1670 and 1825 to 2000 km s-1) CO 6−5 emission (see Sect. 5). The contours are 0.2 × (1, 3, 5, 7, 9) Jy km s-1. The beam is 15 times smaller (by surface) than the CO 3–2 beam. The top dashed line indicates the PA of the rotating disk of the lower velocity gas (the brightest emission) shown in the right panel. The lower dashed line shows the PA of the nuclear high-velocity gas. Right: velocity field of the brightest emission (see Sect. 3.1.2) which is close to systemic velocities. The colour scale ranges from 1690 to 1790 km s-1 and the contours start at 1690 km s-1 with steps of 10 km s-1. The top dashed line indicates the PA of the rotating disk of the lower velocity gas (the brightest emission) and the lower dashed line shows the PA of the nuclear high-velocity gas (from the centre panel).
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