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Fig. 2.


Top row: 12CO first-moment maps – Left: blueshifted, vlsr = −1.2 − +3.6 km s−1 (color; black below 1.6 km s−1) and 4.5–4.8 km s−1 (solid outline). Dashed contours represent the continuum emission (4.3, 15.1, 26.5, 37.8, 49.2 mJy beam−1, peak 60.6 mJy beam−1). The beam size is . Right: redshifted, vlsr = 7.0 − 10.1 km s−1. Solid contours represent blueshifted intensity from panel c. Dashed contours and beam size are as in panel a. Bottom row: intensity maps – Left: blueshifted intensity (vlsr = −1.2 − +4.8 km s−1). Beam size is . Background rms ≈9.6 mJy beam−1 km s−1, peak flux = 0.39 Jy beam−1 km s−1. Right: redshifted intensity (vlsr = +7.0 − +11.4 km s−1). Background rms ≈12 mJy beam−1 km s−1, peak flux = 0.28 Jy beam−1 km s−1. Beam size is as in panel c, solid contours in panels c and d show the same as the dashed contours in panels a and b).

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