Top row: ¹²CO first-moment maps – Left: blueshifted, v_lsr = −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, v_lsr = 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 (v_lsr = −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 (v_lsr = +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).