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Fig. 4.

Fig. 4. Refer to the following caption and surrounding text.

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Velocity maps of quiescent and outflowing gas in the cold molecular, ionized and neutral gas phases. Top row: Maps of v50 for the quiescent CO(1-0) emission (a), blueshifted outflowing (b), and redshifted outflowing (c) gas. The cyan-and-blue (magenta-and-red) contours show the integrated intensity of emission from gas with velocities below –150 km/s (above 150 km/s) relative to the systemic velocity. The first two contour levels correspond to the 3σ and 5σ significance levels and every following step is doubled. The dotted lines in the outflow panels show the borders according to which bins are associated with the SE and NW nuclei when calculating total outflow properties. Bottom row: Velocity maps based on MUSE data. Quiescent ionized gas traced by Hα (d), and outflowing ionized gas traced by Hα (e) and by [OIII]λ5007 emission (f). Panel (g) shows the best-fit velocity map of the neutral outflowing gas traced by NaID absorption. The black contours show the stellar continuum emission integrated over the spectral range. We do not show the quiescent component traced by [OIII]λ5007, as kinematics are tied between this line and Hα in the fit and the quiescent component is detected in every bin, so that this map would be identical to that of quiescent Hα.

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