Comparison of the ALMA, VLT/SINFONI, and VLT/X-Shooter data (see also Lelli et al. 2018). Left: [C I] (2−1) (solid green) and [O III] λ5007 (dashed red) line profiles extracted from an aperture with a diameter of 1 arcsec, centered at the kinematic center. The He IIλ1640 (dash-dotted violet) line is adapted from Man et al. (2019). The velocities of [C I] (2−1), [O III] λ5007, and He IIλ1640 are relative to the redshift of [C I] (2−1) line (z = 2.5706 ± 0.0002). The CO (7−6) emission adjacent to [C I] (2−1) is marked with a dotted green line (not shifted in velocity). Right: [O III] velocity field (adapted from Nesvadba et al. 2017; Lelli et al. 2018) overlaid with the radio lobes from ATCA 18 GHz (black contours). The line-of-sight velocities are shown with respect to the redshift of [C I] (2−1). The kinematic major axes of the [C I] (2−1) and [O III] λ5007 lines are shown by the dashed green and the dash-dotted red lines, respectively. The FWHM of the SINFONI point-spread function (0.7 arcsec × 0.6 arcsec) is shown in the bottom left corner. The axis coordinates are relative to the kinematic center (white star).