Velocity map of the system with ellipses marking the positions of the main regions (these are the same apertures as those used for the photometric analysis in Sect. 3.2 and shown over the NIRCam data in Fig. 2). The uncertainties on the velocity measurements (based on bootstrapping from the variance map of the IFU cube) are on average ∼1 km s⁻¹, and ≤4 km s⁻¹ in all pixels. The map is created combining the signal of all the four main lines observed (Angora et al., in prep., for details). The FWHM of the IFU PSF is given in the bottom-right corner.