MUSE [O III]line map. The black contour indicates the isophotal level in the rest-frame 7800–8800 Å. Left: velocity shift of the component with the highest FWHM, using the systemic redshift of object 3 as rest-frame reference. The velocity shift pattern indicates the existence of a large-scale disklike structure in UGC 2369S with a maximum line-of-sight velocity on the order of 100–200 km s⁻¹. Right: velocity dispersion measured from the [O III]5008 line. If there are multiple components with S/N > 1, we show the FWHM of the broad component. The green circle indicates the assumed radius of the outflowing gas shell (Section 4.4). As seen from the velocity dispersion map, gas kinematics get increasingly turbulent around object 3.