Top: Hα maps of COS1638 AGNi A and B. From top to bottom: Total, narrow, and broad components. From left to right: Flux, velocity, and velocity dispersion. Solid (dashed) black contours mark the outflow region used to produce the outflow-integrated spectra of COS1638-A (COS1638-B). Bottom: Close-up on the Hβ+[O III] complex (left) and the Hα+[N II]+[S II] complex (right) of the continuum- and BLR-subtracted spectrum of COS1638 AGN A integrated over the S/N>3 mask of the broad [O III] emission at the position of AGN A (solid black line). Data and residuals are in black, total model is in dashed orange, single-line components are shown as dark to light purple. Component 1 corresponds to the narrow component; additional components add up to the broad component (component 2).