Hα line of sight-velocity map (left) as in Fig. 6. On the right hand side, we display the red grating spectra of the regions highlighted by black boxes in the velocity map. The different components of the attempted line fits are plotted in the spectra as well. In red, the overall fit is displayed. The third (and left-most) fitting component in the [N ii] λ6585 emission line is the fit on the sky line contamination. The fitting results are reported in Table 1. The vertical red lines denote the rest wavelength of the emission line.