Hα emission line profiles extracted along the pseudo slits shown in the bottom left panel of Fig. 1 (top panels) alongside the fitted Gaussian models (centre panels) and the residuals (data – model, bottom panels). The left panels show the results for the eastern filament, whereas the right panels show the result for the western filament and the horizontal extend is the same as in Fig. 10. The x-axis is the cross dispersion axis in units of MUSE spaxels (1 spaxel = 0.2″) and the y-axis is the dispersion axis (1 pixel = 1.25 Å). The colour bar on the left corresponds to the two top panels, whereas the colour bar on the right corresponds to the bottom panel.