Maps of the emission-line regions surrounding NDWFS J1425+3254 after the quasar emission has been subtracted. From left to right, the panels show the Hβ, [O III] λ 5007, Hα, and [N II] λ 6584 lines, with the upper panels showing the flux in each spaxel and the lower panels showing their S/N, according to the colour bars at the right of each row. The [O III] λ 5007 and [N II] λ 6584 fluxes are from fits with the doublet flux ratios constrained (Table 3 note). The location of the quasar is marked as a black cross, and the emission-line region apertures from Figure 1 are marked in green.