Flux maps of the [Oiii]_nar component for LBQS0109 (top) and for HB8903 (bottom) obtained from the fit described in the text. The AGN position is identified with a red diamond. The blue contours trace the [Oiii]λ5007 blue-shifted emission cone shown in Fig. 3. The contours represent the velocity –300, –275 and –250 km s^-1 for LBQS0109, and –125, –100 and –50 km s^-1 for HB8903. The [Oiii]_nar emissions are not symmetrically distributed and are anti-correlated with the outflow region. Black squares indicate the nine regions where we extracted the corresponding spectra shown in the right panels of Fig. 1.