Integrated H-band spectrum of cid_1057, extracted from a SINFONI datacube with a radius aperture of 0.25″, after subtracting continuum emission that was modelled with a first-degree polynomial. Same as in Fig. 2. Three Gaussian components are used to properly model the [O III] line profile: One component was used for the systemic narrow line emission (light blue), and two components were used for the blue and red wings detected in [O III] (different greens).