Six representative [O ii] and Lyα emission line profiles from our sample. The first, second, and third column include objects with confidence flag 3, 2, and 1, respectively. In each panel we show extracted spectra from the datacube in black and their corresponding variances in grey. The dashed vertical lines mark the observed wavelengths of the [O ii] or Lyα emission according to our determined redshift for that object (see Sect. 3.3). The dotted vertical lines mark the window used for flux integration by LSDCat (see Sect. 3.2). In each panel the object’s MUSE-Wide ID (cf. Sect. 4.1) is indicated in the top right corner.