Top panel: spectrum of the GRB 111005A host added over the entire extend of the slit (Fig. 2). Some emission lines are marked, and the bottom panels show their 2D spectra. The horizontal axis corresponds to the wavelengths and the vertical axis to the position along the slit (400 pixels, i.e. 8011). The rotation curve is clearly visible with each line. The drop at ∼5300 Å is due to the dichroic gap between the blue and red arms of the ISIS.