Clockwise starting in the upper left panel: HST F160W image including the galaxy 823 in the north-west upper part of the image, object 13 in the south part and another galaxy at slightly lower redshift in the north-east upper part of the image, with overplotted [OII] EL map; spatially resolved [OII] EL map; spatially resolved [OII] velocity dispersion map; spatially resolved [OII] velocity map. The white background corresponds to spaxels with S/N_[OII] < 4.