Image of the LAB obtained by addition of the successive frames from 4950 Å to 4990 Å. The signal of the QSO has been removed, as explained in the text, and the position of the QSO is shown by the green dot. The red curves are isophotes spanning SBs from 30 × 10-20 erg s-1 cm-2 spaxel-1 to 200 × 10-20 erg s-1 cm-2 spaxel-1, or 7.5 × 10-18 erg s-1 cm-2 arcsec-1 to 5 × 10-17 erg s-1 cm-2 arcsec-1. The outermost isophote corresponds to S/N ~ 1.8, while the inner corresponds to S/N ~ 12 per spaxel. There is a slight offset of the QSO position by about 0.4′′ with respect to the isophotal center of the blob. The relative coordinates are defined with respect to the field center.
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