Median continuum in PSF-subtracted cube. The green coloured region corresponds to all islands of at least 5 contiguous spaxels with a mean continuum, measured over 3-4.2 μm, detected at the 1σ level. We compare it here to the contours of the initial non-PSF-subtracted quasar cube. We also indicate the location of the significant Hβ line emission envelope. The offset location of the continuum emission and its elliptical morphology indicate that it is likely not a PSF residual.