Continuum emission images. Left: the original image. The QSO has significant emission as well as the source “B” which has no [CII] emission and as Nguyen et al. (2020) mentioned it seems to be a source only seen in projection. The DSFG shows faint continuum emission. Right: the QSO and the source “B” have been fitted by a CASA 2D Gaussian and have been subtracted from the original image. Both panels have the contours over-plotted as solid (dashed) white contours indicating the positive (negative) significance levels at [2, 3, 4, 5, 8]σ. The synthesized beam is shown at the bottom-left as a white filled ellipse. North is up and east is to the left.