Velocity-integrated maps (upper panels) and spectra (lower panels) of the candidate line emitters detected in band 3. In the upper-left panel the CO emission from the QSO host galaxy has been fitted and subtracted (the cross indicates the phase center). The spectra were extracted using masks enclosing the ≥2σ level on the velocity-integrated maps. Contour levels are −4, −3, −2, −1, 1, 2, 3, 4 × σ, σ = 0.035, 0.059 mJy beam−1 in the upper-left and upper-right panels, respectively.
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