Fig. 4
Overview of continuum-subtracted PACS spectra for selected lines. These are not corrected for the PSF. H2O, CO and OH lines are marked in blue, red and cyan, respectively, with the [O i] marked in green. The y-axis of each spectrum for all lines except [O i] goes from 0 to 5 Jy, with the brightest sources scaled down by the factor indicated in red below the source name. The [O i] spectra are scaled separately by a factor between 0.05 and 1.
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