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Fig. 4.

image

Images of the molecular emission and absorption lines detected in HerBS-89a, compared to the underlying continuum (natural weighting; shown as contours with 10σ spacing) extracted in the respective side-band where each molecular line was detected (for each image the continuum has been subtracted from the line emission). The three upper rows display the high-angular resolution data, whereas the bottom row shows the lower-angular resolution images. Upper right panel: combined 12CO(9 − 8) and H2O(202 − 111) image that enhances the low-level line emission, in particular along the western arc of the partial Einstein ring. Right panel in the second row: combined map of OH+ ((11 − 01) and (12 − 01)) absorption lines. The synthesized beam is shown in the lower left corner of each of the images.

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