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.