Fig. 9.

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Maps of emission line ratios that trace gas metallicity throughout the GS_4891 system. The data have been spatially binned to have a S/N ≥ 3 in the emission lines involved. The black cross indicates the centroid of continuum emission, whereas dashed contours in the right panel correspond to the Hα emission. Black boxes and circles highlight the individual systems identified in Sect. 3.1.
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