Fig. 4
H i column density contours at (2.5, 3.5, 5.5, 8) ×1019 atoms cm-2 overlaid on a WIYN/pODI color image. Upper left panel: full system, upper right: AGC 226067, lower left: AGC 229490 (H i-only), and lower right: AGC 229491 (optical only). H i centroids are marked with crosses and optical centroids with circles. The yellow circles indicate the apertures used for photometry.
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