Optical and radio view of A3670 and its XRG. Top: Pan-STARSS optical (combined r, g, and i filters) image of A3670 with overlaid (reddish colours) composite band 4, C-band, X-band radio images of MRC 2011-298 (from Fig. 2). Bottom left: Zoom-in on the Pan-STARSS image with overlaid 9 GHz contours (starting from 64σ) indicating the two optical nuclei (‘A’ and ‘B’). Bottom middle and right: 700 MHz and 9 GHz images labelling the regions discussed in the text.