MGCLS full-resolution (8.6″; yellow) and diffuse emission filtered 25″ resolution (blue) Stokes-I intensity image of a portion of the RXC J0520.7−1328 field, showing complex extended emission within the region. The corresponding synthesised beams are shown on the lower left by the filled yellow and blue ellipses, respectively. The colour scales are in square root scaling between 10−500 μJy beam⁻¹ (yellow) and 20−500 μJy beam⁻¹ (blue). The physical scale at the cluster redshift is indicated on the lower right, and the cross marks the NED cluster position. Smoothed archival Chandra 0.5−7 keV X-ray contours (levels: 3, 6, 12, 24 × 10⁻⁸ counts cm⁻² s⁻¹) are overlaid in white, with RXC J0520.7−1328 and its companion cluster 1WGA J0521.0−1333 labelled. Dashed green ellipses indicate the regions of diffuse emission, D1 to D4, identified in Macario et al. (2014). The full-resolution MGCLS image contains artefacts that radiate from the bright compact source in RXC J0520.7−1328.