IC 883 contour images at a median central frequency of 6.9 GHz obtained with e-MERLIN (left), and at 5 GHz with the e-EVN (right), in observations carried out in March 2011. The rms noise in the two images is 44 and 66  μJy/beam, respectively, and the convolving beam in each case is indicated in the upper left corner of the maps. Dashed contours represent  − 3σ levels. Note that the brightest component on e-MERLIN scales is dominated by a compact source seen on mas scales with the e-EVN. The crosses in the left panel indicate the coordinates and positional errors of SNe 2010cu and 2011hi, according to the values reported in Kankare et al. (2012).