Total power radio continuum contours at 1.4 GHz from the WSRT image published in Shulevski et al. (2012) overlaid on the polarised intensity image produced at the same wavelength. Contours start at a 3σ level of 300 μJy beam⁻¹ and increase in powers of 1.5. The resolution of the total power image is × and the one from the polarised intensity image is × , which is shown in the bottom left corner of the figure.