Radio – optical overlay images for the galaxy NGC4848. Background image is a three-colour grz image from the Legacy Surveys (Dey et al. 2019). Contour levels begin at 2.5 × rms and increase by a factor of three with each step. In the lower left we show the common FWHM beam size of 6.5″. In each panel we also overlay the galaxy disc aperture (dashed ellipse) and the apertures used to measure radio continuum flux densities along the tail (solid rectangles).