Continuum maps of the Circinus nucleus at the eight frequencies used for the SED decomposition presented in Sect. 4.1. All maps were convolved to a beam size of 74.5 × 65.2 mas². We discern two emission components: free-free emission at the nucleus, which is visible in all bands, and dust emission, which is only visible in band 6, 7 and 9. We note that some extended emission is likely missing in the B6LB map because it has an MRS of 375 mas. This is likely also the reason for any discrepancy between this map and the one presented in Fig. 1. The synthesised beam sizes are drawn in the bottom left as filled ellipses, and the background rms values are shown in the bottom right in units of mJy/beam.