XMM-Newton EPIC spectra of the inner circular region (top) and outer shell (bottom) of SNR J0456–6533. We plot the source spectrum (MOS1: black, MOS2: red, pn: blue) and the best-fit models. The thick solid lines show the contribution of the VNEI source emission component, which represents the emission of the SNR. All additional lines represent various background components as described in Sect. 7.