Results of the spatially resolved spectral analysis. On the left-hand side, the 29 regions used for this study are shown, overlaid on the H.E.S.S. gamma-ray significance contours at 3, 5, 7, and 9σ coloured in black, red, orange, and green. The resulting photon index distribution is shown on the right-hand side. The ON region used for the full SNR spectrum is also shown as a grey circle, the vertical grey line bisects the ON region into the western and eastern half also used for the spectral analysis. The error bars on the right-hand side are 1σ statistical fit uncertainties, and the additional red error intervals indicated for each point correspond to the systematic uncertainty on the reconstructed photon index of ΔΓ_sys = 0.1, which is also shown as light red band around the forward folded SNR photon index.