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SNR mask + radio PWN & 696.4 & 4 & 26.1\

Figure \[fig:TSmap\_PWN\] (left) depicts the 1° $\times$ 1° residual TS map from 1 to 300 GeV obtained by fixing the spectral parameters of the radio PWN and the nearest point source to their best-fit values. The TS map tests a putative point source. It shows qualitatively where there is missing signal, and extended emission can only be more significant than the peak of the TS map. The maximum TS value of the map is TS $\approx$ 60 indicating that this residual emission is clearly significant. The radio template of the PWN is thus not sufficient to describe the data. This confirms our previous results in the Section \[sec:E\_dpd\_morpho\], that show that the emission below 3 GeV lies outside of the radio contours of the PWN.

To model the contribution of an additional component that seems to give rise to the low-energy part, we test several templates using first a simple disk component and then physically motivated templates (derived from the radio map of the SNR). We first use the `pointlike` framework to find the best position and extension of an additional source, described by a disk, when the 