Point source & 238.167 $\pm$ 0.009 & $-$56.181 $\pm$ 0.008 & — & — & 689.5 & —\

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Disk & 238.170 $\pm$ 0.012 & $-$56.152 $\pm$ 0.012 & 0.266 $\pm$ 0.012 & 0.218 $\pm$ 0.010 & 866.5 & 177.0\

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Gaussian & 238.157 $\pm$ 0.013 & $-$56.166 $\pm$ 0.012 & 0.134 $\pm$ 0.009 & 0.202 $\pm$ 0.014 & 863.4 & 173.9\

![image](Best_fitted_Gaussian_and_Disk_300MeV_300GeV-crop.pdf){width="40.00000%"} ![image](Best_Fitted_Gaussians_5bands_new_version-crop.pdf){width="40.00000%"}

### Energy-dependent morphology\[sec:E\_dpd\_morpho\]

Although the $\gamma$-ray emission can be adequately described with a one-component model, either a disk or a 2D-symmetric Gaussian, this stands in slight tension to the discovery of a hard point-like $\gamma$-ray source above 50 GeV [@2FHL] at the location of the PWN, clearly displaced from the center of the SNR shell. To investigate the morphology in more detail, we divide the data into five logarithmically spaced energy bins from 300 MeV to 300 GeV that we subsequently fit individually with `pointlike` using a 2D-symmetric Gaussian. Because the PSF width depends strongly on energy up to $\sim$ 10 GeV, and our energy bins are quite broad (half a decade), we need to adopt a specific spectral model for the source. We describe it with a power law with free spectral index. The normalizations 