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Fig. 2

image

H.E.S.S. 99% CL upper limits on the differential flux (arrows), together with the Fermi-LAT spectra from Puppis A, as reported in Hewitt et al. (2012). Red, blue and green symbols correspond to Fermi-LAT and H.E.S.S. measurements for the whole SNR, the E and W hemisphere, respectively. The data points show the LAT fluxes and 1σ statistical and systematic errors, whilst the bow-tie areas define the 68% CL bands. The solid and dashed lines indicate the preferred γ-ray spectra for the exponential and sub-exponential cutoff models, respectively.

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