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Fig. 2.
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Flux upper limits from H.E.S.S. observations of the Circinus galaxy. This figure also shows a Fermi-LAT data bow tie and an 0.1–1 TeV data point from the Fermi-LAT catalog (Abdollahi et al. 2022). A model involving gamma-ray emitting lobes is shown for different values of a spectral break.
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