Fig. 2
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Differential sensitivity towards the observation of extended sources by: (a) ASTRI, (b) CTA-N, (c) CTA-S, and (d) LHAASO. The exposure time adopted is 50 h for IACTs and 1 year for LHAASO. The source considered has a uniform disk-like morphology, whose angular radius is indicated in the legend, valid for all panels. The dotted line represents the point-like source sensitivity.
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