Fig. 1.

Geminga light curves measured by Fermi-LAT (panels a and b), and by MAGIC (panel c). For clarity, two rotation cycles are shown. The green-shaded regions highlight the phase intervals corresponding to the P1 and P2 emission, obtained from the fits to Fermi-LAT data above 5 GeV and 15 GeV, respectively. The phase region from which the background is estimated is shown by the grey band. These signal regions were later applied to the analysis of MAGIC data. P2 is detected with MAGIC at a significance level of 6.25σ. No significant signal is detected from P1 in the MAGIC energy range.
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