Fig. 8.

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(a) Cumulative events per day vs. energy for each sector of G 227-22. Between 2 and 4 events per day are detected with energies ≥ 1031 erg. (b) Amplitude vs. τ for events in G 227-22. The colored horizontal lines indicate the value of 3σ used to discriminate events from noise, while the gray oblique lines represent isoenergetic lines.
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