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Table 1.

H.E.S.S. data and analysis results.

Data set name On (counts) Off (counts) Excess (counts)
A 1242 44 308 277
B 928 30 850 245
Combined 2170 75 158 522

Notes. The first column represents the data set. The second and third columns show the number of signal + background events around the source position, and background events from the off-source region, respectively. The fourth column shows the excess in γ rays. The background normalisation (α) is ≈ 0.022.

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