Detection of extended γ-ray emission around the Geminga pulsar with H.E.S.S.

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Table 2

Li & Ma significance for γ-ray emission within a 1° radius around the Geminga pulsar obtained with different background methods and datasets.

Dataset	Background method	σ in 1°	Cut level
2006–08	Ring	9σ	std
2006–08	On-Off	6.6σ	hard
2019	Field-of-View	9.8σ	hard
2019	On-Off(1)	9.6σ	hard
2019	On-Off(2)	11.6σ	hard

Notes. For the Field-of-View background method, the Cash statistic was used to evaluate the significance instead. The level of selection cuts applied (std or hard) is also indicated.

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