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Table 5.

Energy-scaling factors ζi and resulting χ2-values before and after changing the energy-scale.

Data set Scaling factor ζi Statistical error σζ
() 68% c.l.
Fermi-LAT 1.00 Fixed 21.7 (25) 21.7 (25)
MAGIC 0.891 0.006 221.0 (14) 11.7 (13)
VERITAS 1.050 0.003 469.9 (12) 9.1 (11)
MAGIC (VLZA) 1.141 0.025 55.6 (7) 2.6 (6)
Tibet ASγ 0.918 0.017 22.8 (10) 6.4 (9)
LHAASO 0.964 0.006 41.0 (17) 11.6 (16)

Combined 832.0 (85) 63.1 (80)

Notes. Energy-scaling factors ζi for the VHE spectra are derived for the best-fitting model with (the corresponding best fit parameters Ψ are given in Table 4).

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