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Table 2.

Best-fit parameters of synchrotron and IC emission models of the Crab Nebula derived from Fermi-LAT data.

N0 E0 Γ or α β
(10−7 MeV−1 cm−2 s−1) (MeV)
Synchrotron 2.47 ± 0.06 50.6 3.638 ± 0.024
IC (full energy range) (4.75 ± 0.10)×10−6 104 1.762 ± 0.012 0.053 ± 0.006
IC (E ≥ 1 GeV) (4.93 ± 0.11)×10−6 104 1.768 ± 0.013 0.054 ± 0.008
IC (E ≥ 1 GeV, GAMMAPY) (4.88 ± 0.11)×10−6 104 1.763 ± 0.013 0.056 ± 0.008

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