Fermi Large Area Telescope Observations of Pulsar Wind Nebulae
Fermi Large Area Telescope Observations of Pulsar Wind Nebulae
Fermi Large Area Telescope Observations of Pulsar Wind Nebulae
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LAT <strong>Observations</strong> <strong>of</strong> the Crab <strong>Pulsar</strong> and Nebula(Abdo et al., 2010, ApJ, 708, 1254)Spectral analysis <strong>of</strong> the nebula :– Performed in the <strong>of</strong>f-pulse window– Synchrotron and inverse Compton (IC) components are resolved :Spectral index (sync) = (3.99 ± 0.12 ± 0.08)Spectral index (IC) = (1.64 ± 0.05 ± 0.07)Flux above 100 MeV = (9.8 ± 0.7 ± 1.0)x10 -7 cm -2 s -1– No significant cut-<strong>of</strong>f and variability can be observed, neither for thesynchrotron nor for the IC component with 8 month <strong>of</strong> data in surveymodeSpectral energy distribution<strong>of</strong> the Crab NebulaM.-H. Grondin, High-Energy Emission from <strong>Pulsar</strong>s and their Systems, April 2010 9