Fermi Large Area Telescope Observations of Pulsar Wind Nebulae

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LAT Observations of the Crab Pulsar and Nebula(Abdo et al., 2010, ApJ, 708, 1254)The following studieswere performed with8 months of data insurvey modeLight curve of the Crab Pulsar.Two cycle are shown.LATprofileabove 100MeVOff-pulse1.4 GHzradioprofileM.-H. Grondin, High-Energy Emission from Pulsars and their Systems, April 2010 8
LAT Observations of the Crab Pulsar and Nebula(Abdo et al., 2010, ApJ, 708, 1254)Spectral analysis of the nebula :– Performed in the off-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-off and variability can be observed, neither for thesynchrotron nor for the IC component with 8 month of data in surveymodeSpectral energy distributionof the Crab NebulaM.-H. Grondin, High-Energy Emission from Pulsars and their Systems, April 2010 9
Page 1 and 2: Fermi-Large Area TelescopeObservati
Page 3 and 4: CGRO-EGRET (1991-2000)Compton Gamma
Page 5 and 6: Fermi-LAT 1-year catalog(Abdo et al
Page 7: Earlier γ-ray observations of the
Page 11 and 12: LAT Observations of the Crab Pulsar
Page 13 and 14: The Vela Pulsar: Results from the F
Page 15 and 16: LAT Observations of Vela X (spectru
Page 17 and 18: The PWN in MSH 15-52young composite
Page 19 and 20: LAT Observations of the PWN in MSH
Page 21 and 22: The region of Westerlund 2• An ex
Page 23 and 24: A new PWN associated to PSR J1023-5
Page 25: Conclusions (II)• Population stud

Fermi Large Area Telescope Observations of Pulsar Wind Nebulae

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