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Fermi-LAT Observations of the Vela-X region

Abstract : The Vela supernova remnant is the closest SNR to contain a young active pulsar, PSR B0833-45. The remnant spans about 8deg in diameter and contains regions of nonthermal emission in the radio, X-ray and gamma-ray bands, including Vela X, a pulsar wind nebula (PWN) spanning a region of 2deg * 3deg south-southwest of the pulsar. With a center offset by about 40' from the pulsar, Vela X served as the first prototype for offset PWN as a result of SNR expansion into an inhomogeneous medium; it emits in the radio, X-ray, and TeV Gamma-ray bands. Using recent observations by Fermi-LAT, we are conducting a detailed study of the off-pulse emission in the region of the Vela pulsar. In this talk, we will describe the Fermi-LAT measurement of this region and discuss the origin of the detected gamma-rays.
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http://hal.in2p3.fr/in2p3-00485414
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M. Lemoine-Goumard, M.H. Grondin. Fermi-LAT Observations of the Vela-X region. 31st International Cosmic Ray Conference (ICRC 2009), Jul 2009, Lodz, Poland. ⟨in2p3-00485414⟩

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