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The 2009 Fermi Symposium

Fermi-LAT Observations of the Vela X Region

Marianne Lemoine-Goumard


The Vela supernova remnant is the closest SNR to contain an active pulsar, PSR B0833-45. The remnant spans about 8° in diameter and contains regions of non-thermal emission in the radio, X-ray and gamma-ray bands, including Vela X, a pulsar wind nebula spanning a region of 2° x 3° south of the pulsar. Using recent observations by Fermi-LAT, we have conducted a detailed study of the off-pulse emission in the region of the Vela pulsar. We will describe the Fermi-LAT measurement of this region and discuss the origin of the extended emission coincident with Vela X as well as the significant signal around the SNR Puppis A.