articleThe Astrophysical Journal Supplement SeriesMar 28, 2012BRONZE OA

FERMI LARGE AREA TELESCOPE SECOND SOURCE CATALOG

SLAC National Accelerator Laboratory · Kavli Institute for Particle Astrophysics and Cosmology · +83 more institutions

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Abstract

We present the second catalog of high-energy γ-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi), derived from data taken during the first 24months of the science phase of the mission, which began on 2008 August 4. Source detection is based on the average flux over the 24month period. The second Fermi-LAT catalog (2FGL) includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and spectral fits in terms of power-law, exponentially cutoff power-law, or log-normal forms. Also included are flux measurements in five energy bands and light curves on monthly intervals for each source. Twelve…

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