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The Astrophysical Journal 756 (2012) 5
Search for Spatially Extended Fermi 1 -LAT Sources Using Two 2 Years of Data
J. Lande1, M. Ackermann, A. Allafort, J. Ballet2, K. Bechtol, T. H. Burnett, J. Cohen-Tanugi3, A. Drlica-Wagner, S. Funk, F. Giordano, M.-H. Grondin, M. Kerr, M. Lemoine-Goumard4

Spatial extension is an important characteristic for correctly associating γ-rayemitting sources with their counterparts at other wavelengths and for obtaining an unbiased model of their spectra. We present a new method for quantifying the spatial extension of sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi ). We perform a series of Monte Carlo simulations to validate this tool and calculate
1:  IRAP - Institut de recherche en astrophysique et planétologie
2:  AIM - UMR 7158 - Astrophysique Interactions Multi-échelles
3:  LUPM - Laboratoire Univers et Particules de Montpellier
4:  CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
Physics/Astrophysics/High Energy Astrophysical Phenomena

Sciences of the Universe/Astrophysics/High Energy Astrophysical Phenomena
catalogs - gamma rays: general - ISM: supernova remnants - methods: statistical Online-only material: color figures