62 articles – 637 references  [version française]
 HAL: in2p3-00473682, version 1
 arXiv: 1001.4836
 Physical Review Letters 104 (2010) 091302
 Fermi LAT Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications
 For the Fermi-LAT collaboration(s)
 (2010-03-05)
 Dark matter (DM) particle annihilation or decay can produce monochromatic $\gamma$-rays readily distinguishable from astrophysical sources. $\gamma$-ray line limits from 30 GeV to 200 GeV obtained from 11 months of Fermi Large Area Space Telescope data from 20-300 GeV are presented using a selection based on requirements for a $\gamma$-ray line analysis, and integrated over most of the sky. We obtain $\gamma$-ray line flux upper limits in the range $0.6-4.5\times 10^{-9}\mathrm{cm}^{-2}\mathrm{s}^{-1}$, and give corresponding DM annihilation cross-section and decay lifetime limits. Theoretical implications are briefly discussed.
 Subject(s) : Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics