Constraints on dark matter and the shape of the Milky Way dark halo from the 511-keV line

  title={Constraints on dark matter and the shape of the Milky Way dark halo from the 511-keV line},
  author={Y. Ascasibar and P. Jean and C. Boehm and J. K. H. CfA and Usa and C. D. S. D. Rayonnements and France. and Lapth UMR-5108 and Cern and Switzerland.},
  journal={Monthly Notices of the Royal Astronomical Society},
About one year ago, it was speculated that decaying or annihilating light dark matter (LDM) particles could explain the flux and extension of the 511-keV line emission in the Galactic Centre. Here, we present a thorough comparison between theoretical expectations of the Galactic positron distribution within the LDM scenario and observational data from INTEGRAL/SPI. Unlike previous analyses, there is now enough statistical evidence to put tight constraints on the shape of the dark matter (DM… Expand

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