Astrophysical signatures of light dark matter

Not so dark matter

Reality

The 511 keV line

Gamma rays

Heat from cold dark matter?

Conclusions



  • Summary
    • m ~ 1 - 30 MeV
    • Accelerator constraints
    • Relic density
    • 511 keV line
    • Gamma rays
    • Cosmic heater

  • What to take home
    • Dark matter may do more than just weigh
    • Light dark matter?

Yago Ascasibar (Astrophysikalisches Institut Potsdam)
XLI Rencontres de Moriond (La Thuile, 24 March 2006)