Abstract
High energy astrophysical γ-rays and neutrinos can be produced both by the annihilation and possible slow decay of dark matter particles. We discuss the fluxes and spectra of such secondaries produced by dark matter particles in the universe and their observability in competition with other astrophysical γ-ray signals and with atmospheric neutrinos. To do this, we work within the assumption that the dark matter particles are neutralinos with are the lightest supersymmetric particles (LSPs) predicted by supersymmetry theories.
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