Abstract
Several independent observations of the galactic core suggest hitherto unexplained sourcesof energy. We suggest that dark matter in the form of dense antimatter nuggets couldprovide a natural site for electron and proton annihilation, providing 511 keV photons,gamma rays, and diffuse keV x-ray radiation. We show that identifying dark matter asantimatter nuggets is consistent with the observed emissions, and we make definitepredictions about their spectrum and morphology. If correct, our proposal not onlyidentifies dark matter and explains baryogenesis, but also allows x-ray observations todirectly probe the matter distribution in our galaxy.
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