511 KeV Line and Other Diffuse Emissions as a Trace of theDark Matter

摘要

In this talk I argue that dark matter in the form of dense matter/antimatternuggets could provide a natural and unified explanation for several distinctbands of diffuse radiation from the core of the galaxy spanning over 13 or-ders of magnitude in frequency. It includes: SPI/INTEGRAL observations of511 keV gamma rays; detection by the CHANDRA satellite of diffuse X-rayemission; COMPTEL observation of the flux of gamma rays in the 1-20 MeVrange; finally, the so-called "WMAP- haze" which is a diffuse microwave ex-cess observed from the core of our galaxy. If correct, our proposal identifiesthe nature of the dark matter, explains baryogenesis, and provides a meansto directly probe the matter distribution in our Galaxy by analyzing severaldifferent types of diffuse emissions.