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28th of March 2015
Radio searches for particle dark matter in Local Group dSph galaxies
by Marco Regis (University of Torino and INFN, Italy)
Regis et al. (2014) investigate the presence of radio signals in dwarf spheroidal (dSph) galaxies induced by non-gravitational interactions of dark matter (DM) particles. - The image shows one of the fields observed with the Australia Telescope Compact Array (ATCA) on the left and how it would have looked like in presence of a bright DM signal (right). Although no extended emission has been detected, the work allows to set important constraints on the DM nature and, more in general, on the presence of non-thermal sources in dSph galaxies. The project paves the way for the SKA, which will be able to close in on the possibility that DM is in form of weakly interacting massive particles.

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