Theory Group Seminars

Looking to dark matter through gamma rays anisotropies

by Nicolao Fornengo (University of Torino and INFN)

Thursday, 27 April 2017 from to (Europe/Rome)
at INFN, building C ( 131 )
Abstract:    Anisotropies in the extragalactic electromagnetic emission originated from dark
matter represent an emerging tool in the quest for a particle dark matter
signal. These anisotropies are due to the cumulative emission from unresolved
dark matter structures, which are present at any scale: galaxy clusters,
individual galaxies, subhalos inside galaxies. The same structures can be probed
by gravitational tracers of the dark matter distribution in the Universe: this
is obtained by large-scale-structure surveys, but in the future a good wealth of
additional and complementary information will be available from weak lensing
surveys. The study of gamma-rays anisotropies and the cross-correlation between
the dark matter signal and gravitational tracers offer a novel and powerful
opportunity to probe the particle physics nature of dark matter. The talk will
introduce details and features of gamma-rays anisotropies and give perspectives
of the cross-correlation approach.