Speaker
Nicolao Fornengo
(University of Torino and INFN/Torino)
Description
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 potentially very 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.
Author
Nicolao Fornengo
(University of Torino and INFN/Torino)
