In this talk I will review the multiepoch-multiscale-multiprobe scenario of spatially clustered and wide-mass distributed primordial black holes as the dominant contribution to the dark matter in the universe. I will give the present hints, possible constraints and future discovery opportunities.
Abstract
It is shown that the model of massive primordial black hole formation with log-normal
mass spectrum, suggested in 1993, is strongly supported by the recent astronomical
data on the the early, z=10, and contemporary universe. Basic features of the model
are described and the review of the astronomical observations is presented.
Self interacting dark matter (SIDM) is a long-standing candidate to alleviate the problems of collisionless cold dark matter (CDM) in cosmic structure formation at small scales. I will review the status of the small scale structure problems, and the feasibility of the SIDM solution in light of the current constraints on the DM self scattering cross section. I will present an overview of the...
