Dark Matter in the center of galaxies and galaxy clusters: ruling out the CDM scenario?

Abstract

This work is focused on the preliminary results of the observations of Hαrotation curves for some of the late type dwarf and LSB galaxies carried out at the TNG telescope. In light of the observational data and of the N-body simulations we have performed recently, we discuss some of the implications on the nature of the DM particles and the formation of the dark haloes.

Contributed Talk to: "Tracing Cosmic Evolution with Galaxy Clusters" (Sesto 2001), ASP Conference Series