2011/03/30 by Ernst Fischer, Fischer, Ernst
Physics and Astronomy · #FOS: Physical sciences #General Physics (physics.gen-ph) #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.1104.2525
8 pages
arxiv created 2011/03/30 · arxiv updated 2011/04/14
Observations of density profiles of galaxies and clusters constrain the properties of dark matter. Formation of stable halos by collisional fluids with very low mass particles appears as the most probable interpretation, while halos formed by high mass particles, left over from a hot big bang, can scarcely explain the observed density distributions. Detection methods of dark matter are discussed.