Chalonge-de Vega Meudon Workshop 2016

Warm Dark Matter (WDM) is hot topic in galaxies, cosmology and implies novelties in the astrophysical, cosmological particle and nuclear physics context.Warm Dark Matter Cosmology (ΛWDM) provides the same successfull large scale results and CMB results than Cold Dark Matter (ΛCDM) and succesfully agrees with the observations at the galactic and small scales. A Turning Point operated recently in the Dark Matter research: Warm Dark Matter (WDM) emerged impressively over Cold Dark Matter (CDM) as the leading Dark Matter candidate. WDM solves naturally the problems of CDM and CDM + baryons. ΛWDM provides the same large scale and CMB results than ΛCDM and agrees with the observations at the galactic and small scales. Warm Dark Matter (WDM) implies progresses in the astrophysical,cosmological, particle and nuclear physics context. This workshop addresses the last developpements in WDM, including its distribution function and equation of state, the quantum mechanical framework to galaxy structure reproducing in particular the observed galaxy cores and their sizes and the dwarf galaxies. This workshop puts together astrophysical, cosmological, particle and nuclear WDM, astronomical observations, theory and WDM analytical and numerical frameworks which reproduce the observations. The Workshop addresses as well the theorical and experimental search for the leading WDM particle candidate: keV sterile neutrinos. The recent impact of WDM astrophysics, its signatures and constraints with high redshift galaxies, clusters, cosmic recombinantion, 21 cm, with or for the JWST, HST, SKA, AstroH and gravitationnal lensing will be treated.