Towards the Chalonge Meudon Workshop 2013. Highlights and Conclusions of
  the Chalonge Meudon workshop 2012: warm dark matter galaxy formation in
  agreement with observations
  Warm Dark Matter(WDM), considerably clarifies and simplifies galaxies and
galaxy formation in agreement with observations. WDM essentially works,
naturally reproducing the astronomical observations over all scales, small
(galactic) as well as large and cosmological scales.Evidence that CDM,
CDM+baryons and proposed tailored cures do not work in galaxies is staggering,
The Chalonge Meudon Workshop 2012 approached DM in a fourfold coherent way:
astronomical observations (galaxy and cluster properties, haloes, rotation
curves, density profiles, surface density), LambdaWDM N-body simulations, WDM
theory (Boltzmann-Vlasov evolution, halo mass functions, halo models, improved
perturbative approachs), quantum WDM fermions forming the observed cores, WDM
particle and nuclear physics (sterile neutrinos) and its experimental search. N
Amorisco, P Biermann, S Das, H J de Vega, A Kamada, E Ferri(MARE),I D
Karanchetsev, W Liao, M Lovell, M Papastergis, N G Sanchez, P Valageas,C
Watson, J Zavala,He Zhang present their Highlights.Inside galaxy cores, N-body
classical physics simulations are incorrect for WDM because of important
quantum effects at such scales.Quantum WDM calculations (Thomas-Fermi) provide
galaxy cores, galaxy masses, velocity dispersions and density profiles in
agreement with observations.Baryons (16% of DM) are expected to give a
correction to pure WDM results. The summary and conclusions by H. J. de Vega
and N. G. Sanchez stress that all evidences point to a DM particle mass around
2 keV. Peter Biermann in his live minutes concludes that a few keV sterile
neutrino is the most serious DM candidate. MARE -and hopefully KATRIN- could
provide a sterile neutrino signal.There is a formidable WDM work to perform
ahead of us, these highlights point research directions worthwhile to
pursue.Photos of the Workshop are included (Abridged).
