Neutrinos as Hot or Warm Dark Matter (Active + Sterile)

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CMB and LSS: the existence of relic neutrinos had an impact on theepoch of matter-radiation equality, their species and masses couldaffect the CMB anisotropies and large scale structures (Wong’s talk)Timeline of the Big Bang:Witness / ParticipantAt the time of recombination (t ~ 380 000 yrs):The CB contribution to the total energy density of the Universe todayrelativisticnon-relativistic
CB Must Be ThereToday’s matter & energy densities in the Universe (Dunkley et al 09;Komatsu et al 09; Nakamura et al 10): 5-year WMAP + CDM modelThe CMB (t ~ 380 000 years) is already measured todayIs it likely to detect the CB (t ~ 1 s) in the foreseeablefuture? ---- important to test the standard cosmology.
Page 1 and 2: Neutrinos as Hot or Warm Dark Matte
Page 3 and 4: Sub-eV or keV Neutrinos?A purely ph
Page 5: As T ~ a few MeV in the Universe, t
Page 9 and 10: ExampleSalient feature: the cross s
Page 11 and 12: Cosmic anti-Background?Overdensitie
Page 13 and 14: Hamann et al, arXiv:1006.5276; 1108
Page 15 and 16: OverdensitiesGravitational clusteri
Page 17 and 18: keV sterile Dark MatterThere is no
Page 19 and 20: keV sterile Dark MatterProduction:
Page 21 and 22: Detection in the LabThe same method
Page 23 and 24: Summary----- CB: a test of cosmolog

Neutrinos as Hot or Warm Dark Matter (Active + Sterile)

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