Heavy sterile neutrinos: Bounds from big bang nucleosynthesis and SN1987A

Cosmological and astrophysical effects of heavy (10 - 200 MeV) sterile Dirac neutrinos, mixed with the active ones, are considered. The bounds on mass and mixing angle from both supernovae and big-bang nucleosynthesis are presented.

14.60.St
26.50.+x
95.30.Cq
neutrino: sterile
neutrino: heavy
cosmological model
supernova
light nucleus: production
neutrino: mass
neutrino: mixing angle

References(19)

Figures(0)

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