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Imprints of the sterile neutrinos on CMB radiation

Jaroslaw Stasielak
Institute of Nuclear Physics, Polish Academy of Sciences

The sterile neutrino is a viable warm dark matter candidate. Photons, which are produced during its decay, enhance ionization of the IGM, leading to increases in the molecular and ionized fractions, which in turn can leave imprints on the CMB radiation. I will discuss this effect in the context of sterile neutrinos with a mass of a few KeV.

2012 April 24, 13:30

Centro de Astrofísica da Universidade do Porto (Classroom)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia