Contribution of Massive Neutrino on Large Scale Structures

Abstract

Sizes and masses of the Neutrino Structures calculated with different combination of parameters involved has shown interesting variation with remarkable shifting of position of peak value. The peak position of (ξRH0/Resc) shifts from ξ = x/x0 = 0.847 to 1.632, where x = m/T. Accordingly, the peak of the mass of neutrino structures also shifts.Key words: Neutrino; Large scale structures; Free streaming; Jeans mass; Momentum distributionDOI: 10.3126/sw.v5i5.2646 Scientific World, Vol. 5, No. 5, July 2007 1-5

Spin1/2field and regularization in a de Sitter and radiation dominated universe

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