Corpus ID: 237532370

Analytical warm dark matter power spectrum on small scales

  title={Analytical warm dark matter power spectrum on small scales},
  author={G. Pordeus-da-Silva and Ronaldo C. Batista and L{\'e}o G. Medeiros},
Using the Reduced Relativistic Gas (RRG) model, we analytically determine the matter power spectrum for Warm Dark Matter (WDM) on small scales, k > 1 h/Mpc. The RRG is a simplified model for the ideal relativistic gas, but very accurate in the cosmological context. In another work, we have shown that, for typical allowed masses for dark matter particles, m > 5 keV, the higher order multipoles, ` > 2, in the Einstein-Boltzmann system of equations are negligible on scales k < 10 h/Mpc. Hence, we… Expand

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