The effect of massive neutrinos on the matter power spectrum

  title={The effect of massive neutrinos on the matter power spectrum},
  author={Shankar Agarwal and Hume A. Feldman},
  journal={Monthly Notices of the Royal Astronomical Society},
We investigate the impact of massive neutrinos on the distribution of matter in the semi-non-linear regime (0:1 < k < 0:6hMpc 1 ). We present a suite of large-scale N body simulations quantifying the scale dependent suppression of the total matter power spectrum, resulting from the free-streaming of massive neutrinos out of highdensity regions. Our simulations show a power suppression of 3:5 90 per cent at k 0:6hMpc 1 for total neutrino mass, m = 0:05 1:9 eV respectively. We also discuss the… 

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