Massive Neutrinos and Galaxy Formation

Details Massive Neutrinos and Galaxy Formation Massive Neutrinos and Galaxy Formation

1994-12-19

arxiv.org/abs/astro-ph/9412068v1

Astronomy and Astrophysics

Astrophysics

5 pages including 3 figures, uuencoded compressed postscript. To appear in the Proceedings of the 5th Annual Astrophysics Conf

Scientific paper

10.1063/1.48367

We report the most recent results from high-resolution numerical simulations of structure formation in two flat cold+hot dark matter models with neutrino mass densities $\onu=0.2$ and 0.3. We find that structure forms too late in all CDM+HDM models with $\onu>0.2$ to account for the amount of dense neutral gas in high-redshift damped Lyman-$\alpha$ systems. The $\onu=0.2$ model at $z\approx0$ provides a better match to observations than the pure CDM model.

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