A Universal Density Profile from Hierarchical Clustering

  title={A Universal Density Profile from Hierarchical Clustering},
  author={J. F. Vel{\'a}zquez Navarro and C. S. Frenk and Simon D. M. White},
We use high-resolution N-body simulations to study the equilibrium density profiles of dark matter halos in hierarchically clustering universes. We find that all such profiles have the same shape, independent of halo mass, of initial density fluctuation spectrum, and of the values of the cosmological parameters. Spherically averaged equilibrium profiles are well fit over two decades in radius by a simple formula originally proposed to describe the structure of galaxy clusters in a cold dark… CONTINUE READING
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MNRAS, in press (astro-ph 9510147)

E. Bertschinger
ApJS, • 1985
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MNRAS, submitted (astro-ph 9611065)

J. F. Navarro, S.D.M. White
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