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The Universal Equilibrium of CDM Halos: Making Tracks on the Cosmic Virial Plane
Ilian T. Iliev, Paul R. Shapiro
Dark-matter halos are the scaffolding around which galaxies and clusters are built. They form when the gravitational instability of primordial density fluctuations causes regions w…
The Central Mass and Phase-Space Densities of Dark Matter Halos: Cosmological Implications
Paul R. Shapiro, Ilian T. Iliev
Current data suggest that the central mass densities and phase-space densities of cosmological halos in the present universe are correlated with their velo…
The Equilibrium Structure of Cosmological Halos
Ilian T. Iliev, Paul R. Shapiro
We have derived an analytical model for the postcollapse equilibrium structure of cosmological halos as nonsingular truncated isothermal spheres (TIS) and compared this model with…
The Postcollapse Equilibrium Structure of Cosmological Haloes in a Low-Density Universe
Ilian T. Iliev, Paul R. Shapiro
An analytical model is presented for the postcollapse equilibrium structure of virialized objects which condense out of a low-density cosmological background universe, either matte…