41 citations · 41 across the 2 of their papers we have counts for
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astro-ph2001
Shaping the central structure in CDM halos
Amr El-Zant, Isaac Shlosman, Yehuda Hoffman
Coupling the dark matter (DM) and baryonic components in galaxies via dynamical friction (by allowing the latter to be clumpy) leads to energy input into the DM. The resulting expa…
astro-ph2001
Nonlinear evolution of spherical perturbation in a non-flat Universe with cosmological constant
Ewa L. Lokas, Yehuda Hoffman
We generalize the spherical collapse model for the formation of bound objects to apply in a Universe with arbitrary positive cosmological constant. We calculate the critical condit…
astro-ph2001
The Large-Scale Tidal Velocity Field
Y. Hoffman, A. Eldar, S. Zaroubi +1
We present a method for decomposing the cosmological velocity field in a given volume into its divergent component due to the density fluctuations inside the volume, and its tidal…