41 citations · 41 across the 2 of their papers we have counts for
10 papers
Cluster mass functions in the quintessential Universe
Ewa L. Lokas, Paul Bode, Yehuda Hoffman
We use -body simulations to measure mass functions in flat cosmological models with quintessence characterized by constant with , -2/3 and -1/2. The results are compar…
Simulations of the Local Universe
Stefan Gottloeber, Anatoly Klypin, Andrey Kravtsov +2
The theory of structure formation predicts that galaxies form within extended massive dark matter halos built from smaller pieces that collided and merged, resulting in the hierarc…
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…
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…
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…
Reconstruction of the Zone of Avoidance
Yehuda Hoffman
The uncovering of the large-scale structure that is hidden in the Zone of Avoidance is essential to our quest for the understanding of the dynamics of the nearby universe. Dedicate…