383 citations · 9k across the 157 of their papers we have counts for
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Constrained Simulations of the Real Universe: II. Observational Signatures of Intergalactic Gas in the Local Supercluster Region
Andrey V. Kravtsov, Anatoly A. Klypin, Yehuda Hoffman
We present results of gasdynamics+N-body constrained cosmological simulations of the Local Supercluster region (LSC; about 30/h Mpc around the Virgo cluster), which closely mimic t…
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…
Constrained Simulations of the Real Universe: the Local Supercluster
Anatoly Klypin, Yehuda Hoffman, Andrey Kravtsov +1
We present cosmological simulations which closely mimic the real Universe within 100Mpc of the Local Group. The simulations, called Constrained Simulations, reproduce the large-sca…
Testing Tidal-Torque Theory: II. Alignment of Inertia and Shear and the Characteristics of Proto-haloes
Cristiano Porciani, Avishai Dekel, Yehuda Hoffman
We investigate the cross-talk between the two key components of tidal-torque theory, the inertia (I) and shear (T) tensors, using a cosmological N-body simulation with thousands of…
Testing Tidal-Torque Theory: I. Spin Amplitude and Direction
Cristiano Porciani, Avishai Dekel, Yehuda Hoffman
We evaluate the success of linear tidal-torque theory (TTT) in predicting galactic-halo spin using a cosmological N-body simulation with thousands of well-resolved haloes. The prot…