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Spin Profile of Galactic Halos and Disk Formation
A. Dekel, J. S. Bullock, C. Porciani +4
We summarize recent developments in the study of the origin of halo spin profiles and preliminary implications on disk formation. The specific angular-momentum distributions within…
Origin and Destiny of Dark Matter Halos: Cosmological Matter Exchange and Metal Enrichment
Tsafrir S. Kolatt, James S. Bullock, Avishai Dekel +4
[Abridged] We analyze the exchange of dark matter between halos, subhalos, and their environments in a high-resolution cosmological N-body simulation of a Lambda CDM cosmology. At…
Interaction rates of dark-matter halos and subhalos
Tsafrir S. Kolatt, James S. Bullock, Yair Sigad +4
[Abridged] The interaction rates of dark-matter halos and subhalos, are computed using high-resolution cosmological N-body simulations of the Lambda-CDM model. Although the number…
Velocity and Mass Functions of Galactic Halos: Evolution and Environmental Dependence
Yair Sigad, Tsafrir S. Kolatt, James S. Bullock +4
We study the distribution functions of mass and circular velocity for dark matter halos in N-body simulations of the CDM cosmology, addressing redshift and environmental depende…