Mass Profiles and Shapes of Cosmological Structures
G.A. Mamon, F. Combes, C. Deffayet and B. Fort (eds)
EAS Publications Series, 20 (2006) 29-32DOI: 10.1051/eas:2006041
The Internal Kinematics Of Cold Dark Matter Haloes
C. Power Centre for Astrophysics and Supercomputing,
Swinburne University of Technology,
PO Box 218, Hawthorn, 3122, Victoria, Australia
Abstract
The hierarchical nature of halo formation in the Cold Dark Matter (CDM) model
suggests that there should be mass dependent trends in the radial velocity and
velocity anisotropy profiles of dark matter haloes, with more massive systems
exhibiting the effects of more pronounced infall. We present results from a
sample of high resolution cosmological
N-body simulations of individual dwarf,
galaxy and cluster mass haloes, and demonstrate that such trends with mass are
indeed observed.
© EAS, EDP Sciences 2006
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