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The Structure and Dynamics of Cold Dark Matter Halos
Ben Moore, Sebastiano Ghigna, Fabio Governato +3
We investigate the internal structure of cold dark matter halos using high resolution N-body simulations. As the mass and force resolution are increased, halo density profiles beco…
On the origin of early type galaxies and the evolution of the interaction rate in the field
F. Governato, Jeffrey P. Gardner, J. Stadel +2
Using cosmological N-body simulations of critical (SCDM) and open (Omega_0=0.3, OCDM) cold dark matter models we have identified dark matter halos which are associated with the pro…
Time stepping N-body simulations
Thomas Quinn, Neal Katz, Joachim Stadel +1
Leapfrog integration has been the method of choice in N-body simulations owing to its low computational cost for a symplectic integrator with second order accuracy. We introduce a…
Resolving the Structure of Cold Dark Matter Halos
Ben Moore, Fabio Governato, Tom Quinn +2
We examine the effects of mass resolution and force softening on the density profiles of cold dark matter halos that form within cosmological N-body simulations. As we increase the…