4 papers · 1 filter
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…
Smooth Particle Hydrodynamics: Models, Applications, and Enabling Technologies
Piet Hut, Lars Hernquist, George Lake +3
We present the results from a two-day study in which we discussed various implementations of Smooth Particle Hydrodynamics (SPH), one of the leading methods used across a variety o…
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…