102 citations · 270 across the 7 of their papers we have counts for
7 papers
Dark Matter, Discreteness and Collision Error in Cosmological N-Body Simulations
Randall J. Splinter, Adrian L. Melott, Sergei F. Shandarin
We report on a series of tests of agreement between three types of N-body simulations: PM, PM, and Tree codes. We find good agreement in both the individual and the statistical…
Fundamental Discreteness Limitations of Cosmological N-Body Clustering Simulations
Randall J. Splinter, Adrian L. Melott, Sergei F. Shandarin +1
We explore some of the effects that discreteness and two-body scattering may have on N-body simulations with ``realistic'' cosmological initial conditions. We use an identical subs…
Demonstrating Discreteness and Collision Error in Cosmological N-body Simulations of Dark Matter Gravitational Clustering
A. L. Melott, S. F. Shandarin, R. J. Splinter +1
Two-body scattering and other discreteness effects are unimportant in cosmological gravitational clustering in most scenarios, since the dark matter has a small particle mass. The…
The Ellipticity and Orientation of Clusters of Galaxies from N-Body Experiments
Randall J. Splinter, Adrian L. Melott, Angela Linn +2
In this study we use simulations of 128 particles to study the ellipticity and orientation of clusters of galaxies in N-body simulations of differing power-law initial spectra…
The Superiority of the Minimal Spanning Tree in Percolation Analyses of Cosmological Datasets
S. P. Bhavsar, R. J. Splinter
In this work we demonstrate the ability of the Minimal Spanning Tree to duplicate the information contained within a percolation analysis for a point dataset. We show how to constr…
A Nested Grid Particle-Mesh Code for High Resolution Simulations of Gravitational Instability in Cosmology
R. J. Splinter
I describe a nested-grid particle-mesh (NGPM) code designed to study gravitational instability in three-dimensions. The code is based upon a standard PM code. Within the parent gri…