306 citations · 2.9k across the 108 of their papers we have counts for
6 papers · 1 filter
Testing Tree-Level Perturbation Theory for Large-Scale Structure with the Local Lagrangian Approximation
Zacharias A. M. Protogeros, Adrian L. Melott, Robert J. Scherrer
We test tree-level perturbation theory for Gaussian initial conditions with power spectra by comparing the probability distribution function (PDF) for the density…
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 Bull's-Eye Effect: Are Galaxy Walls Observationally Enhanced?
Elizabeth. A. Praton, Adrian L. Melott, Margaret Q. McKee
We investigate a distortion in redshift-space which causes galaxies to appear to lie in walls concentric about the observer, forming a rough bull's-eye pattern. We simulate what an…
A Test of the Particle Paradigm in N-Body Simulations
B. Kuhlman, A. L. Melott, S. F. Shandarin
We present results of tests of the evolution of small ``fluid elements'' in cosmological N--body simulations, to examine the validity of their treatment as particles. We find that…
Temporal optimization of Lagrangian perturbation schemes
G. Karakatsanis, T. Buchert, A. L. Melott
The Lagrangian perturbation theory on Friedmann-Lemaitre cosmologies is compared with numerical simulations (tree-, adaptive PM- and PM codes). In previous work we have probed…
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…