18 citations · 120 across the 12 of their papers we have counts for
12 papers
Testing growth rate dependence in cosmological perturbation theory using scale-free models
Azrul Pohan, Michael Joyce, David Benhaiem +1
We generalize previously derived analytic results for the one-loop power spectrum (PS) in scale-free models (with linear PS ) to a broader class of such models in…
Long-lived transient structure in collisionless self-gravitating systems
David Benhaiem, Francesco Sylos Labini, Michael Joyce
The evolution of self-gravitating systems, and long-range interacting systems more generally, from initial configurations far from dynamical equilibrium is often described as a sim…
Nonaxisymmetric models of galaxy velocity maps
Francesco Sylos Labini, David Benhaiem, Sebastien Comeron +1
Galaxy velocity maps often show the typical pattern of a rotating disk, consistent with the dynamical model where emitters rotate in circular orbits around the galactic center. The…
Transient spiral arms from far out of equilibrium gravitational evolution
David Benhaiem, Michael Joyce, Francesco Sylos Labini
We describe how a simple class of out of equilibrium, rotating and asymmetrical mass distributions evolve under their self-gravity to produce a quasi-planar spiral structure surrou…
Particle number dependence in the non-linear evolution of N-body self-gravitating systems
David Benhaiem, Michael Joyce, Francesco Sylos Labini +1
Simulations of purely self-gravitating N-body systems are often used in astrophysics and cosmology to study the collisionless limit of such systems. Their results for macroscopic q…
Formation of satellites from cold collapse
David Benhaiem, Francesco Sylos Labini
We study the collapse of an isolated, initially cold, irregular (but almost spherical) and (slightly) inhomogeneous cloud of self-gravitating particles. The cloud is driven towards…
Stable clustering and the resolution of dissipationless cosmological N-body simulations
David Benhaiem, Michael Joyce, Francesco Sylos Labini
The determination of the resolution of cosmological N-body simulations, i.e., the range of scales in which quantities measured in them represent accurately the continuum limit, is…
Angular momentum generation in cold gravitational collapse
D. Benhaiem, M. Joyce, F. Sylos Labini +1
During the violent relaxation of a self-gravitating system a significant fraction of its mass may be ejected. If the time varying gravitational field also breaks spherical symmetry…
Violent relaxation of ellipsoidal clouds
David Benhaiem, Francesco Sylos Labini
An isolated, initially cold and ellipsoidal cloud of self-gravitating particles represents a relatively simple system to study the effects of the deviations from spherical symmetry…
On the generation of triaxiality in the collapse of cold spherical self-gravitating systems
Francesco Sylos Labini, David Benhaiem, Michael Joyce
Initially cold and spherically symmetric self-gravitating systems may give rise to a virial equilibrium state which is far from spherically symmetric, and typically triaxial. We fo…
Self-similarity and stable clustering in a family of scale-free cosmologies
David Benhaiem, Michael Joyce, Bruno Marcos
We study non-linear gravitational clustering from cold gaussian power-law initial conditions in a family of scale-free EdS models, characterized by a free parameter fixing the…
Exponents of non-linear clustering in scale-free one dimensional cosmological simulations
David Benhaiem, Michael Joyce, François Sicard
One dimensional versions of cosmological N-body simulations have been shown to share many qualitative behaviours of the three dimensional problem. They can resolve a large range of…