103 citations · 112 across the 8 of their papers we have counts for
17 papers
The Evolving Structure of Galactic Disks
Hugo Martel, Chris Brook, Sean McGee +2
Observations suggest that the structural parameters of disk galaxies have not changed greatly since redshift 1. We examine whether these observations are consistent with a cosmolog…
Generation of Gaussian Density Fields
Hugo Martel
This document describes analytical and numerical techniques for the generation of Gaussian density fields, which represent cosmological density perturbations. The mathematical tech…
Evolving Disks in Cold Dark Matter Cosmology
C. B. Brook, H. Martel, B. K. Gibson +1
Despite having entered the era of "precision cosmology," the formation of galaxies within the favored CDM cosmological paradigm remains problematic. By relating our N-body/smooth p…
Long-term stability of collisionless equilibrium configurations; algorithms
Jean-Rene Gauthier, Hugo Martel
We present the summary of the theoretical aspects and algorithms used in an undergraduate (JRG) summer project based on numerical N-body simulations of collisionless systems. First…
The Equilibrium Structure of CDM Halos
Paul R. Shapiro, Ilian T. Iliev, Hugo Martel +2
Dark-matter halos are the scaffolding around which galaxies and clusters are built. They form when the gravitational instability of primordial density fluctuations causes regions w…
Gravitational Lensing by CDM Halos: Singular versus Nonsingular Profiles
Hugo Martel, Paul R. Shapiro
The gravitational lensing properties of cosmological halos depend upon the mass distribution within each halo. The description of halos as nonsingular, truncated isothermal spheres…