4 citations
4 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…
Gravitational Lensing of Distant Supernovae
Premana Premadi, Hugo Martel
We use a series of ray-tracing experiments to determine the magnification distribution of high-redshift sources by gravitational lensing. We determine empirically the relation betw…
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…