58 citations · 81 across the 5 of their papers we have counts for
4 papers · 2 filters
Detailed comparison of the structures and kinematics of simulated and observed barred galaxies
J. K. O'Neill, J. Dubinski
We examine the observable properties of simulated barred galaxies including radial mass profiles, edge-on structure and kinematics, bar lengths and pattern speed evolution for deta…
High Performance Commodity Networking in a 512-CPU Teraflop Beowulf Cluster for Computational Astrophysics
John Dubinski, Robin Humble, Ue-Li Pen +2
We describe a new 512-CPU Beowulf cluster with Teraflop performance dedicated to problems in computational astrophysics. The cluster incorporates a cubic network topology based on…
Optimal Weak Lensing Skewness Measurements
Tong-Jie Zhang, Ue-Li Pen, Pengjie Zhang +1
Weak lensing measurements are entering a precision era to statistically map the distribution of matter in the universe. The most common measurement has been of the variance of the…
Detection of dark matter Skewness in the VIRMOS-DESCART survey: Implications for Ω_0
Ue-Li Pen, Tongjie Zhang, Ludovic van Waerbeke +3
Weak gravitational lensing provides a direct statistical measure of the dark matter distribution. The variance is easiest to measure, which constrains the degenerate product σ_8Ω^0…