175 citations · 239 across the 3 of their papers we have counts for
10 papers · 1 filter
The angular correlations of galaxies in the COSMOS field
H. J. McCracken, J. A. Peacock, L. Guzzo +21
We present measurements of the two-point galaxy angular correlation function w(θ) in the COSMOS field. Independent determinations of w(θ) as a function of magnitude limit are prese…
Large Structures and Galaxy Evolution in COSMOS at z < 1.1
N. Scoville, H. Aussel, A. Benson +25
We present the first identification of large-scale structures (LSS) at z in the Cosmic Evolution Survey (COSMOS). The structures are identified from adaptive smoothing of g…
Two Body Relaxation in Simulated Cosmological Haloes
Amr El-Zant
This paper aims at quantifying discreetness effects, born of finite particle number, on the dynamics of dark matter haloes forming in the context of cosmological simulations. By ge…
The persistence of the universal halo profiles
Amr El-Zant
Simple simulations suggest that the phase space structure of haloes identified in cosmological calculations is invariant under the dynamics induced by sinking substructure satellit…
Flat-Cored Dark Matter in Cuspy Clusters of Galaxies
Amr El-Zant, Yehuda Hoffman, Joel Primack +2
Sand, Treu, & Ellis (2002) have measured the central density profile of cluster MS2137-23 with gravitational lensing and velocity dispersion and removed the stellar contribution wi…
Long-Lived Double-Barred Galaxies: Critical Mass and Length Scales
Amr El-Zant, Isaac Shlosman
A substantial fraction of disk galaxies is double-barred. We analyze the dynamical stability of such nested bar systems by means of Liapunov exponents,by fixing a generic model and…