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Status of Cosmology
Joel R. Primack
The cosmological parameters that I will emphasize are the Hubble parameter km s Mpc, the age of the universe , the average matter density $Ω_m…
Breaking the Disk/Halo Degeneracy with Gravitational Lensing
Ariyeh H. Maller, Luc Simard, Puragra Guhathakurta +4
The degeneracy between the disk and the dark matter contribution to galaxy rotation curves remains an important uncertainty in our understanding of disk galaxies. Here we discuss a…
Clustering of high-redshift galaxies: relating LBGs to dark matter halos
Risa H. Wechsler, James S. Bullock, Rachel S. Somerville +4
We investigate the clustering properties of high-redshift galaxies within three competing scenarios for assigning luminous galaxies to dark matter halos from N-body simulations: a…
The Implications of Galaxy Formation Models for the TeV Observations of Current Detectors
L. M. Boone, J. S. Bullock, J. R. Primack +1
This paper represents a step toward constraining galaxy formation models via TeV gamm a ray observations. We use semi-analytic models of galaxy formation to predict a spectral dist…
Arc Statistics in Clusters: Galaxy Contribution
R. A. Flores, A. H. Maller, J. R. Primack
The frequency with which background galaxies appear as long arcs as a result of gravitational lensing by foreground clusters of galaxies has recently been found to be a very sensit…
Profiles of dark haloes: evolution, scatter, and environment
James S. Bullock, Tsafrir S. Kolatt, Yair Sigad +5
We study dark-matter halo density profiles in a high-resolution N-body simulation of an LCDM cosmology. Our statistical sample contains ~5000 haloes in the range 10^{11}-10^{14} M_…