4 papers · 1 filter
The Shape of Galaxy Cluster Dark Matter Haloes: Systematics of Its Imprint on Cluster Gas, and Comparison to Observations
Ricardo A. Flores, Brandon Allgood, Andrey V. Kravtsov +3
(Abridged) We study predictions for galaxy cluster observables that can test the statistics of dark matter halo shapes expected in a flat LCDM universe. We present a simple analyti…
The Shape of Dark Matter Halos: Dependence on Mass, Redshift, Radius, and Formation
Brandon Allgood, Ricardo A. Flores, Joel R. Primack +4
Using six high resolution dissipationless simulations with a varying box size in a flat LCDM universe, we study the mass and redshift dependence of dark matter halo shapes for M_vi…
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…
Statistics of AGN in Rich Clusters Revisited
M. J. Way, R. A. Flores, H. Quintana
Using spectrophotometry of a large sample of galaxies in 19 Abell Clusters, we have selected 42 candidate AGN by the criteria used by Dressler et.al. 1985 (DTS) in their analysis o…