Cluster Cosmology » PaperJournals

h1. Cosmology with the largest galaxy cluster surveys: Going beyond Fisher matrix forecasts

We make the first detailed MCMC likelihood study of cosmological constraints that are expected from some of the largest, ongoing and proposed, cluster surveys in different wave-bands and compare the estimates to the prevalent Fisher matrix forecasts. 

http://arxiv.org/pdf/1210.5586v1.pdf

h2. Star-Galaxy Classification in Multi-Band Optical Imaging.

Ground-based optical surveys such as PanSTARRS, DES, and LSST, will produce large catalogs to limiting magnitudes of r > 24. Star-galaxy separation poses a major challenge to such surveys because galaxies---even very compact galaxies---outnumber halo stars at these depths

http://arxiv.org/abs/1206.4306

h2. The Atacama Cosmology Telescope: Cross-Correlation of CMB Lensing and Quasars

We measure the cross-correlation of Atacama Cosmology Telescope CMB lensing convergence maps with quasar maps made from the Sloan Digital Sky Survey DR8 SDSS-XDQSO photometric catalog. 

http://arxiv.org/abs/1207.4543

h2. CALCLENS: Weak Lensing Simulations for Large-area Sky Surveys and Second-order Effects in Cosmic Shear Power Spectra

http://arxiv.org/abs/1210.3069

h2. Cosmic shear results from the deep lens survey - I: Joint constraints on omega_m and sigma_8 with a two-dimensional analysis

We present a cosmic shear study from the Deep Lens Survey (DLS), a deep BVRz multi-band imaging survey of five 4 sq. degree fields with two National Optical Astronomy Observatory (NOAO) 4-meter telescopes at Kitt Peak and Cerro Tololo.

http://arxiv.org/abs/1210.2732v1

h2. Spatial Anisotropy of Galaxy Kinematics in Sloan Digital Sky Survey Galaxy Clusters

Here we measure the azimuthal dependence of the line-of-sight velocity dispersion profile in a stacked sample of 1743 galaxy clusters from the Sloan Digital Sky Survey (SDSS).

http://arxiv.org/abs/1208.4598