Cluster Cosmology » PaperJournals

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

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

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

CALCLENS: Weak Lensing Simulations for Large-area Sky Surveys and Second-order Effects in Cosmic Shear Power Spectra
http://arxiv.org/abs/1210.3069

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

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

Video of conference talk on neutrino mass in cosmology[38 minutes] by Y Wong
http://cdsweb.cern.ch/record/1448628