Cosmological constraints from the 100-deg2 weak-lensing survey
Hoekstra, Henk; Heymans, Catherine; Mellier, Yannick; Van Waerbeke, Ludovic; Yee, H. K. C.; Gladders, Michael D.; Erben, Thomas; Semboloni, Elisabetta; Hetterscheidt, Marco; Benjamin, Jonathan
Canada, France, Germany, United States
Abstract
We present a cosmic shear analysis of the 100-deg2 weak-lensing survey, combining data from the CFHTLS-Wide, RCS, VIRMOS-DESCART and GaBoDS surveys. Spanning ~100 deg2, with a median source redshift z~ 0.78, this combined survey allows us to place tight joint constraints on the matter density parameter Ωm, and the amplitude of the matter power spectrum σ8, finding σ8(Ωm/0.24)0.59= 0.84 ± 0.05. Tables of the measured shear correlation function and the calculated covariance matrix for each survey are included as supplementary material to the online version of this article.