DR. SURHUD MORE

The distribution of galaxies in the Universe traces the distribution of matter. Therefore, observations of galaxies can provide important information about the cosmological parameters. The speaker will present how a joint analysis of the abundance of galaxies, their clustering, and the galaxy-galaxy lensing signal can be used to probe the connection between galaxies and their dark matter halos, as well as the cosmological parameters. One of the tightest constraints on ¿_m and s_8 from such an analysis using data from the Sloan Digital Sky Survey has been obtained. The speaker will show how the galaxy-dark matter connection inferred from his analysis can be used to improve the cosmological constraints from galaxy cluster surveys in the near future. Finally, the speaker will briefly discuss SuMiRe, a planned survey using the prime focus at Subaru and present how our analysis can be ported to further improve the cosmological constraints.