Unveiling cosmic structure formation with galaxy imaging and redshift surveys

Chiaki Hikage
2015 Proceedings of KMI International Symposium 2013 on "Quest for the Origin of Particles and the Universe — PoS(KMI2013)   unpublished
Large-scale structure in the Universe provides a key information of various fundamental issues in modern physics: dark energy, absolute mass of neutrinos, the origin of large-scale structure. Different galaxy imaging and spectroscopic surveys including Japan-led "SuMIRe" project using Subaru Telescope is ongoing or planned to unveil the evolution of the large-scale structure at a wide range of redshift. The largest source of systematic uncertainty in cosmological analysis using galaxy dataset
more » ... the challenge of modeling the complex relationship between galaxy redshift and the distribution of dark matter. We introduce two novel methods to eliminate this systematics by combining different observables from galaxy spectroscopic and photometric data and also show how the measurement of cosmic growth rate is improved. KMI International Symposium
doi:10.22323/1.208.0021 fatcat:b24idjtqzvhcflxqvpth36faya