Subaru Deep Wide-Field Surveys of Lya Emitters at z=3-9 for Galaxy Formation and Reionization
Masami Ouchi
OCIW
Lya Emitters (LAEs) at high redshifts are useful probes of low-mass galaxy formation and cosmic reionization. I present the recent results from our Subaru deep wide-field surveys for LAEs at z=3-7 in a total area of 1.2 deg2. I show statistical properties of LAEs with luminosity functions, correlation functions, and composite spectra which are obtained from our large photometric and spectroscopic samples of 1301 and 178 LAEs, respectively. I discuss galaxy formation and evolution based on these measurements including errors of statistics and field variance robustly estimated from our large samples. Cosmic reionization at z=6-7 is characterized by the evolution of luminosity function and clustering amplitudes. At the last part of my talk, I introduce our on-going z=8.8 LAE search to study galaxy formation and reionization at z=7-9.