Our people

My current research focuses on accurate physical modeling of systematics in cosmological analyses using galaxy clusters and developing a way to identify high-redshift galaxy clusters by jointly using data from photometric and spectroscopic galaxy surveys. This enables us to fully explore the scientific capability of large-scale structure probes from ongoing and future galaxy surveys. The coming decade of cluster cosmology will be interesting, as the next-generation X-ray and optical cluster surveys (e.g., e-ROSITA and LSST) are expected to detect more than 100,000 galaxy clusters. To exploit the statistical power of these surveys, more accurate modeling of clusters and their observables are necessary to control systematic uncertainties in cluster cosmology. I am currently a co-leader of the Prime Focus Spectrograph (PFS) Cosmology working group, which is an ongoing spectroscopic galaxy survey using 8m Subaru telescope to map about 4 million emission-line galaxies up to z=2.4.