Catalogs of optically selected clusters and photometric luminous red galaxies from the Hyper Suprime-Cam Subaru Strategic Program final-year dataset

Abstract We construct samples of optically selected clusters and photometric luminous red galaxies (LRGs) from the Hyper Suprime-Cam Subaru Strategic Program final-year dataset covering $\sim$1200 deg$^2$. The cluster catalogs extend out to a redshift of 1.38 and contain more than 10000 clusters with richness larger than 15, where the richness is defined to be a membership probability weighted number of galaxies above the stellar masses of approximately $10^{10.2}\, M_\odot$. The total number of probable red cluster member galaxies in these clusters is more than $6\times 10^5$. Photometric redshifts of the clusters are shown to be precise with a scatter better than $\sim$0.01 for a wide redshift range. We detect stacked weak-lensing signals of clusters out to a redshift of 1, and use them to update constraints on the mass–richness relation. Our catalog of about 6 million photometric LRGs extends to a redshift of 1.25, and has a photometric redshift scatter of better than $\sim$0.02 for the redshift range between 0.4 and 1.0.