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تسجيل مستخدم جديدAn optically-selected cluster catalog at redshift 0.1<z<1.1 from the Hyper Suprime-Cam Subaru Strategic Program S16A data
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We present an optically-selected cluster catalog from the Hyper Suprime-Cam (HSC) Subaru Strategic Program. The HSC images are sufficiently deep to detect cluster member galaxies down to $M_*sim 10^{10.2}M_odot$ even at $zsim 1$, allowing a reliable cluster detection at such high redshifts. We apply the CAMIRA algorithm to the HSC Wide S16A dataset covering $sim 232$ deg$^2$ to construct a catalog of 1921 clusters at redshift $0.1<z<1.1$ and richness $hat{N}_{rm mem}>15$ that roughly corresponds to $M_{rm 200m}gtrsim 10^{14}h^{-1}M_odot$. We confirm good cluster photometric redshift performance, with the bias and scatter in $Delta z/(1+z)$ being better than 0.005 and 0.01 over most of the redshift range, respectively. We compare our cluster catalog with large X-ray cluster catalogs from XXL and XMM-LSS surveys and find good correlation between richness and X-ray properties. We also study the miscentering effect from the distribution of offsets between optical and X-ray cluster centers. We confirm the high ($>0.9$) completeness and purity for high mass clusters by analyzing mock galaxy catalogs.
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