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Oguri, Masamune; Lin, Yen-Ting; Lin, Sheng-Chieh; Nishizawa, Atsushi J; More, Anupreeta; More, Surhud; Hsieh, Bau-Ching; Medezinski, Elinor; Miyatake, Hironao; Jian, Hung-Yu; Lin, Lihwai; Takada, Masahiro; Okabe, Nobuhiro; Speagle, Joshua S; Coupon, Jean; Leauthaud, Alexie; Lupton, Robert H; Miyazaki, Satoshi; Price, Paul A; Tanaka, Masayuki; Chiu, I-Non; Komiyama, Yutaka; Okura, Yuki; Tanaka, Manobu M; Usuda, Tomonori
Publications of the Astronomical Society of Japan, 01/2018, Letnik: 70, Številka: SP1Journal Article
Abstract 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* ∼ 1010.2 M⊙ even at z ∼ 1, allowing a reliable cluster detection at such high redshifts. We apply the CAMIRA algorithm to the HSC Wide S16A dataset covering ∼232 deg2 to construct a catalog of 1921 clusters at redshift 0.1 < z < 1.1 and richness ${\skew7\hat{N}}_{\rm mem}>15$ that roughly corresponds to M200m ≳ 1014 h−1 M⊙. We confirm good cluster photometric redshift performance, with the bias and the scatter in Δz/(1 + z) being better than 0.005 and 0.01, respectively, over most of the redshift range. We compare our cluster catalog with large X-ray cluster catalogs from the XXL and XMM-LSS (the XMM Large Scale Structure) surveys and find good correlation between richness and X-ray properties.We also study the mis-centering 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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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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