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arXiv · 1701.00818

An optically-selected cluster catalog at redshift 0.1<z<1.1 from the Hyper Suprime-Cam Subaru Strategic Program S16A data

Masamune Oguri·Yen-Ting Lin·Sheng-Chieh Lin·Atsushi J. Nishizawa·Anupreeta More·Surhud More·Bau-Ching Hsieh·Elinor Medezinski·Hironao Miyatake·Hung-Yu Jian·Lihwai Lin·Masahiro Takada·Nobuhiro Okabe·Joshua S. Speagle·Jean Coupon·Alexie Leauthaud·Robert H. Lupton·Satoshi Miyazaki·Paul A. Price·Masayuki Tanaka·I-Non Chiu·Yutaka Komiyama·Yuki Okura·Manobu M. Tanaka·Tomonori Usuda
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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 $M_*\sim 10^{10.2}M_\odot$ even at $z\sim 1$, 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 $0.1 15$ 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 $Δz/(1+z)$ 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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Masamune Oguri, Yen-Ting Lin, Sheng-Chieh Lin, Atsushi J. Nishizawa, Anupreeta More, Surhud More, Bau-Ching Hsieh, Elinor Medezinski, Hironao Miyatake, Hung-Yu Jian, Lihwai Lin, Masahiro Takada, Nobuhiro Okabe, Joshua S. Speagle, Jean Coupon, Alexie Leauthaud, Robert H. Lupton, Satoshi Miyazaki, Paul A. Price, Masayuki Tanaka, I-Non Chiu, Yutaka Komiyama, Yuki Okura, Manobu M. Tanaka, Tomonori Usuda. 2017-06-24. An optically-selected cluster catalog at redshift 0.1<z<1.1 from the Hyper Suprime-Cam Subaru Strategic Program S16A data. https://doi.org/10.1093/pasj%2Fpsx042

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