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 TanakaI. Non Chiu, Yutaka Komiyama, Yuki Okura, Manobu M. Tanaka, Tomonori Usuda

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117 Scopus citations

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∗ ∼ 1010.2M 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 Nmem > 15 that roughly corresponds to M200m 1014 h-1M. 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 (theXMMLarge 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.

Original languageEnglish (US)
Article numberS20
JournalPublications of the Astronomical Society of Japan
Volume70
Issue numberSpecial Issue 1
DOIs
StatePublished - Jan 1 2018

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Catalogs-cosmology
  • Clusters
  • General
  • Observations-galaxies

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