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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

Research output: Contribution to journalArticlepeer-review

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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