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- Title
An optically-selected cluster catalog at redshift 0.1 < z < 1.1 from the Hyper Suprime-Cam Subaru Strategic Program S16A data.
- Authors
Masamune OGURI; Yen-Ting LIN; Sheng-Chieh LIN; NISHIZAWA, Atsushi J.; MORE, Anupreeta; MORE, Surhud; Bau-Ching HSIEH; Elinor MEDEZINSKI; Hironao MIYATAKE; Hung-Yu JIAN; Lihwai LIN; Masahiro TAKADA; Nobuhiro OKABE; SPEAGLE, Joshua S.; Jean COUPON; LEAUTHAUD, Alexie; LUPTON, Robert H.; Satoshi MIYAZAKI; PRICE, Paul A.; Masayuki TANAKA
- 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 ňmem>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.
- Subjects
GALACTIC redshift; REDSHIFT; ASTROPHYSICS; XMM-Newton Observatory (Artificial satellite); ARTIFICIAL satellites
- Publication
Publications of the Astronomical Society of Japan, 2018, Vol 70, Issue Supp1, p1
- ISSN
0004-6264
- Publication type
Article
- DOI
10.1093/pasj/psx042