J/PASJ/70/S20 HSC Wide S16A cluster catalog (Oguri+, 2018)
An optically-selected cluster catalog at redshift 0.1 < z < 1.1 from the
Hyper Suprime-Cam Subaru Strategic Program S16A data.
Oguri M., Lin Y.-T., Lin S.-C., Nishizawa A.J., More A., More S.,
Hsieh B.-C., Medezinski E., Miyatake H., Jian H.-Y., Lin L., Takada M.,
Okabe N., Speagle J.S., Coupon J., Leauthaud A., Lupton R.H., Miyazaki S.,
Price P.A., Tanaka M., Chiu I-N., Komiyama Y., Okura Y., Tanaka M.M.,
Usuda T.
<Publ. Astron. Soc. Jap., 70, S20 (2018)>
=2018PASJ...70S..20O 2018PASJ...70S..20O (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts
Keywords: cosmology: observations - gamma rays: galaxies: clusters - catalogs
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 ∼232deg2 to construct a catalog of 1921
clusters at redshift 0.1<z<1.1 and richness Nmem>15 that roughly
corresponds to M200m≳1014h-1M☉. We confirm good cluster
photometric redshift performance, with the bias and the scatter in
{DELTA}z/(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.
Description:
We construct an HSC Wide S16A cluster catalog in the redshift range
0.1<zcl<1.1, where zcl denotes photometric redshifts of clusters.
Cluster photometric redshifts are computed in the course of CAMIRA
cluster finding by combining photometric redshifts of high-confidence
cluster member galaxies (see Oguri, 2014MNRAS.444..147O 2014MNRAS.444..147O, Cat.
J/MNRAS/444/147). The upper limit of the redshift comes mainly from
the lack of spectroscopic galaxies for the calibration, but it is also
due to the limited wavelength coverage. The lower limit of the
redshift is because large angular sizes of low-redshift clusters make
cluster-finding challenging, and member galaxies also tend to be too
bright in HSC images. We select clusters with the mask-corrected
richness Nmem (see Oguri 2014MNRAS.444..147O 2014MNRAS.444..147O, for the definition)
higher than 15. The catalog contains 1921 clusters.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 69 1921 CAMIRA HSC S16A Wide cluster catalog
(w/o bright star mask)
table2.dat 69 1608 CAMIRA HSC S16A Wide cluster catalog
(with bright star mask)
table2n.dat 69 1777 CAMIRA HSC S16A Wide cluster catalog
(with new star mask 'Arcturus'),
update of table2.dat
table3.dat 69 166 CAMIRA HSC S16A Deep cluster catalog
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See also:
J/MNRAS/444/147 : Richness of galaxy clusters (Oguri, 2014)
Byte-by-byte Description of file: table1.dat table2.dat table2n.dat table3.dat
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Bytes Format Units Label Explanations
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2- 5 I4 --- ID Sequential number (within the table)
7- 23 A17 --- Name Name (HSCJHHMMSSs+DDMMSS)
25- 34 F10.6 deg RAdeg Right ascension (J2000)
37- 45 F9.6 deg DEdeg Declination (J2000)
47- 52 F6.4 --- zph cluster photometric redshift z_cl
54- 60 F7.3 --- Nmem Richness
62- 69 F8.5 --- zsp ?=-1 Spectroscopic redshift of BCG
(-1.0 if not available)
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History:
Copied at https://www.slac.stanford.edu/~oguri/cluster/
(End) Patricia Vannier [CDS] 04-May-2021