Clusters in SDSS3
[ CATS home ] [ Back to CATS list ]
[ ftp ]
2011MNRAS.413.3059G
J/ApJS/199/34 132684 clusters of galaxies in SDSS-III (Wen+, 2012)
================================================================================
A catalog of 132,684 clusters of galaxies identified from Sloan Digital Sky
Survey III.
Wen Z.L., Han J.L., Liu F.S.
=2012ApJS..199...34W (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: Clusters, galaxy ; Photometry, SDSS ; Redshifts
Keywords: galaxies: clusters: general - galaxies: distances and redshifts
Abstract:
Using the photometric redshifts of galaxies from the Sloan Digital Sky
Survey III (SDSS-III), we identify 132684 clusters in the redshift
range of 0.05<=z<0.8. Monte Carlo simulations show that the false
detection rate is less than 6% for the whole sample. The completeness
is more than 95% for clusters with a mass of M_200_>1.0x10^14^M_{sun}_
in the redshift range of 0.05<=z<0.42, while clusters of z>0.42 are
less complete and have a biased smaller richness than the real one due
to incompleteness of member galaxies. We compare our sample with other
cluster samples, and find that more than 90% of previously known rich
clusters of 0.05<=z<0.42 are matched with clusters in our sample.
Richer clusters tend to have more luminous brightest cluster galaxies
(BCGs). Correlating with X-ray and the Planck data, we show that the
cluster richness is closely related to the X-ray luminosity,
temperature, and Sunyaev-Zel'dovich measurements. Comparison of the
BCGs with the SDSS luminous red galaxy (LRG) sample shows that 25% of
LRGs are BCGs of our clusters and 36% of LRGs are cluster member
galaxies. In our cluster sample, 63% of BCGs of r_petro_<19.5 satisfy
the SDSS LRG selection criteria.
Description:
Wen et al. (2009, Cat. J/ApJS/183/197) identified 39668 galaxy
clusters from the SDSS DR6 by the discrimination of member galaxies of
clusters using photometric redshifts of galaxies. Wen & Han
(2011ApJ...734...68W) improved the method and successfully identified
the high-redshift clusters from the deep fields of the
Canada-France-Hawaii Telescope (CFHT) Wide survey, the CHFT Deep
survey, the Cosmic Evolution Survey, and the Spitzer Wide-area
InfraRed Extragalactic survey. Here, we follow and improve the
algorithm to identify clusters from SDSS-III (SDSS Data Release 8;
Aihara et al. 2011ApJS..193...29A, see Cat. II/306).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 106 132684 Clusters of Galaxies Identified from the SDSS-III
--------------------------------------------------------------------------------
See also:
II/306 : The SDSS Photometric Catalog, Release 8 (Adelman-McCarthy+, 2011)
VII/110 : Rich Clusters of Galaxies (Abell+ 1989)
VII/4 : Abell and Zwicky Clusters of Galaxies (Abell+ 1974)
J/A+A/540/A106 : SDSS DR8 groups and clusters of galaxies (Tempel+, 2012)
J/ApJ/736/21 : Galaxy clusters optical catalog from AMF on SDSS DR6 (Szabo+
2011)
J/ApJS/183/197 : Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009)
J/ApJ/660/239 : MaxBCG catalog of 13823 galaxy clusters from SDSS (Koester+,
2007)
J/ApJS/167/1 : Galaxy groups and clusters from SDSS (Berlind+, 2006)
J/ApJS/148/243 : Catalog of clusters of galaxies from SDSS (Bahcall+, 2003)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [WHL]
5- 20 A16 --- [WHL2012] Cluster name (JHHMMSS.s+DDMMSS)
22- 30 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000)
32- 40 F9.5 deg DEdeg Declination in decimal degrees (J2000)
42- 47 F6.4 --- zp Photometric redshift
49- 55 F7.4 --- zsp ?=-1 Spectroscopic redshift of BCG
57- 61 F5.2 mag rmag BCG r band magnitude
63- 66 F4.2 Mpc r200 Cluster r_200_ value (1)
68- 73 F6.2 --- RL* Cluster richness
75- 77 I3 --- N200 Number of member galaxy candidates within r200
79-106 A28 --- Other Other catalog(s) containing the cluster (2)
--------------------------------------------------------------------------------
Note (1): The radius within which the mean density of a cluster is 200 times
of the critical density of the Universe.
Note (2): Catalog as follows:
Abell = Abell 1958, Cat. VII/4; Abell et al. 1989, Cat. VII/110;
maxBCG = Koester et al. 2007, Cat. J/ApJ/660/239;
WHL09 = Wen et al. 2009, Cat. J/ApJS/183/197;
GMBCG = Hao et al. 2010ApJS..191..254H;
AMF = Szabo et al. 2011, Cat. J/ApJ/736/21.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
================================================================================
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 14-Jun-2012