J/ApJS/183/197 Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009)
Galaxy clusters identified from the SDSS DR6 and their properties.
Wen Z.L., Han J.L., Liu F.S.
<Astrophys. J. Suppl. Ser., 183, 197-213 (2009)>
=2009ApJS..183..197W 2009ApJS..183..197W
ADC_Keywords: Redshifts ; Clusters, galaxy ; Cross identifications
Keywords: galaxies: clusters: general - galaxies: distances and redshifts
Abstract:
Clusters of galaxies in most of the previous catalogs have redshifts
z≤0.3. Using the photometric redshifts of galaxies from the Sloan
Digital Sky Survey Data Release 6 (SDSS DR6), we identify 39716
clusters in the redshift range 0.05<z<0.6 with more than eight
luminous (Mr≤-21) member galaxies. Cluster redshifts are estimated
accurately with an uncertainty of less than 0.022. The contamination
rate of member galaxies is found to be roughly 20%, and the
completeness of member galaxy detection reaches ∼90%. Monte Carlo
simulations show that the cluster detection rate is more than 90% for
massive (M200>2x1014M☉) clusters of z≤0.42. The false
detection rate is ∼5%. We obtain the richness, the summed luminosity,
and the gross galaxy number within the determined radius for
identified clusters. They are tightly related to the X-ray luminosity
and temperature of clusters. Cluster mass is related to the richness
and summed luminosity with M200∝R1.90±0.04 and
M200∝L1.64±0.03r, respectively. In addition, 790 new
candidates of X-ray clusters are found by cross-identification of our
clusters with the source list of the ROSAT X-ray survey.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 132 39668 Clusters identified from the SDSS-DR6 (table
from erratum 2010ApJS..187..272W 2010ApJS..187..272W)
table2.dat 87 912 Clusters with ROSAT X-ray sources including
685 candidates and 227 known X-ray clusters
(table from erratum 2010ApJS..187..272W 2010ApJS..187..272W)
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See also:
II/282 : The SDSS Photometric Catalog, Release 6 (Adelman-McCarthy+, 2007)
VII/190 : Zwicky Galaxy Catalog (Zwicky+ 1968)
VII/4 : Abell and Zwicky Clusters of Galaxies (Abell+ 1974)
VII/110 : Rich Clusters of Galaxies (Abell+ 1989)
IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)
II/294 : SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000)
J/AJ/123/1807 : SDSS galaxy clusters redshifts (Goto+, 2002)
J/AJ/125/2064 : Northern Optical Cluster Survey. II. (Gal+, 2003)
J/AJ/128/1017 : Northern Optical Cluster Survey. IV. (Lopes+, 2005)
J/A+A/425/367 : REFLEX Galaxy Cluster Survey catalogue (Boehringer+, 2004)
J/ApJ/660/239 : SDSS MaxBCG catalog of 13823 galaxy clusters (Koester+, 2007)
http://www.sdss.org : SDSS Home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [WHL]
5- 20 A16 --- WHL Cluster name (JHHMMSS.s+DDMMSS) (1)
22- 30 F9.5 deg RAdeg BCG Right Ascension in decimal degrees (J2000)
32- 40 F9.5 deg DEdeg BCG Declination in decimal degrees (J2000)
42- 47 F6.4 --- zph Photometric redshift of cluster
49- 55 F7.4 --- zsp BCG spectroscopic redshift of cluster
57- 61 F5.2 mag rmag BCG r band magnitude
63- 65 I3 --- Ngal Number of member galaxy candidates within 1Mpc
67- 72 F6.2 --- R Cluster richness
74- 79 F6.2 --- GCN Gross galaxy number
81- 86 F6.2 Mpc Rad Radius of member galaxy detection
88- 93 F6.2 10+10Lsun Lr Summed r band cluster luminosity
95-100 F6.2 --- D Overdensity level of cluster
103-132 A30 --- Cats Other catalogs containing the cluster (2)
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Note (1): [WHL2009] JHHMMSS.s+DDMMSS or [WHL2009] JHHMMSS.s+DDMMSS BCG
for the BCGs in Simbad.
Note (2): Acronyms used:
Abell = Abell 1958, Cat. VII/4, Abell et al. 1989, Cat. VII/110,
ACO NNNN in Simbad;
Zwcl = Zwicky et al., 1968, Cat. VII/190, ZwCl HHMM+DDMM or ZwCl FFF-NNN
in Simbad;
CE = Goto et al. 2002, Cat. J/AJ/123/1807;
NSC = Gal et al. 2003, Cat. J/AJ/125/2064, NSC JHHMMSS+DDMMSS in Simbad;
NSCS = Lopes et al. 2004, Cat. J/AJ/128/1017, NSCS Jhhmmss+ddmmss in Simbad
maxBCG = Koester et al. 2007, Cat. J/ApJ/660/239, cluster identified
as [KMA2007] DDD.ddddd+DD.ddddd in Simbad;
RXC = Bohringer et al. 2000, Cat. J/ApJS/129/435,
2004, Cat. J/A+A/425/367, RXC JHHMM.m+DDMM in Simbad.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [1RXS]
5- 20 A16 --- 1RXS Name of X-ray source (JHHMMSS.s+DDMMSS)
22- 24 A3 --- --- [WHL]
26- 41 A16 --- WHL Cluster name (JHHMMSS.s+DDMMSS)
43- 51 F9.5 deg RAdeg BCG Right Ascension in decimal degrees (J2000)
53- 61 F9.5 deg DEdeg BCG Declination in decimal degrees (J2000)
63- 68 F6.4 --- zph Photometric redshift of cluster
70- 75 F6.2 Mpc rp Projected X-ray source and cluster BCG
separation
77- 82 F6.3 ct/s Xrate X-ray cluster 0.1-2.4keV band count rate
84- 87 A4 --- NED Known X-ray cluster in NED
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History:
* 29-Jan-2010: From electronic version of the journal
* 27-May-2010: Corrected tables from erratum 2010ApJS..187..272W 2010ApJS..187..272W
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 12-Jan-2010