J/ApJ/856/172 The HectoMAP cluster survey. I. (Sohn+, 2018)
The HectoMAP cluster survey.
I. redMaPPer clusters.
Sohn J., Geller M.J., Rines K.J., Hwang Ho S., Utsumi Y., Diaferio A.
<Astrophys. J., 856, 172 (2018)>
=2018ApJ...856..172S 2018ApJ...856..172S
ADC_Keywords: Clusters, galaxy; Galaxies, spectra; Redshifts; Optical
Keywords: cosmology: observations ; galaxies: clusters: general ;
large-scale structure of universe
Abstract:
We use the dense HectoMAP redshift survey to explore the properties of
104 redMaPPer cluster candidates. The redMaPPer systems in HectoMAP
cover the full range of richness and redshift (0.08<z<0.60). Fifteen
of the systems included in the Subaru/Hyper Suprime-Cam public data
release are bona fide clusters. The median number of spectroscopic
members per cluster is ∼20. We include redshifts of 3547 member
candidates listed in the redMaPPer catalog whether they are cluster
members or not. We evaluate the redMaPPer membership probability
spectroscopically. The purity (number of real systems) in redMaPPer
exceeds 90% even at the lowest richness. Three massive galaxy clusters
(M∼2x1013M☉) associated with X-ray emission in the HectoMAP
region are not included in the public redMaPPer catalog with
λrich>20, because they lie outside the cuts for this catalog.
Description:
HectoMAP covers 52.97deg2 within the boundaries 200<RA(deg)<250 and
42.5<DEC(deg)<44.0. The SDSS Data Release 9 (DR9) photometric catalog
(Ahn+ 2012, see V/139) is the photometric basis for the survey.
We measured redshifts with the 300-fiber spectrograph Hectospec
mounted on the MMT 6.5m telescope from 2009 to 2016; wavelength
coverage of 3700-9150Å with a resolution of 6.2Å. The typical
exposure time for an observation is 0.75-1.5hr.
Public Subaru/Hyper Suprime Cam (HSC) imaging covers ∼7deg2 of the
HectoMAP region.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 67 104 HectoMAP-red clusters
table3.dat 78 3547 Candidate members of HectoMAP-red clusters
--------------------------------------------------------------------------------
See also:
VII/4 : Abell and Zwicky Clusters of Galaxies (Abell+ 1974)
VII/110 : Rich Clusters of Galaxies (Abell+ 1989)
V/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)
J/MNRAS/301/881 : The ROSAT brightest cluster sample - I. (Ebeling+, 1998)
J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000)
J/A+A/425/367 : REFLEX Galaxy Cluster Survey catalogue (Boehringer+, 2004)
J/AJ/132/1275 : CIRS (Cluster Infall Regions in the SDSS). I. (Rines+, 2006)
J/ApJ/660/239 : MaxBCG cat. of 13823 SDSS galaxy clusters (Koester+, 2007)
J/ApJS/183/197 : Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009)
J/ApJS/191/254 : GMBCG galaxy cluster catalog from SDSS DR7 (Hao+, 2010)
J/ApJ/736/21 : Galaxy clusters opt. cat. from AMF on SDSS DR6 (Szabo+ 2011)
J/ApJS/199/34 : Clusters of galaxies in SDSS-III (Wen+, 2012)
J/ApJ/767/15 : Hectospec Cluster Survey (HeCS) (Rines+, 2013)
J/MNRAS/444/147 : Richness of galaxy clusters (Oguri, 2014)
J/ApJ/785/104 : redMaPPer. I. Algorithm applied to SDSS DR8 (Rykoff+, 2014)
J/ApJS/216/27 : Galaxy clusters discovered in SPT-SZ survey (Bleem+, 2015)
J/A+A/578/A79 : Galaxy clusters in SDSS Stripe 82 (Durret+, 2015)
J/ApJ/819/63 : Hectospec survey of SZ clusters (HeCS-SZ) (Rines+, 2016)
J/ApJS/224/1 : redMaPPer cluster catalog from DES data (Rykoff+, 2016)
J/AJ/153/220 : NORAS II. I. First results (Bohringer+, 2017)
J/ApJS/229/20 : MMT/Hectospec redshift survey for Abell 2029 (Sohn+, 2017)
J/ApJ/855/100 : The HectoMAP cluster survey. II. X-ray clusters (Sohn+, 2018)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- ClID [1153/89356] redMaPPer cluster ID
7- 8 I2 h RAh [13/16] Hour of Right Ascension (J2000)
10- 11 I2 min RAm Minute of Right Ascension (J2000)
13- 16 F4.1 s RAs Second of Right Ascension (J2000)
18 A1 --- DE- [+] Sign of Declination (J2000)
19- 20 I2 deg DEd [42/43] Degree of Declination (J2000)
22- 23 I2 arcmin DEm Arcminute of Declination (J2000)
25- 28 F4.1 arcsec DEs Arcsecond of Declination (J2000)
30- 35 F6.2 --- Rich [20/102] redMaPPer richness (1)
37- 42 F6.4 --- zphot [0.09/0.6] Photometric redshift of cluster (1)
44- 49 F6.4 --- zspec [0.08/0.7] Spectroscopic redshift of cluster
from this study
51- 53 I3 --- Nrm [31/124] Number of cluster members in redMaPPer
catalog (1)
55- 57 I3 --- Nsp [6/60] Number of spectroscopic members
59- 62 F4.2 --- fspec [0.3/1] HectoMAP completeness for redMaPPer
members (2)
64- 67 F4.2 --- frmem [0.1/0.9] Fraction of spectroscopic members
among redMaPPer members; see equation 2
--------------------------------------------------------------------------------
Note (1): From Rykoff+ (2016, J/ApJS/224/1).
Note (2): We define the spectroscopic completeness as Equation (1):
fcomp=NRM,spec/NRM
where NRM,spec is the number of redMaPPer member candidates
(redMaPPer membership probability Pmem>0) with spectra, and NRM is
the total number of redMaPPer member candidates brighter than
rpetro,0=21.3, the limiting apparent magnitude of HectoMAP.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- ClID [1153/89356] redMaPPer cluster ID
7- 25 A19 --- objID SDSS/redMaPPer cluster member object ID
27- 36 F10.6 deg RAdeg [200.5/249.4] Right ascension (J2000)
38- 47 F10.6 deg DEdeg [42.5/44] Declination (J2000)
49- 55 F7.4 --- Pmem [0/1] redMaPPer membership probability
57- 63 F7.4 --- zspec [-0.0009/1.1] Spectroscopic redshift
65- 71 F7.4 --- e_zspec [0/0.0006]?=-9 Uncertainty in zspec
73- 76 A4 --- r_zspec Reference survey for zspec (1)
78 A1 --- Mem [N/Y] Spectroscopic membership?
(Y=2128 occurrences)
--------------------------------------------------------------------------------
Note (1): Reference as follows:
SDSS = Sloan Digital Sky Survey DR14;
MMT = MMT/Hectospec, this study;
NED = NASA ExtraGalactic Database;
--------------------------------------------------------------------------------
Acknowledgements:
Sohn, Jubee [Harvard-Smithsonian Center for Astrophysics]
History:
From electronic version of the journal
- Col. "Mem" corrected by the author.
References:
Sohn et al. Paper I. 2018ApJ...856..172S 2018ApJ...856..172S This catalog
Sohn et al. Paper II. 2018ApJ...855..100S 2018ApJ...855..100S Cat. J/ApJ/855/100
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 11-Feb-2019