J/MNRAS/406/1318 Lensed-arc statistics of galaxy clusters (Horesh+, 2010)
The lensing efficiencies of MACS X-ray-selected versus RCS optically selected
galaxy clusters.
Horesh A., Maoz D., Ebeling H., Seidel G., Bartelmann M.
<Mon. Not. R. Astron. Soc., 406, 1318-1336 (2010)>
=2010MNRAS.406.1318H 2010MNRAS.406.1318H
ADC_Keywords: Clusters, galaxy ; X-ray sources ; Redshifts ; Photometry, HST
Keywords: galaxies: clusters: general - gravitational lensing: strong
Abstract:
The statistics of strongly lensed arcs in samples of galaxy clusters
provide information on cluster structure that is complementary to that
from individual clusters. However, samples of clusters that have been
analysed to date have been either small, heterogeneous or observed
with limited angular resolution. We measure the lensed-arc statistics
of 97 clusters imaged at high angular resolution with the Hubble Space
Telescope, identifying lensed arcs using two automated arc-detection
algorithms. The sample includes similar numbers of X-ray-selected
[MAssive Cluster Survey (MACS)] and optically selected [Red-Sequence
Cluster Survey (RCS)] clusters, and spans cluster redshifts in the
range 0.2<z<1. We compile a catalogue of 42 arcs in the
X-ray-selected subsample and seven arcs in the optical subsample. All
but five of these arcs are reported here for the first time.
Description:
We have compiled from the HST archive a sample of clusters observed
with the Advanced Camera for Surveys (ACS).
Here we use images of 35 MACS clusters observed with the ACS
(GO-09722, GO-10491, GO-10875, PI Ebeling).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 55 23 *MACS low-redshift (0.3≤z<0.5) sample
table2.dat 64 12 *MACS medium-redshift (0.5≤z<0.7) sample
table3.dat 54 18 *RCS low-redshift (0.3≤z<0.5) sample
table4.dat 54 18 *RCS medium-redshift (0.5≤z<0.7) sample
table5.dat 47 16 *RCS high-redshift (0.7≤z≤1) sample
table6.dat 52 49 Detected arcs and properties
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Note on table1.dat, table2.dat: MACS = MAssive Cluster Survey
Note on table3.dat, table4.dat, table5.dat: RCS = Red-Sequence Cluster Survey
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See also:
J/MNRAS/339/913 : Two distant massive clusters of galaxies (Edge+, 2003)
J/ApJS/157/1 : Red-Sequence Cluster Survey (Gladders+, 2005)
J/ApJS/158/161 : Photometric redshift catalog from the RCS (Hsieh+, 2005)
Byte-by-byte Description of file: table[12].dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [MACS]
5- 16 A12 --- MACS MACS name (JHHMM.m+DDMM)
18- 19 I2 h RAh Right ascension (J2000)
21- 22 I2 min RAm Right ascension (J2000)
24- 27 F4.1 s RAs Right ascension (J2000)
29 A1 --- DE- Declination sign (J2000)
30- 31 I2 deg DEd Declination (J2000)
33- 34 I2 arcmin DEm Declination (J2000)
36- 39 F4.1 arcsec DEs Declination (J2000)
41- 45 F5.3 --- z ?=- Redshift
47 I1 --- r_z Redshift reference (1)
49- 53 F5.2 mag F606W ?=- Brightest cluster galaxy F606W magnitude
55 A1 --- Arc [*] indicates arc in table6.dat
57- 60 F4.1 10+37W LX ? X-ray luminosity (0.1-2.4keV) (ref#7 only)
62- 64 F3.1 10+15Msun M200 ? Mass enclosed within r200 (2)
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Note (1): References as follows:
1 = Ebeling et al. (in preparation)
2 = Stott et al. (2007ApJ...661...95S 2007ApJ...661...95S)
3 = Allen et al. (2008MNRAS.383..879A 2008MNRAS.383..879A)
4 = Edge et al. (2003, Cat. J/MNRAS/339/913)
5 = Balestra et al. (2007A&A...462..429B 2007A&A...462..429B)
6 = Smail et al. (2007ApJ...654L..33S 2007ApJ...654L..33S)
7 = Ebeling et al. (2007ApJ...661L..33E 2007ApJ...661L..33E), in table2 only
Note (2): In table2 only.
M200 is the mass enclosed within r200, the radius within which the
average density is equal to 200 times the critical cosmological
density at the observed redshift; M200 values are based on the
LX-M200 relation of Reiprich & Boehringer (2002ApJ...567..716R 2002ApJ...567..716R).
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Byte-by-byte Description of file: table[345].dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [RCS]
4- 18 A15 --- RCS RCS name (HHMMSS+DDMM.m or HHMMSS.s+DDMMSS)
20- 21 I2 h RAh Right ascension (J2000)
23- 24 I2 min RAm Right ascension (J2000)
26- 29 F4.1 s RAs Right ascension (J2000)
31 A1 --- DE- Declination sign (J2000)
32- 33 I2 deg DEd Declination (J2000)
35- 36 I2 arcmin DEm Declination (J2000)
38- 41 F4.1 arcsec DEs Declination (J2000)
43- 47 F5.3 --- z Redshift
49- 52 F4.1 mag F814W ?=- Brightest cluster galaxy F814W magnitude
54 A1 --- Arc [*] indicates arc in table6.dat
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Name Cluster name (MACS or RCS)
20- 21 A2 --- Arc Arc ID
22 A1 --- r_Arc [abc] Arc previously reported (1)
24- 27 F4.1 arcsec Length Arc length
29- 31 F3.1 arcsec Width Arc width
33- 37 F5.2 --- l/w Length-to-width ratio
39- 42 F4.1 mag F606W ? F606W magnitude
44- 47 F4.1 mag F814W ? F814W magnitude
49- 52 F4.1 arcsec Sep ?=- Radial separation from cluster centre
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Note (1): Notes as follows:
a = Arcs previously reported by Sand et al. (2005, Cat. J/ApJ/627/32)
b = Arcs previously reported by Ebeling et al. (2009MNRAS.395.1213E 2009MNRAS.395.1213E)
c = Arcs previously reported by Gladders et al. (2003ApJ...593...48G 2003ApJ...593...48G)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Jan-2011