2012MNRAS.420.3213O


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.02CEST11:16:39

2012MNRAS.420.3213O - Mon. Not. R. Astron. Soc., 420, 3213-3239 (2012/March-2)

Combined strong and weak lensing analysis of 28 clusters from the Sloan giant arcs survey.

OGURI M., BAYLISS M.B., DAHLE H., SHARON K., GLADDERS M.D., NATARAJAN P., HENNAWI J.F. and KOESTER B.P.

Abstract (from CDS):

We study the mass distribution of a sample of 28 galaxy clusters using strong and weak lensing observations. The clusters are selected via their strong lensing properties as part of the Sloan Giant Arcs Survey (SGAS) from the Sloan Digital Sky Survey (SDSS). Mass modelling of the strong lensing information from the giant arcs is combined with weak lensing measurements from deep Subaru/Suprime-cam images to primarily obtain robust constraints on the concentration parameter and the shape of the mass distribution. We find that the concentration cvir is a steep function of the mass, cvirM–0.59±0.12vir, with the value roughly consistent with the lensing-bias-corrected theoretical expectation for high-mass ( ∼ 1015 h–1 M) clusters. However, the observationally inferred concentration parameters appear to be much higher at lower masses ( ∼ 1014 h–1 M), possibly a consequence of the modification to the inner density profiles provided by baryon cooling. The steep mass–concentration relation is also supported from direct stacking analysis of the tangential shear profiles. In addition, we explore the 2D shape of the projected mass distribution by stacking weak lensing shear maps of individual clusters with prior information on the position angle from strong lens modelling, and find significant evidence for a large mean ellipticity with the best-fitting value of < e>= 0.47±0.06 for the mass distribution of the stacked sample. We find that the luminous cluster member galaxy distribution traces the overall mass distribution very well, although the distribution of fainter cluster galaxies appears to be more extended than the total mass.

Abstract Copyright: 2012 The Authors. Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): gravitational lensing: strong - gravitational lensing: weak - galaxies: clusters: general - dark matter

Status at CDS:  

Simbad objects: 34

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Number of rows : 34

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ZwCl 0024+1652 ClG 00 26 36.0 +17 08 36     18.35     ~ 603 1
2 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 636 0
3 ACO 383 ClG 02 48 06.9 -03 29 32           ~ 296 0
4 ZwCl 0848+3341 ClG 08 51 39.00 +33 31 08.0           ~ 11 0
5 [BWS2010] SDSS J0915+3826 ClG 09 15 41.025 +38 26 55.25           ~ 6 0
6 [BHG2011] SDSS J0957+0509 ClG 09 57 39.19 +05 09 31.9           ~ 10 0
7 ClG J1004+4112 ClG 10 04 34.180 +41 12 43.50           ~ 38 3
8 ClG J1029+2623 ClG 10 29 13.0 +26 23 32           ~ 15 0
9 NAME Cheshire Cat gLS 10 38 43.58 +48 49 17.7           ~ 15 0
10 ClG J1050+0017 ClG 10 50 40.2 +00 17 18           ~ 8 0
11 [BHG2011] RCS2 J1055+5548 ClG 10 55 04.60 +55 48 23.4           ~ 8 0
12 [SAB2013] SDSS J1110+6459 lens gLe 11 10 17.69 +64 59 48.2           ~ 3 0
13 ClG J1115+5319 ClG 11 15 14.85 +53 19 54.6           ~ 33 0
14 [BHG2011] SDSS J1138+2754 ClG 11 38 08.95 +27 54 30.7           ~ 6 0
15 [BHG2011] SDSS J1152+3313 ClG 11 52 00.15 +33 13 42.1           ~ 10 0
16 [BHG2011] SDSS J1152+0930 ClG 11 52 47.39 +09 30 14.8           ~ 8 0
17 SDSSCGB 41791 CGG 12 09 23.69 +26 40 46.7           ~ 18 0
18 [BHG2011] SDSS J1226+2149 ClG 12 26 51.11 +21 49 52.3           ~ 6 0
19 MCS J1226.8+2153 ClG 12 26 51.69 +21 52 25.4           ~ 20 0
20 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1017 0
21 ACO 1703 ClG 13 15 05.2 +51 49 02           ~ 120 0
22 ClG J1315+5439 ClG 13 15 11.3 +54 39 00           ~ 5 0
23 GHO 132029+315500 ClG 13 22 48.77 +31 39 17.8           ~ 10 0
24 ClG J1329+2243 ClG 13 29 30.5 +22 43 02           ~ 9 0
25 CSWA 28 G 13 43 32.8 +41 55 03           ~ 11 0
26 NAME [BWS2010] SDSS J1343+4155 lens ClG 13 43 32.85 +41 55 03.4           ~ 8 0
27 ClG J1347-1145 ClG 13 47 33.5 -11 45 42           ~ 463 0
28 PSZ1 G073.22+67.57 ClG 14 20 40.38 +39 55 10.6           ~ 16 0
29 ClG J1446+3032 ClG 14 46 34.02 +30 32 58.2           ~ 15 0
30 [BHG2011] SDSS J1456+5702 ClG 14 56 00.86 +57 02 20.6           ~ 9 0
31 ZwCl 1529+3425 ClG 15 31 10.60 +34 14 25.0           ~ 19 0
32 [BHG2011] SDSS J1621+0607 ClG 16 21 32.37 +06 07 19.1           ~ 6 0
33 ClG J1632+3500 ClG 16 32 07.9 +35 00 42           ~ 5 0
34 ClG J2111-0115 ClG 21 11 19.34 -01 14 23.5           ~ 12 0

    Equat.    Gal    SGal    Ecl

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2020.06.02-11:16:39

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