2008A&A...481...65H


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.21CET18:43:13

2008A&A...481...65H - Astronomy and Astrophysics, volume 481, 65-77 (2008/4-1)

The mass distribution of RX J1347-1145 from strong lensing.

HALKOLA A., HILDEBRANDT H., SCHRABBACK T., LOMBARDI M., BRADAC M., ERBEN T., SCHNEIDER P. and WUTTKE D.

Abstract (from CDS):

We determine the central mass distribution of galaxy cluster RX J1347-1145 using strong gravitational lensing. High-resolution HST/ACS images of the galaxy cluster RX J1347-1145 have enabled us to identify several new multiple-image candidates in the cluster, including a 5-image system with a central image. The multiple-images allow us to construct an accurate 2-dimensional mass map of the central part of the cluster. The modelling of the cluster mass includes the most prominent cluster galaxies modelled as truncated isothermal spheres and a smooth halo component that is described with 2 parametric profiles. The mass reconstruction is done using a Markov chain Monte Carlo method that provides us with a total projected mass density, as well as with estimates for the parameters of interest and their respective errors. Inside the Einstein radius of the cluster (∼35", or ∼200kpc, for a source at redshift 1.8), we obtain a total mass of (2.6±0.1)x1014M. The mass profile of the cluster is well-fitted by both a Navarro, Frenk, and White profile with a moderate concentration of c=5.3+0.4–0.6 and r200=3.3+0.2–0.1Mpc, and a non-singular isothermal sphere with velocity dispersion σ=1949±40km/s and a core radius of rc=20±2". The mass profile agrees with previous mass estimates based on the X-ray emission from the hot intra-cluster gas, although the X-ray mass estimates are systematically lower than what we obtain with gravitational lensing.

Abstract Copyright:

Journal keyword(s): gravitational lensing - galaxies: clusters: individual: RX J1347-1145 - galaxies: clusters: general - cosmology: dark matter

Nomenclature: Table A1, Figs 2, A: [HHS2008] NNa N=30.

Simbad objects: 38

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Number of rows : 38

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 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1003 0
2 [HHS2008] 5b LeI 13 47 27.691 -11 45 51.07           ~ 3 0
3 [HHS2008] 5c LeI 13 47 27.770 -11 45 54.58           ~ 2 0
4 [HHS2008] 5a LeI 13 47 27.962 -11 45 56.36           ~ 3 0
5 [KS2014] 1.5 LeI 13 47 28.680 -11 44 50.32           ~ 4 0
6 [HHS2008] 11b LeI 13 47 29.078 -11 44 54.09           ~ 3 0
7 [HHS2008] 6a LeI 13 47 29.256 -11 45 54.36           ~ 3 0
8 [HHS2008] 2b LeI 13 47 29.297 -11 45 39.86     21.5     ~ 9 0
9 [HHS2008] 11c LI? 13 47 29.354 -11 45 26.02           ~ 1 0
10 [BSE2008] B1 LeI 13 47 29.400 -11 44 47.29           ~ 3 0
11 [BSE2008] B3 LeI 13 47 29.558 -11 44 44.92           ~ 3 0
12 [HHS2008] 12a LI? 13 47 30.078 -11 44 40.69           ~ 2 0
13 [KS2014] 1.4 LeI 13 47 30.614 -11 45 33.72           ~ 4 0
14 [BSE2008] D2 LeI 13 47 30.778 -11 44 58.78           ~ 3 0
15 [HHS2008] 9a LeI 13 47 30.797 -11 44 57.10           ~ 3 0
16 [KS2014] 1.3 LeI 13 47 30.886 -11 45 12.11           ~ 4 0
17 [HHS2008] 10b LeI 13 47 30.938 -11 44 58.82           ~ 2 0
18 [HHS2008] 10a LeI 13 47 30.994 -11 44 56.89           ~ 2 0
19 [HHS2008] 4a X 13 47 31.21 -11 44 38.9     23.6     ~ 6 0
20 [KS2014] 2.1 LeI 13 47 31.810 -11 45 51.76     22.7     ~ 10 0
21 [KS2014] 4.2 LeI 13 47 31.886 -11 44 28.36           ~ 4 0
22 [HHS2008] 3a LeI 13 47 32.11 -11 44 42.4     22.3     ~ 8 0
23 [KS2014] 4.1 LeI 13 47 32.172 -11 44 30.35           ~ 4 0
24 [HHS2008] 13a LI? 13 47 32.308 -11 45 30.59           ~ 1 0
25 [KS2014] 1.2 LeI 13 47 32.424 -11 44 54.20           ~ 4 0
26 [HHS2008] 9c LI? 13 47 32.598 -11 45 40.95           ~ 1 0
27 [KS2014] 1.1 LeI 13 47 32.990 -11 45 26.94           ~ 4 0
28 ClG J1347-1145 ClG 13 47 33.5 -11 45 42           ~ 453 0
29 [HHS2008] 11d LI? 13 47 33.909 -11 45 37.53           ~ 1 0
30 [HHS2008] 12c LI? 13 47 33.989 -11 45 34.45           ~ 1 0
31 [KS2014] 4.3 LeG 13 47 34.152 -11 45 05.62           ~ 3 0
32 [HHS2008] 7a LI? 13 47 34.797 -11 45 01.50           ~ 1 0
33 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 774 1
34 ACO 2390 ClG 21 53 34.6 +17 40 11           ~ 614 2
35 [BES2005] D3 LeI ~ ~           ~ 3 0
36 [BES2005] D4 LeI ~ ~           ~ 3 0
37 [BES2005] D2 LeI ~ ~           ~ 3 0
38 [BES2005] D1 LeI ~ ~           ~ 3 0

    Equat.    Gal    SGal    Ecl

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2019.11.21-18:43:13

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