CLASH-VLT: A highly precise strong lensing model of the galaxy cluster RXC J2248.7−4431 (Abell S1063) and prospects for cosmography

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Volume 587 (March 2016)

A&A, 587 (2016) A80

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Table 1

Multiple image systems.


ID	RA	Dec	z_spec	z_model	μ


2a	342.19559	−44.52839	1.229^a,b,d	−		22.59 ± 0.01
2b	342.19483	−44.52735	1.229^a,b,d	−		22.89 ± 0.01
2c	342.18631	−44.52107	1.229^a,b	−		22.91 ± 0.02

3a	342.19269	−44.53118	1.260^a,b	−		24.56 ± 0.04
3b^∗	342.19212	−44.52984	1.260^a,b	−	^†	23.78 ± 0.02
3c	342.17986	−44.52156	1.260^d	−		24.62 ± 0.04

4a	342.19317	−44.53652	−	−		−	−
4b	342.18782	−44.52730	1.398^a,b	−		22.65 ± 0.04
4c	342.17919	−44.52358	1.398^a,b,d	−		23.81 ± 0.03

6a	342.18847	−44.53998	1.428^a,b,e	−		22.59 ± 0.01
6b	342.17585	−44.53254	1.428^e	−		22.19 ± 0.02
6c	342.17420	−44.52831	1.428^d,e	−		22.51 ± 0.01

7a	342.18006	−44.53842	1.035^e	−		23.68 ± 0.04
7b	342.17554	−44.53590	1.035^e	−		−	−
7c	342.17191	−44.53023	1.035^e	−		24.05 ± 0.04

8a^∗	342.18006	−44.53842	1.837^a	−	^†	23.73 ± 0.01
8b^∗	342.17554	−44.53590	1.837^a	−	^†	24.55 ± 0.04
8c^∗	342.17191	−44.53023	−	−	^†	24.71 ± 0.04

9a	342.18030	−44.54082	−			24.63 ± 0.06
9b	342.17480	−44.53860	−	′′		25.01 ± 0.08
9c	342.16779	−44.52627	−	′′		25.79 ± 0.11

11a^*	342.17505	−44.54102	3.116^e	−	^†	25.85 ± 0.08
11b^*	342.17315	−44.53999	3.116^a,b,e	−	^†	25.54 ± 0.06
11c^*	342.16557	−44.52953	−	−	^†	27.26 ± 0.20

13a	342.19369	−44.53014	−			26.40 ± 0.17
13b	342.19331	−44.52942	−	′′		−	−

14a	342.19088	−44.53747	6.112^b,c,e	−		25.74 ± 0.08
14b	342.18106	−44.53462	6.111^b,c,e	−		25.47 ± 0.24
14c	342.18904	−44.53004	−	−		25.11 ± 0.07
14d	342.17129	−44.51982	6.111^b,c	−		27.85 ± 0.60
14e	342.18408	−44.53162	−	−	−	−	−

15a	342.19254	−44.53439	−			25.27 ± 0.07
15b	342.19171	−44.53055	−	′′		25.56 ± 0.08
15c	342.17369	−44.51940	−	′′		26.94 ± 0.16

16a	342.17728	−44.54069	−			26.72 ± 0.30
16b	342.17163	−44.53717	−	′′		26.16 ± 0.21
16c^∗	342.16894	−44.53256	−	′′	−	26.42 ± 0.31	−

17a	342.17779	−44.54306	−			25.79 ± 0.14
17b^∗	342.16681	−44.53493	−	′′	−	−	−
17c	342.16621	−44.53363	−	′′		25.52 ± 0.07

18a	342.18150	−44.53936	4.113^e	−		26.88 ± 0.26
18b	342.17918	−44.53870	4.113^e	−		27.37 ± 0.23

20a	342.18745	−44.53869	3.118^a			25.40 ± 0.07
20b	342.17886	−44.53587	3.118^a	′′		25.94 ± 0.07
20c	342.17065	−44.52209	−	′′		26.13 ± 0.13

21a	342.18586	−44.53883	−			25.91 ± 0.11
21b	342.17892	−44.53668	−	′′		−	−
21c	342.16981	−44.52192	−	′′		25.91 ± 0.13

Notes. Properties of the multiple images. The coordinates correspond to the luminosity peak used in the strong lensing models. Best-fit redshifts and magnifications with 68% confidence level errors (columns z_model and μ, respectively) are computed using the model F2 (see Sect. 4). Observed magnitudes in the F814W filter () are Kron magnitudes measured with SExtractor. In the last column, the unlensed magnitudes are shown.

^(*)

Multiple images close to a cluster member, or possibly lensed by LOS structures, or not secure counter image (not used in the model).

^(†)

Magnification given by the model ID F2a. For family 11, we quote the values at the model-predicted positions (see text for details).

Reference.

^(a)

This work.

^(b)

Balestra et al. (2013). Independent redshift measuremenst by:

^(c)

Boone et al. (2013);

^(d)

Richard et al. (2014);

^(e)

Karman et al. (2015).

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