2016A&A...588A..99L


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.16CEST06:59:25

2016A&A...588A..99L - Astronomy and Astrophysics, volume 588A, 99-99 (2016/4-1)

Strong-lensing analysis of MACS J0717.5+3745 from Hubble Frontier Fields observations: How well can the mass distribution be constrained ?

LIMOUSIN M., RICHARD J., JULLO E., JAUZAC M., EBELING H., BONAMIGO M., ALAVI A., CLEMENT B., GIOCOLI C., KNEIB J.-P., VERDUGO T., NATARAJAN P., SIANA B., ATEK H. and REXROTH M.

Abstract (from CDS):

We present a strong-lensing analysis of MACSJ0717.5+3745 (hereafter MACS J0717), based on the full depth of the Hubble Frontier Field (HFF) observations, which brings the number of multiply imaged systems to 61, ten of which have been spectroscopically confirmed. The total number of images comprised in these systems rises to 165, compared to 48 images in 16 systems before the HFF observations. Our analysis uses a parametric mass reconstruction technique, as implemented in the Lenstool software, and the subset of the 132 most secure multiple images to constrain a mass distribution composed of four large-scale mass components (spatially aligned with the four main light concentrations) and a multitude of galaxy-scale perturbers. We find a superposition of cored isothermal mass components to provide a good fit to the observational constraints, resulting in a very shallow mass distribution for the smooth (large-scale) component. Given the implications of such a flat mass profile, we investigate whether a model composed of "peaky" non-cored mass components can also reproduce the observational constraints. We find that such a non-cored mass model reproduces the observational constraints equally well, in the sense that both models give comparable total rms. Although the total (smooth dark matter component plus galaxy-scale perturbers) mass distributions of both models are consistent, as are the integrated two-dimensional mass profiles, we find that the smooth and the galaxy-scale components are very different. We conclude that, even in the HFF era, the generic degeneracy between smooth and galaxy-scale components is not broken, in particular in such a complex galaxy cluster. Consequently, insights into the mass distribution of MACS J0717 remain limited, emphasizing the need for additional probes beyond strong lensing. Our findings also have implications for estimates of the lensing magnification. We show that the amplification difference between the two models is larger than the error associated with either model, and that this additional systematic uncertainty is approximately the difference in magnification obtained by the different groups of modelers using pre-HFF data. This uncertainty decreases the area of the image plane where we can reliably study the high-redshift Universe by 50 to 70%.

Abstract Copyright: © ESO, 2016

Journal keyword(s): gravitational lensing: strong - galaxies: clusters: individual: MACS J0717.5+3745

Nomenclature: Table A.2: [LRJ2016] MACS J0717 NN.N (Nos 20.1-20.2 to 82.1-82.2).

Simbad objects: 99

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Number of rows : 99

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 2744 ClG 00 14 20.03 -30 23 17.8           ~ 572 0
2 ACO 383 ClG 02 48 06.9 -03 29 32           ~ 297 0
3 [MEB2009] A ClG 07 17 25.00 +37 45 54.6           ~ 4 0
4 [ZFM2015] M0717 8.3 LeI 07 17 25.546 +37 45 06.70           ~ 4 0
5 [ZFM2015] M0717 15.3 LeI 07 17 25.584 +37 45 16.20           ~ 4 0
6 [ZFM2015] M0717 16.3 LeI 07 17 25.661 +37 45 13.43           ~ 4 0
7 [ZFM2015] M0717 17.3 LeI 07 17 25.966 +37 45 12.71           ~ 4 0
8 [ZFM2015] M0717 16.2 LeI 07 17 26.050 +37 45 34.49           ~ 4 0
9 [ZFM2015] M0717 15.2 LeI 07 17 26.090 +37 45 36.29           ~ 4 0
10 [ZFM2015] M0717 7.3 LeI 07 17 26.160 +37 45 06.59           ~ 2 0
11 [ZFM2015] M0717 17.2 LeI 07 17 26.256 +37 45 31.82           ~ 4 0
12 [ZFM2015] M0717 18.2 LeI 07 17 26.683 +37 45 51.66           ~ 4 0
13 [ZFM2015] M0717 8.2 LeI 07 17 26.890 +37 45 47.41           ~ 4 0
14 [ZFM2015] M0717 6.2 LeI 07 17 27.041 +37 45 09.90           ~ 4 0
15 [ZFM2015] M0717 18.1 LeI 07 17 27.406 +37 46 07.10           ~ 4 0
16 [ZFM2015] M0717 6.1 LeI 07 17 27.434 +37 45 25.56           ~ 4 0
17 [ZFM2015] M0717 7.2 LeI 07 17 27.607 +37 45 50.87           ~ 4 0
18 [LRJ2016] MACS J0717 32.3 LeI 07 17 27.900 +37 44 57.16           ~ 1 0
19 [ZFM2015] M0717 7.1 LeI 07 17 27.970 +37 45 58.90           ~ 4 0
20 [ZFM2015] M0717 8.1 LeI 07 17 27.982 +37 46 10.81           ~ 4 0
21 [LRJ2016] MACS J0717 22.2 LeI 07 17 28.246 +37 45 20.00           ~ 1 0
22 [ZFM2015] M0717 15.1 LeI 07 17 28.253 +37 46 19.24           ~ 4 0
23 [LRJ2016] MACS J0717 22.1 LeI 07 17 28.255 +37 45 21.23           ~ 1 0
24 [LRJ2016] MACS J0717 63.2 LeI 07 17 28.406 +37 45 13.30           ~ 1 0
25 [ZFM2015] M0717 16.1 LeI 07 17 28.589 +37 46 23.88           ~ 4 0
26 [ZFM2015] M0717 17.1 LeI 07 17 28.646 +37 46 18.55           ~ 4 0
27 [LRJ2016] MACS J0717 63.1 LeI 07 17 28.661 +37 45 22.60           ~ 1 0
28 [LRJ2016] MACS J0717 55.2 LeI 07 17 28.858 +37 44 55.47           ~ 1 0
29 [LRJ2016] MACS J0717 74.1 LeI 07 17 29.014 +37 45 04.26           ~ 1 0
30 [LRJ2016] MACS J0717 31.2 LeI 07 17 29.040 +37 45 01.94           ~ 1 0
31 [LRJ2016] MACS J0717 74.3 LeI 07 17 29.114 +37 45 07.11           ~ 1 0
32 [LRJ2016] MACS J0717 62.1 LeI 07 17 29.333 +37 44 50.87           ~ 1 0
33 [LRJ2016] MACS J0717 21.1 LeI 07 17 29.378 +37 44 47.01           ~ 1 0
34 [LRJ2016] MACS J0717 34.3 LeI 07 17 29.592 +37 44 39.16           ~ 1 0
35 [ZFM2015] M0717 6.3 LeI 07 17 29.734 +37 46 11.21           ~ 4 0
36 [LRJ2016] MACS J0717 50.1 LeI 07 17 29.866 +37 44 37.45           ~ 1 0
37 [LRJ2016] MACS J0717 31.1 LeI 07 17 29.933 +37 45 22.85           ~ 1 0
38 [LRJ2016] MACS J0717 72.2 LeI 07 17 29.954 +37 45 44.45           ~ 1 0
39 [LRJ2016] MACS J0717 70.3 LeI 07 17 30.026 +37 44 09.40           ~ 1 0
40 [LRJ2016] MACS J0717 62.2 LeI 07 17 30.122 +37 45 08.19           ~ 1 0
41 [RJL2014] MACS J0717 4.2 LeG 07 17 30.324 +37 44 40.70         23.84 ~ 6 0
42 [LRJ2016] MACS J0717 21.2 LeI 07 17 30.415 +37 45 07.30           ~ 1 0
43 [LRJ2016] MACS J0717 59.1 LeI 07 17 30.442 +37 44 35.68           ~ 1 0
44 [ZFM2015] M0717 13.2 LeI 07 17 30.610 +37 44 22.85           ~ 4 0
45 [RJL2014] MACS J0717 12.2 LeG 07 17 30.617 +37 44 34.51         25.70 ~ 7 0
46 [ZFM2015] M0717 5.2 LeI 07 17 30.694 +37 44 34.19           ~ 5 0
47 [LRJ2016] MACS J0717 34.2 LeI 07 17 30.986 +37 45 04.42           ~ 1 0
48 [LRJ2016] MACS J0717 58.1 LeI 07 17 31.061 +37 45 44.58           ~ 1 0
49 [LRJ2016] MACS J0717 82.2 LeI 07 17 31.080 +37 45 22.69           ~ 1 0
50 [RJL2014] MACS J0717 14.2 LeG 07 17 31.111 +37 44 22.92         25.28 ~ 6 0
51 [ZFM2015] M0717 5.1 LeI 07 17 31.169 +37 44 48.73           ~ 6 0
52 [LRJ2016] MACS J0717 72.1 LeI 07 17 31.229 +37 45 55.79           ~ 1 0
53 [MEB2009] B ClG 07 17 31.30 +37 45 30.3           ~ 4 0
54 [LRJ2016] MACS J0717 71.2 LeI 07 17 31.356 +37 44 28.85           ~ 1 0
55 [RJL2014] MACS J0717 4.1 LeG 07 17 31.440 +37 45 01.55         22.99 ~ 6 0
56 [KOI2016] HFF3C-3145-3537 LeG 07 17 31.450 +37 43 53.78         28.83 ~ 5 0
57 [LRJ2016] MACS J0717 31.3 LeI 07 17 31.586 +37 45 53.90           ~ 1 0
58 [LRJ2016] MACS J0717 71.1 LeI 07 17 31.848 +37 44 40.96           ~ 1 0
59 [LRJ2016] MACS J0717 82.1 LeI 07 17 32.078 +37 45 58.13           ~ 1 0
60 [ZFM2015] M0717 1.4 LeI 07 17 32.234 +37 44 13.13           ~ 4 0
61 [RJL2014] MACS J0717 12.1 LeG 07 17 32.438 +37 45 06.80         24.77 ~ 7 0
62 [ZFM2015] M0717 13.1 LeI 07 17 32.522 +37 45 02.30           ~ 5 0
63 [MEB2009] D ClG 07 17 33.00 +37 44 15.0           ~ 4 0
64 [RJL2014] MACS J0717 14.1 LeG 07 17 33.305 +37 45 07.96         23.26 ~ 6 0
65 [LRJ2016] MACS J0717 70.2 LeI 07 17 33.451 +37 45 26.20           ~ 1 0
66 [RJL2014] MACS J0717 2.2 LeI 07 17 33.690 +37 44 21.30           ~ 2 0
67 [ZFM2015] M0717 1.3 LeI 07 17 33.823 +37 44 17.88           ~ 4 0
68 [LRJ2016] MACS J0717 80.1 LeI 07 17 33.826 +37 44 01.06           ~ 1 0
69 [RJL2014] MACS J0717 4.3 LeG 07 17 33.828 +37 45 47.77         21.56 ~ 5 0
70 [RJL2014] MACS J0717 12.3 LeG 07 17 33.890 +37 45 38.38         25.14 ~ 7 0
71 [LRJ2016] MACS J0717 70.1 LeI 07 17 34.130 +37 45 37.79           ~ 1 0
72 [LRJ2016] MACS J0717 68.1 LeG 07 17 34.1604 +37 44 17.098         27.22 ~ 5 0
73 [RJL2014] MACS J0717 2.1 LeI 07 17 34.260 +37 44 27.78           ~ 2 0
74 [TSB2015] GLASS MACS0717-90378 LeI 07 17 34.31421 +37 44 19.1310           ~ 2 0
75 [LRJ2016] MACS J0717 49.2 LeI 07 17 34.320 +37 43 50.92           ~ 1 0
76 [ZFM2015] M0717 1.2 LeI 07 17 34.514 +37 44 24.43           ~ 4 0
77 [RJL2014] MACS J0717 3.2 LeG 07 17 34.656 +37 44 21.08         25.13 ~ 6 0
78 [ZFM2015] M0717 1.1 LeI 07 17 34.865 +37 44 28.39           ~ 4 0
79 [RJL2014] MACS J0717 14.3 LeG 07 17 35.076 +37 45 37.19         24.15 ~ 6 0
80 [ZFM2015] M0717 13.3 LeI 07 17 35.083 +37 45 48.20           ~ 5 0
81 [LRJ2016] MACS J0717 27.1 LeI 07 17 35.374 +37 44 52.38           ~ 1 0
82 [LRJ2016] MACS J0717 27.2 LeI 07 17 35.414 +37 44 51.24           ~ 1 0
83 [RJL2014] MACS J0717 3.1 LeG 07 17 35.645 +37 44 29.44         24.99 ~ 6 0
84 [MEB2009] C ClG 07 17 35.80 +37 45 01.0           ~ 4 0
85 [ZFM2015] M0717 5.3 LeI 07 17 36.000 +37 46 02.75           ~ 5 0
86 [LRJ2016] MACS J0717 80.2 LeI 07 17 36.060 +37 44 18.59           ~ 1 0
87 [LRJ2016] MACS J0717 29.1 LeI 07 17 36.209 +37 44 35.43           ~ 1 0
88 ClG J0717+3745 ClG 07 17 36.50 +37 45 23.0           ~ 358 0
89 [LRJ2016] MACS J0717 39.1 LeI 07 17 36.545 +37 43 52.44           ~ 1 0
90 [LRJ2016] MACS J0717 71.3 LeI 07 17 36.612 +37 45 49.00           ~ 1 0
91 [LRJ2016] MACS J0717 49.1 LeI 07 17 36.672 +37 43 59.74           ~ 1 0
92 [LRJ2016] MACS J0717 39.2 LeI 07 17 37.188 +37 43 57.07           ~ 1 0
93 [ZFM2015] M0717 1.5 LeI 07 17 37.385 +37 45 40.95           ~ 4 0
94 [RJL2014] MACS J0717 3.3 LeG 07 17 37.700 +37 45 13.86         25.77 ~ 5 0
95 [KOI2016] HFF3C-3785-4338 LeG 07 17 37.860 +37 44 33.87         27.99 ~ 8 0
96 [BIO2017] M0717I-7381745168 LeG 07 17 38.170 +37 45 16.87         28.39 ~ 9 0
97 [LRJ2016] MACS J0717 80.3 LeI 07 17 38.419 +37 45 12.87           ~ 1 0
98 MCS J1149.5+2223 ClG 11 49 35.8 +22 23 55           ~ 323 0
99 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1022 0

    Equat.    Gal    SGal    Ecl

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2020.07.16-06:59:25

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