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Title: Testing light-traces-mass in Hubble Frontier Fields Cluster MACS-J0416.1-2403

Journal Article · · Monthly Notices of the Royal Astronomical Society
 [1];  [1];  [2];  [3];  [4]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
  2. Univ. of Zurich, Zurich (Switzerland); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Univ. of Zurich, Zurich (Switzerland)
  4. Univ. Hasselt, Diepenbeek (Belgium)

Here, we reconstruct the projected mass distribution of a massive merging Hubble Frontier Fields cluster MACSJ0416 using the genetic algorithm based free-form technique called Grale. The reconstructions are constrained by 149 lensed images identified by Jauzac et al. using HFF data. No information about cluster galaxies or light is used, which makes our reconstruction unique in this regard. Using visual inspection of the maps, as well as galaxy-mass correlation functions we conclude that overall light does follow mass. Furthermore, the fact that brighter galaxies are more strongly clustered with mass is an important confirmation of the standard biasing scenario in galaxy clusters. On the smallest scales, approximately less than a few arcseconds, the resolution afforded by 149 images is still not sufficient to confirm or rule out galaxy-mass offsets of the kind observed in ACO 3827. We also compare the mass maps of MACSJ0416 obtained by three different groups: Grale, and two parametric Lenstool reconstructions from the CATS and Sharon/Johnson teams. Overall, the three agree well; one interesting discrepancy between Grale and Lenstool galaxy-mass correlation functions occurs on scales of tens of kpc and may suggest that cluster galaxies are more biased tracers of mass than parametric methods generally assume.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1350527
Report Number(s):
arXiv:1507.08960; FERMILAB-PUB-15-662-A; 1385859
Journal Information:
Monthly Notices of the Royal Astronomical Society, Vol. 461, Issue 2; ISSN 0035-8711
Publisher:
Royal Astronomical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (17)

Two peculiar fast transients in a strongly lensed host galaxy journal April 2018
The ALMA Frontier Fields Survey: I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223⋆ journal December 2016
From the core to the outskirts: structure analysis of three massive galaxy clusters journal May 2017
Sparse Lens Inversion Technique (SLIT): lens and source separability from linear inversion of the source reconstruction problem journal February 2019
The ALMA Frontier Fields Survey: IV. Lensing-corrected 1.1 mm number counts in Abell 2744, MACS J0416.1–2403 and MACS J1149.5+2223 journal December 2018
The Frontier Fields lens modelling comparison project journal August 2017
Intracluster light: a luminous tracer for dark matter in clusters of galaxies journal October 2018
Extremely Small Sizes for Faint z ∼ 2–8 Galaxies in the Hubble Frontier Fields: A Key Input for Establishing Their Volume Density and UV Emissivity journal June 2017
On the Faint End of the Galaxy Luminosity Function in the Epoch of Reionization: Updated Constraints from the HST Frontier Fields journal November 2018
Searching for Highly Magnified Stars at Cosmological Distances: Discovery of a Redshift 0.94 Blue Supergiant in Archival Images of the Galaxy Cluster MACS J0416.1-2403 journal August 2019
The ALMA Frontier Fields Survey: IV. Lensing-corrected 1.1 mm number counts in Abell 2744, MACS J0416.1−2403, and MACS J1149.5+2223 ( Corrigendum ) journal November 2019
The Frontier Fields Lens Modeling Comparison Project text January 2016
The ALMA Frontier Fields survey I: 1.1 mm continuum detections in Abell 2744, MACSJ0416.1-2403 and MACSJ1149.5+2223 text January 2016
From the core to the outskirts: structure analysis of three massive galaxy clusters text January 2017
Two Peculiar Fast Transients in a Strongly Lensed Host Galaxy preprint January 2017
Intracluster light: a luminous tracer for dark matter in clusters of galaxies text January 2018
Sparse Lens Inversion Technique (SLIT): lens and source separability from linear inversion of the source reconstruction problem text January 2018