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http://hdl.handle.net/1942/22976
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DC Field | Value | Language |
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dc.contributor.author | Priewe, Jett | - |
dc.contributor.author | Williams, Liliya | - |
dc.contributor.author | LIESENBORGS, Jori | - |
dc.contributor.author | Coe, Dan | - |
dc.contributor.author | Rodney, Steven | - |
dc.date.accessioned | 2017-01-05T09:15:47Z | - |
dc.date.available | 2017-01-05T09:15:47Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Monthly notices of the Royal Astronomical Society (Print), 465(1), p. 1030-1045 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/1942/22976 | - |
dc.description.abstract | Using the power of gravitational lensing magnification by massive galaxy clusters, the Hubble Frontier Fields provide deep views of six patches of the high redshift Universe. The combination of deep Hubble imaging and exceptional lensing strength has revealed the greatest numbers of multiply-imaged galaxies available to constrain models of cluster mass distributions. However, even with O(100) images per cluster, the uncertainties associated with the reconstructions are not negligible. The goal of this paper is to show the diversity of model magnification predictions. We examine 7 and 9 mass models of Abell 2744 and MACS J0416, respectively, submitted to the Mikulski Archive for Space Telescopes for public distribution in September 2015. The dispersion between model predictions increases from 30% at common low magnifications (µ∼2) to 70% at rare high magnifications (µ∼40). MACS J0416 exhibits smaller dispersions than Abell 2744 for 2< µ<10. We show that magnification maps based on different lens inversion techniques typically differ from each other by more than their quoted statistical errors. This suggests that some models underestimate the true uncertainties, which are primarily due to various lensing degeneracies. Though the exact mass sheet degeneracy is broken, its generalized counterpart is not broken at least in Abell 2744. Other, local degeneracies are also present in both clusters. Our comparison of models is complementary to the comparison of reconstructions of known synthetic mass distributions. By focusing on observed clusters, we can identify those that are best constrained, and therefore provide the clearest view of the distant Universe. | - |
dc.description.sponsorship | We are grateful to all those who contributed to the data used here: Anahita Alavi, Marusa Bradac, Gabe Brammer, Benjamin Clement, Jose Diego, Claudio Grillo, Austin Hoag, Jens Hjorth, Mathilde Jauzac, Traci Johnson, RyotaKawamata, Jean-Paul-Kneib, Daniel Lam, Priya Natarajan, Masamune Oguri Johan Richard, Kevin Sebesta, Jonatan Selsing, Irene Sendra, Keren Sharon, Brian Siana, Tomasso Treu, Xin Wang and Adi Zitrin. We would like to thank Minnesota Supercomputing Institute whose technical support and computer resources were invaluable in producing the GRALE set of models. Financial support for this work was provided to SAR by NASA through grant HST-GO-13386 from the Space Telescope Science Institute (STScI), which is operated by Associated Universities for Research in Astronomy, Inc. (AURA), under NASA contract NAS 5-26555. The background HFF images of Abell 2744 and MACS J0416 in Fig. 4 were taken from https://www.spacetelescope.org/images/heic1111c and https://frontierfields.org/meet-the-frontier-fields/, respectively. We thank the referee for the careful reading of the manuscript and suggestions that helped improve the paper. | - |
dc.language.iso | en | - |
dc.rights | (c) 2016 RAS | - |
dc.subject.other | gravitational lensing; strong – galaxies; clusters; individual; Abell 2744 MACS J0416 | - |
dc.title | Lens Models Under the Microscope: Comparison of Hubble Frontier Field Cluster Magnification Maps | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 1045 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 1030 | - |
dc.identifier.volume | 465 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Priewe, J; Williams, LLR (reprint author), Univ Minnesota, Sch Phys & Astron, 116 Church St SE, Minneapolis, MN 55455 USA. priew004@umn.edu; llrw@astro.umn.edu | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.class | dsPublValOverrule/author_version_not_expected | - |
dc.identifier.doi | 10.1093/mnras/stw2785 | - |
dc.identifier.isi | 000393782000072 | - |
dc.identifier.url | https://arxiv.org/pdf/1605.07621v2.pdf | - |
dc.identifier.url | https://www.researchgate.net/publication/303520972_Lens_Models_Under_the_Microscope_Comparison_of_Hubble_Frontier_Field_Cluster_Magnification_Maps | - |
item.fullcitation | Priewe, Jett; Williams, Liliya; LIESENBORGS, Jori; Coe, Dan & Rodney, Steven (2017) Lens Models Under the Microscope: Comparison of Hubble Frontier Field Cluster Magnification Maps. In: Monthly notices of the Royal Astronomical Society (Print), 465(1), p. 1030-1045. | - |
item.validation | ecoom 2018 | - |
item.contributor | Priewe, Jett | - |
item.contributor | Williams, Liliya | - |
item.contributor | LIESENBORGS, Jori | - |
item.contributor | Coe, Dan | - |
item.contributor | Rodney, Steven | - |
item.fulltext | With Fulltext | - |
item.accessRights | Open Access | - |
crisitem.journal.issn | 0035-8711 | - |
crisitem.journal.eissn | 1365-2966 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1605.07621v2.pdf | Peer-reviewed author version | 7.1 MB | Adobe PDF | View/Open |
priewe2016.pdf Restricted Access | Published version | 6.39 MB | Adobe PDF | View/Open Request a copy |
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