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http://hdl.handle.net/1942/22039
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DC Field | Value | Language |
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dc.contributor.author | Sebesta, Kevin | - |
dc.contributor.author | Williams, Liliya L.R. | - |
dc.contributor.author | Mohammed, Irshad | - |
dc.contributor.author | Saha, Prasenjit | - |
dc.contributor.author | LIESENBORGS, Jori | - |
dc.date.accessioned | 2016-09-15T13:13:14Z | - |
dc.date.available | 2016-09-15T13:13:14Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Monthly notices of the Royal Astronomical Society, 461(2), p. 2126-2134 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/1942/22039 | - |
dc.description.abstract | 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. | - |
dc.description.sponsorship | KS and LLRW acknowledge the computational resources and support of the Minnesota Supercomputing Institute. JL acknowledges the use of the computational resources and services provided by the VSC (Flemish Supercomputer Center), funded by the Hercules Foundation and the Flemish Government – department EWI. LLRW would like to thank Nina A. Rodrigues for bringing the work of Jin Koda and collaborators to her attention. IM is supported by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359 with the United States Department of Energy. | - |
dc.language.iso | en | - |
dc.rights | © 2015 The Authors | - |
dc.subject.other | gravitational lensing: strong; galaxies: clusters: individual: MACS J0416.1+2403 | - |
dc.title | Testing light-traces-mass in Hubble Frontier Fields Cluster MACS-J0416.1-2403 | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 2134 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | 2126 | - |
dc.identifier.volume | 461 | - |
local.bibliographicCitation.jcat | A1 | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.type.programme | VSC | - |
dc.identifier.doi | 10.1093/mnras/stw1433 | - |
dc.identifier.isi | 000383273600074 | - |
item.contributor | Sebesta, Kevin | - |
item.contributor | Williams, Liliya L.R. | - |
item.contributor | Mohammed, Irshad | - |
item.contributor | Saha, Prasenjit | - |
item.contributor | LIESENBORGS, Jori | - |
item.validation | ecoom 2017 | - |
item.fulltext | With Fulltext | - |
item.accessRights | Restricted Access | - |
item.fullcitation | Sebesta, Kevin; Williams, Liliya L.R.; Mohammed, Irshad; Saha, Prasenjit & LIESENBORGS, Jori (2016) Testing light-traces-mass in Hubble Frontier Fields Cluster MACS-J0416.1-2403. In: Monthly notices of the Royal Astronomical Society, 461(2), p. 2126-2134. | - |
crisitem.journal.issn | 0035-8711 | - |
crisitem.journal.eissn | 1365-2966 | - |
Appears in Collections: | Research publications |
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10.1093@mnras@stw1433.pdf Restricted Access | Published version | 2.37 MB | Adobe PDF | View/Open Request a copy |
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