Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing

dc.contributor.authorSimon, P
dc.contributor.authorHeymans, Catherine
dc.contributor.authorSchrabback, T
dc.contributor.authorTaylor, A N
dc.contributor.authorGray, M E
dc.contributor.authorvan Waerbeke, L
dc.contributor.authorWolf, Christian
dc.contributor.authorBacon, David
dc.contributor.authorBarden, M
dc.contributor.authorBohm, A
dc.contributor.authorHaussler, Boris
dc.date.accessioned2015-12-13T22:17:46Z
dc.date.issued2012
dc.date.updated2016-02-24T10:01:58Z
dc.description.abstractWe present weak lensing data from the Hubble Space Telescope(HST)/Space Telescope A901/902 Galaxy Evolution Survey (STAGES) survey to study the three-dimensional spatial distribution of matter and galaxies in the Abell 901/902 supercluster complex. Our method improves over the existing 3D lensing mapping techniques by calibrating and removing redshift bias and accounting for the effects of the radial elongation of 3D structures. We also include the first detailed noise analysis of a 3D lensing map, showing that even with deep HST-quality data, only the most massive structures, for example M200≳ 1015M⊙h-1 at z∼ 0.8, can be resolved in 3D with any reasonable redshift accuracy (Δz≈ 0.15). We compare the lensing map to the stellar mass distribution and find luminous counterparts for all mass peaks detected with a peak significance >3σ. We see structures in and behind the z= 0.165 foreground supercluster, finding structure directly behind the A901b cluster at z∼ 0.6 and also behind the south-west (SW) group at z∼ 0.7. This 3D structure viewed in projection has no significant impact on recent mass estimates of A901b or the SW group components SWa and SWb.
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/71314
dc.publisherBlackwell Publishing Ltd
dc.rightsAuthor/s retain copyrighten_AU
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.subjectKeywords: Cosmology: observations; Dark matter; Gravitational lensing: weak; Large-scale structure of Universe
dc.titleSpatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing
dc.typeJournal article
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue2
local.bibliographicCitation.lastpage1016
local.bibliographicCitation.startpage998
local.contributor.affiliationSimon, P, University of Edinburgh
local.contributor.affiliationHeymans, Catherine, University of Edinburgh
local.contributor.affiliationSchrabback, T, Leiden University
local.contributor.affiliationTaylor, A N, University of Edinburgh
local.contributor.affiliationGray, M E, University of Nottingham
local.contributor.affiliationvan Waerbeke, L, University of British Columbia
local.contributor.affiliationWolf, Christian, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBacon, David, University of Portsmouth
local.contributor.affiliationBarden, M, University of Innsbruck
local.contributor.affiliationBohm, A, University of Innsbruck
local.contributor.affiliationHaussler, Boris, University of Nottingham
local.contributor.authoremailu5281441@anu.edu.au
local.contributor.authoruidWolf, Christian, u5281441
local.description.notesImported from ARIES
local.identifier.absfor020103 - Cosmology and Extragalactic Astronomy
local.identifier.ariespublicationU3488905xPUB2657
local.identifier.citationvolume419
local.identifier.doi10.1111/j.1365-2966.2011.19760.x
local.identifier.scopusID2-s2.0-83855164016
local.identifier.uidSubmittedByU3488905
local.type.statusPublished Version

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