The dark matter environment of the Abell 901/902 supercluster: A weak lensing analysis of the HST STAGES survey
dc.contributor.author | Heymans, Catherine | |
dc.contributor.author | Gray, M E | |
dc.contributor.author | Peng, Chien Y | |
dc.contributor.author | van Waerbeke, L | |
dc.contributor.author | Bell, Eric F | |
dc.contributor.author | Wolf, Christian | |
dc.contributor.author | Bacon, David | |
dc.contributor.author | Balogh, M | |
dc.contributor.author | Barazza, Fabio D | |
dc.contributor.author | Barden, M | |
dc.contributor.author | Bohm, Asmus | |
dc.date.accessioned | 2015-12-13T22:18:02Z | |
dc.date.issued | 2008 | |
dc.date.updated | 2015-12-11T07:40:49Z | |
dc.description.abstract | We present a high-resolution dark matter reconstruction of the z = 0.165 Abell 901/902 supercluster from a weak lensing analysis of the Hubble Space Telescope STAGES survey. We detect the four main structures of the supercluster at high significance, resolving substructure within and between the clusters. We find that the distribution of dark matter is well traced by the cluster galaxies, with the brightest cluster galaxies marking out the strongest peaks in the dark matter distribution. We also find a significant extension of the dark matter distribution of Abell 901a in the direction of an infalling X-ray group Abell 901α. We present mass, mass-to-light and mass-to-stellar mass ratio measurements of the structures and substructures that we detect. We find no evidence for variation of the mass-to-light and mass-to-stellar mass ratio between the different clusters. We compare our space-based lensing analysis with an earlier ground-based lensing analysis of the supercluster to demonstrate the importance of space-based imaging for future weak lensing dark matter 'observations'. | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | http://hdl.handle.net/1885/71447 | |
dc.publisher | Blackwell Publishing Ltd | |
dc.source | Monthly Notices of the Royal Astronomical Society | |
dc.subject | Keywords: Cosmology: observations; Dark matter; Galaxies: cluster; Large-scale structure of Universe | |
dc.title | The dark matter environment of the Abell 901/902 supercluster: A weak lensing analysis of the HST STAGES survey | |
dc.type | Journal article | |
local.bibliographicCitation.issue | 3 | |
local.bibliographicCitation.lastpage | 1442 | |
local.bibliographicCitation.startpage | 1431 | |
local.contributor.affiliation | Heymans, Catherine, University of British Columbia | |
local.contributor.affiliation | Gray, M E, University of Nottingham | |
local.contributor.affiliation | Peng, Chien Y, National Research Council of Canada | |
local.contributor.affiliation | van Waerbeke, L, University of British Columbia | |
local.contributor.affiliation | Bell, Eric F, Max-Planck-Institute fur Astronomie | |
local.contributor.affiliation | Wolf, Christian, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Bacon, David, University of Portsmouth | |
local.contributor.affiliation | Balogh, M, University of Waterloo | |
local.contributor.affiliation | Barazza, Fabio D, Ecole Polytechnique Federale de Lausanne (EPFL) | |
local.contributor.affiliation | Barden, M, University of Innsbruck | |
local.contributor.affiliation | Bohm, Asmus, Astrophysikalisches Institut Potsdam | |
local.contributor.authoremail | u5281441@anu.edu.au | |
local.contributor.authoruid | Wolf, Christian, u5281441 | |
local.description.embargo | 2037-12-31 | |
local.description.notes | Imported from ARIES | |
local.identifier.absfor | 020103 - Cosmology and Extragalactic Astronomy | |
local.identifier.ariespublication | U3488905xPUB2719 | |
local.identifier.citationvolume | 385 | |
local.identifier.doi | 10.1111/j.1365-2966.2008.12919.x | |
local.identifier.scopusID | 2-s2.0-41649099305 | |
local.identifier.uidSubmittedBy | U3488905 | |
local.type.status | Published Version |
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