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The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies

De Propris, Roberto; Couch, Warrick; Colless, Matthew; Dalton, Gavin; Collins, Chris; Baugh, Carlton M; Jackson, Carole; Peterson, B.A

Description

We have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a...[Show more]

dc.contributor.authorDe Propris, Roberto
dc.contributor.authorCouch, Warrick
dc.contributor.authorColless, Matthew
dc.contributor.authorDalton, Gavin
dc.contributor.authorCollins, Chris
dc.contributor.authorBaugh, Carlton M
dc.contributor.authorJackson, Carole
dc.contributor.authorPeterson, B.A
dc.date.accessioned2003-04-04
dc.date.accessioned2004-05-19T04:10:37Z
dc.date.accessioned2011-01-05T08:53:17Z
dc.date.available2004-05-19T04:10:37Z
dc.date.available2011-01-05T08:53:17Z
dc.date.created2002
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/40006
dc.identifier.urihttp://digitalcollections.anu.edu.au/handle/1885/40006
dc.description.abstractWe have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a function of redshift, and their velocity dispersion distributions. We find that the Abell and EDCC catalogues are contaminated at the level of about 10 per cent, whereas the APM catalogue suffers only 5 per cent contamination. If we use the original catalogue centroids, the level of contamination rises to approximately 15 per cent for the Abell and EDCC catalogues, showing that the presence of foreground and background groups may alter the richness of clusters in these catalogues. There is a deficiency of clusters at z~0.05 that may correspond to a large underdensity in the Southern hemisphere. From the cumulative distribution of velocity dispersions for these clusters, we derive a space density of σ>1000kms-1 clusters of 3.6×10-6h3Mpc-3. This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.
dc.format.extent946082 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherBlackwell Publishing Ltd
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.subjectastronomical databases: miscellaneous - surveys - galaxies: clusters: general - galaxies: distances and redshifts - cosmology: observations
dc.titleThe 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies
dc.typeJournal article
local.description.refereedyes
local.identifier.citationmonthjan
local.identifier.citationpages87-101
local.identifier.citationpublicationRoyal Astronomical Society, Monthly Notices
local.identifier.citationvolume329
local.identifier.citationyear2002
local.identifier.eprintid1140
local.rights.ispublishedyes
dc.date.issued2002
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationMigratedxPub4159
local.type.statusPublished Version
local.contributor.affiliationde Propris, Roberto, University of New South Wales
local.contributor.affiliationColless, Matthew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCouch, Warrick, University of New South Wales
local.contributor.affiliationDalton, Gavin, University of Oxford
local.contributor.affiliationCollins, Chris, Liverpool John Moores University
local.contributor.affiliationBaugh, Carlton M, University of Durham
local.contributor.affiliationBland-Hawthorn, Joss, Anglo-Australian Observatory
local.contributor.affiliationBridges, Terry C, Queen's University
local.contributor.affiliationCannon, Russell, Anglo-Australian Observatory
local.contributor.affiliationCole, Shaun, University of Durham
local.contributor.affiliationCross, Nicholas J G, Johns Hopkins University
local.contributor.affiliationDeeley, Kathryn, University of New South Wales
local.contributor.affiliationDriver, Simon P, University of St Andrews
local.contributor.affiliationEfstathiou, George, University of Cambridge
local.contributor.affiliationEllis, Richard S, California Institute of Technology
local.contributor.affiliationFrenk, Carlos S, University of Durham
local.contributor.affiliationGlazebrook, Karl, Johns Hopkins University
local.contributor.affiliationJackson, Carole, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationLahav, Ofer, University of Cambridge
local.contributor.affiliationLewis, Ian, University of Oxford
local.contributor.affiliationLumsden, Stuart, University of Leeds
local.contributor.affiliationMaddox, Steve J, University of Nottingham
local.contributor.affiliationMadgwick, Darren, University of California
local.contributor.affiliationMoody, Stephen, Royal Observatory Edinburgh
local.contributor.affiliationNorberg, Peder, Swiss Federal Institute of Technology (ETH)
local.contributor.affiliationPeacock, John A, University of Edinburgh
local.contributor.affiliationPercival, Will J, University of Edinburgh
local.contributor.affiliationSutherland, William J, University of Cambridge
local.contributor.affiliationPeterson, Bruce, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationTaylor, Keith, Anglo-Australian Observatory
local.bibliographicCitation.startpage87
local.bibliographicCitation.lastpage101
local.identifier.doi10.1046/j.1365-8711.2002.04958.x
dc.date.updated2015-12-11T08:45:48Z
local.identifier.scopusID2-s2.0-4243514952
CollectionsANU Research Publications

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