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Galaxy groups in the 2dFGRS: the group-finding algorithm and the 2PIGG catalogue

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dc.contributor.authorEke, Vincent R
dc.contributor.authorBaugh, Carlton M
dc.contributor.authorCole, Shaun
dc.contributor.authorFrenk, Carlos S
dc.contributor.authorNorberg, Peder
dc.contributor.authorPeacock, John A
dc.contributor.authorBaldry, Ivan K
dc.contributor.authorBland-Hawthorn, Joss
dc.contributor.authorBridges, Terry C
dc.contributor.authorCannon, Russell
dc.contributor.authorColless, Matthew
dc.contributor.authorCollins, Chris
dc.contributor.authorCouch, Warrick
dc.contributor.authorDalton, Gavin
dc.contributor.authorDe Propris, Roberto
dc.contributor.authorDriver, Simon
dc.contributor.authorEfstathiou, George
dc.contributor.authorEllis, Richard S
dc.contributor.authorGlazebrook, Karl
dc.contributor.authorJackson, Carole
dc.contributor.authorLahav, Ofer
dc.contributor.authorLewis, Ian
dc.contributor.authorLumsden, Stuart
dc.contributor.authorMaddox, Steve J
dc.contributor.authorMadgwick, Darren
dc.contributor.authorPeterson, Bruce
dc.contributor.authorSutherland, William J
dc.contributor.authorTaylor, Keith
dc.date.accessioned2015-12-13T23:16:33Z
dc.date.available2015-12-13T23:16:33Z
dc.date.issued2004
dc.date.updated2015-12-12T08:48:38Z
dc.description.abstractThe construction of a catalogue of galaxy groups from the Two-degree Field Galaxy Red-shift Survey (2dFGRS) is described. Groups are identified by means of a friends-of-friends percolation algorithm which has been thoroughly tested on mock versions of the 2dFGRS generated from cosmological N-body simulations. The tests suggest that the algorithm groups all galaxies that it should be grouping, with an additional 40 per cent of interlopers. About 55 per cent of the ∼190 000 galaxies considered are placed into groups containing at least two members of which ∼29 000 are found. Of these, ∼7000 contain at least four galaxies, and these groups have a median redshift of 0.11 and a median velocity dispersion of 260 km s -1. This 2dFGRS Percolation-Inferred Galaxy Group (2PIGG) catalogue represents the largest available homogeneous sample of galaxy groups. It is publicly available on the World Wide Web.
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/89465
dc.publisherBlackwell Publishing Ltd
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.subjectKeywords: Catalogues; Galaxies: Clusters: General
dc.titleGalaxy groups in the 2dFGRS: the group-finding algorithm and the 2PIGG catalogue
dc.typeJournal article
local.bibliographicCitation.lastpage878
local.bibliographicCitation.startpage866
local.contributor.affiliationEke, Vincent R, University of Durham
local.contributor.affiliationBaugh, Carlton M, University of Durham
local.contributor.affiliationCole, Shaun, University of Durham
local.contributor.affiliationFrenk, Carlos S, University of Durham
local.contributor.affiliationNorberg, Peder, Swiss Federal Institute of Technology (ETH)
local.contributor.affiliationPeacock, John A, University of Edinburgh
local.contributor.affiliationBaldry, Ivan K, Johns Hopkins University
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.affiliationColless, Matthew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCollins, Chris, Liverpool John Moores University
local.contributor.affiliationCouch, Warrick, University of New South Wales
local.contributor.affiliationDalton, Gavin, University of Oxford
local.contributor.affiliationDe Propris, Roberto, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationDriver, Simon, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationEfstathiou, George, University of Cambridge
local.contributor.affiliationEllis, Richard S, California Institute of Technology
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.affiliationPeterson, Bruce, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSutherland, William J, University of Cambridge
local.contributor.affiliationTaylor, Keith, Anglo-Australian Observatory
local.contributor.authoruidColless, Matthew, u9300169
local.contributor.authoruidDe Propris, Roberto, u4039665
local.contributor.authoruidDriver, Simon, u4041024
local.contributor.authoruidJackson, Carole, u9908169
local.contributor.authoruidPeterson, Bruce, u8000960
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationMigratedxPub19501
local.identifier.citationvolume348
local.identifier.scopusID2-s2.0-1542327736
local.type.statusPublished Version

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