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The 2dF Galaxy Redshift Survey: spherical harmonics analysis of fluctuations in the final catalogue

Percival, Will J; Burkey, Daniel; Heavens, Alan; Taylor, Andy; Cole, Shaun; Peacock, John A; Baugh, Carlton M; Bland-Hawthorn, Joss; Bridges, Terry C; Cannon, Russell; Colless, Matthew; Collins, Chris; Couch, Warrick; Dalton, Gavin; De Propris, Roberto; Driver, Simon; Efstathiou, George; Ellis, Richard S; Frenk, Carlos S; Glazebrook, Karl; Jackson, Carole A; Lahav, Ofer; Lewis, Ian; Lumsden, Stuart; Maddox, Steve J; Norberg, Peder; Peterson, Bruce; Sutherland, William J; Taylor, Keith

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We present the result of a decomposition of the 2dF Galaxy Redshift Survey (2dFGRS) galaxy overdensity field into an orthonormal basis of spherical harmonics and spherical Bessel functions. Galaxies are expected to directly follow the bulk motion of the density field on large scales, so the absolute amplitude of the observed large-scale redshift-space distortions caused by this motion is expected to be independent of galaxy properties. By splitting the overdensity field into radial and angular...[Show more]

dc.contributor.authorPercival, Will J
dc.contributor.authorBurkey, Daniel
dc.contributor.authorHeavens, Alan
dc.contributor.authorTaylor, Andy
dc.contributor.authorCole, Shaun
dc.contributor.authorPeacock, John A
dc.contributor.authorBaugh, Carlton M
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.authorFrenk, Carlos S
dc.contributor.authorGlazebrook, Karl
dc.contributor.authorJackson, Carole A
dc.contributor.authorLahav, Ofer
dc.contributor.authorLewis, Ian
dc.contributor.authorLumsden, Stuart
dc.contributor.authorMaddox, Steve J
dc.contributor.authorNorberg, Peder
dc.contributor.authorPeterson, Bruce
dc.contributor.authorSutherland, William J
dc.contributor.authorTaylor, Keith
dc.date.accessioned2015-12-13T23:10:19Z
dc.date.available2015-12-13T23:10:19Z
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/87402
dc.description.abstractWe present the result of a decomposition of the 2dF Galaxy Redshift Survey (2dFGRS) galaxy overdensity field into an orthonormal basis of spherical harmonics and spherical Bessel functions. Galaxies are expected to directly follow the bulk motion of the density field on large scales, so the absolute amplitude of the observed large-scale redshift-space distortions caused by this motion is expected to be independent of galaxy properties. By splitting the overdensity field into radial and angular components, we linearly model the observed distortion and obtain the cosmological constraint Ωm0.6σ8 = 0.46 ± 0.06. The amplitude of the linear redshift-space distortions relative to the galaxy overdensity field is dependent on galaxy properties and, for L* galaxies at redshift z = 0, we measure β(L*, 0) = 0.58 ± 0.08, and the amplitude of the overdensity fluctuations b(L*, 0)σ8 = 0.79 ± 0.03, marginalizing over the power spectrum shape parameters. Assuming a fixed power spectrum shape consistent with the full Fourier analysis produces very similar parameter constraints.
dc.publisherBlackwell Publishing Ltd
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.subjectKeywords: Cosmological parameters; Large-scale structure of Universe
dc.titleThe 2dF Galaxy Redshift Survey: spherical harmonics analysis of fluctuations in the final catalogue
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume353
dc.date.issued2004
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationMigratedxPub16668
local.type.statusPublished Version
local.contributor.affiliationPercival, Will J, University of Edinburgh
local.contributor.affiliationBurkey, Daniel, Royal Observatory Edinburgh
local.contributor.affiliationHeavens, Alan, University of Edinburgh
local.contributor.affiliationTaylor, Andy, Royal Observatory Edinburgh
local.contributor.affiliationCole, Shaun, University of Durham
local.contributor.affiliationPeacock, John A, University of Edinburgh
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.affiliationColless, Matthew, Anglo-Australian Observatory
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.affiliationFrenk, Carlos S, University of Durham
local.contributor.affiliationGlazebrook, Karl, Johns Hopkins University
local.contributor.affiliationJackson, Carole A, CSIRO, Australia Telescope National Facility
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.affiliationNorberg, Peder, Swiss Federal Institute of Technology (ETH)
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.bibliographicCitation.startpage1201
local.bibliographicCitation.lastpage1218
local.identifier.doi10.1111/j.1365-2966.2004.08146.x
dc.date.updated2016-02-24T09:48:08Z
local.identifier.scopusID2-s2.0-5644288803
CollectionsANU Research Publications

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