Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorAghanim, N.en_US
dc.contributor.authorAkrami, Y.en_US
dc.contributor.authorAshdown, M.en_US
dc.contributor.authorAumont, J.en_US
dc.contributor.authorBaccigalupi, C.en_US
dc.contributor.authorBallardini, M.en_US
dc.contributor.authorBanday, A. J.en_US
dc.contributor.authorBarreiro, R. B.en_US
dc.contributor.authorBartolo, N.en_US
dc.contributor.authorBasak, S.en_US
dc.contributor.authorBattye, R.en_US
dc.contributor.authorBenabed, K.en_US
dc.contributor.authorBernard, J. P.en_US
dc.contributor.authorBersanelli, M.en_US
dc.contributor.authorBielewicz, P.en_US
dc.contributor.authorBond, J. R.en_US
dc.contributor.authorBorrill, J.en_US
dc.contributor.authorBouchet, F. R.en_US
dc.contributor.authorBurigana, C.en_US
dc.contributor.authorCalabrese, E.en_US
dc.contributor.authorCarron, J.en_US
dc.contributor.authorChiang, H. C.en_US
dc.contributor.authorComis, B.en_US
dc.contributor.authorContreras, D.en_US
dc.contributor.authorCrill, B. P.en_US
dc.contributor.authorCurto, A.en_US
dc.contributor.authorCuttaia, F.en_US
dc.contributor.authorDe Bernardis, P.en_US
dc.contributor.authorDe Rosa, A.en_US
dc.contributor.authorDe Zotti, G.en_US
dc.contributor.authorDelabrouille, J.en_US
dc.contributor.authorDi Valentino, E.en_US
dc.contributor.authorDickinson, C.en_US
dc.contributor.authorDiego, J. M.en_US
dc.contributor.authorDoré, O.en_US
dc.contributor.authorDucout, A.en_US
dc.contributor.authorDupac, X.en_US
dc.contributor.authorElsner, F.en_US
dc.contributor.authorEnßlin, T. A.en_US
dc.contributor.authorEriksen, H. K.en_US
dc.contributor.authorFalgarone, E.en_US
dc.contributor.authorFantaye, Y.en_US
dc.contributor.authorFinelli, F.en_US
dc.contributor.authorForastieri, F.en_US
dc.contributor.authorFrailis, M.en_US
dc.contributor.authorFraisse, A. A.en_US
dc.contributor.authorFranceschi, E.en_US
dc.contributor.authorKim, J.en_US
dc.contributor.authorMa, Y. Z.en_US
dc.contributor.authorSavelainen, M.en_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.organizationUniversité Paris-Suden_US
dc.contributor.organizationLeiden Universityen_US
dc.contributor.organizationUniversity of Cambridgeen_US
dc.contributor.organizationIRAPen_US
dc.contributor.organizationInternational School for Advanced Studiesen_US
dc.contributor.organizationUniversity of the Western Capeen_US
dc.contributor.organizationCentre National de la Recherche Scientifique (CNRS)en_US
dc.contributor.organizationUniversidad de Cantabriaen_US
dc.contributor.organizationUniversity of Padovaen_US
dc.contributor.organizationIndian Institute of Science Education and Research Thiruvananthapuramen_US
dc.contributor.organizationUniversity of Manchesteren_US
dc.contributor.organizationInstitut d 'Astrophysique de Parisen_US
dc.contributor.organizationUniversity of Milanen_US
dc.contributor.organizationUniversity of Torontoen_US
dc.contributor.organizationLawrence Berkeley National Laboratoryen_US
dc.contributor.organizationUniversity of Ferraraen_US
dc.contributor.organizationCardiff Universityen_US
dc.contributor.organizationUniversity of Sussexen_US
dc.contributor.organizationUniversity of KwaZulu-Natalen_US
dc.contributor.organizationInstitut national de physique nucléaire et de physique des particulesen_US
dc.contributor.organizationUniversity of British Columbiaen_US
dc.contributor.organizationCalifornia Institute of Technologyen_US
dc.contributor.organizationCNR-ENEA-EURATOM Associationen_US
dc.contributor.organizationSapienza University of Romeen_US
dc.contributor.organizationINAF - Osservatorio Astronomico di Padovaen_US
dc.contributor.organizationUniversité Sorbonne Paris Citéen_US
dc.contributor.organizationImperial College Londonen_US
dc.contributor.organizationEuropean Space Agency - ESAen_US
dc.contributor.organizationMax-Planck-Institut für Astrophysiken_US
dc.contributor.organizationUniversity of Osloen_US
dc.contributor.organizationUniversité PSLen_US
dc.contributor.organizationAfrican Institute for Mathematical Sciencesen_US
dc.contributor.organizationOsservatorio Astronomico di Triesteen_US
dc.contributor.organizationPrinceton Universityen_US
dc.contributor.organizationJodrell Bank Centre for Astrophysicsen_US
dc.date.accessioned2018-10-16T08:55:53Z
dc.date.available2018-10-16T08:55:53Z
dc.date.issued2018-09-01en_US
dc.description.abstractUsing the Planck full-mission data, we present a detection of the temperature (and therefore velocity) dispersion due to the kinetic Sunyaev-Zeldovich (kSZ) effect from clusters of galaxies. To suppress the primary CMB and instrumental noise we derive a matched filter and then convolve it with the Planck foreground-cleaned "2D-ILC" maps. By using the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we determine the normalized rms dispersion of the temperature fluctuations at the positions of clusters, finding that this shows excess variance compared with the noise expectation. We then build an unbiased statistical estimator of the signal, determining that the normalized mean temperature dispersion of 1526 clusters is ((ΔT/T)2) = (1.64 ± 0.48) × 10-11. However, comparison with analytic calculations and simulations suggest that around 0.7 σ of this result is due to cluster lensing rather than the kSZ effect. By correcting this, the temperature dispersion is measured to be ((ΔT/T)2) = (1.35 ± 0.48) × 10-11, which gives a detection at the 2.8 σ level. We further convert uniform-weight temperature dispersion into a measurement of the line-of-sight velocity dispersion, by using estimates of the optical depth of each cluster (which introduces additional uncertainty into the estimate). We find that the velocity dispersion is (υ2) = (123 000 ± 71 000) (km s-1)2, which is consistent with findings from other large-scale structure studies, and provides direct evidence of statistical homogeneity on scales of 600 h-1 Mpc. Our study shows the promise of using cross-correlations of the kSZ effect with large-scale structure in order to constrain the growth of structure.en
dc.description.versionPeer revieweden
dc.format.extent1-17
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationAghanim, N, Akrami, Y, Ashdown, M, Aumont, J, Baccigalupi, C, Ballardini, M, Banday, A J, Barreiro, R B, Bartolo, N, Basak, S, Battye, R, Benabed, K, Bernard, J P, Bersanelli, M, Bielewicz, P, Bond, J R, Borrill, J, Bouchet, F R, Burigana, C, Calabrese, E, Carron, J, Chiang, H C, Comis, B, Contreras, D, Crill, B P, Curto, A, Cuttaia, F, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Di Valentino, E, Dickinson, C, Diego, J M, Doré, O, Ducout, A, Dupac, X, Elsner, F, Enßlin, T A, Eriksen, H K, Falgarone, E, Fantaye, Y, Finelli, F, Forastieri, F, Frailis, M, Fraisse, A A, Franceschi, E, Kim, J, Ma, Y Z & Savelainen, M 2018, ' Planck intermediate results : LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect ', Astronomy and Astrophysics, vol. 617, A48, pp. 1-17 . https://doi.org/10.1051/0004-6361/201731489en
dc.identifier.doi10.1051/0004-6361/201731489en_US
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.otherPURE UUID: 9eea428b-07ec-4979-ba03-29f68b422dcfen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/9eea428b-07ec-4979-ba03-29f68b422dcfen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85054085590&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/28605376/aa31489_17.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/34305
dc.identifier.urnURN:NBN:fi:aalto-201810165382
dc.language.isoenen
dc.relation.ispartofseriesAstronomy and Astrophysicsen
dc.relation.ispartofseriesVolume 617en
dc.rightsopenAccessen
dc.subject.keywordCosmic background radiationen_US
dc.subject.keywordGalaxies: clusters: generalen_US
dc.subject.keywordLarge-scale structure of Universeen_US
dc.subject.keywordMethods: data analysisen_US
dc.titlePlanck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effecten
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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