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

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

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  • Author: Aghanim, N.

    Universite Paris-Saclay

  • Author: Akrami, Y.

    University of Oslo

  • Author: Ashdown, M.

    University of Cambridge

  • Author: Aumont, J.

    Universite de Toulouse

  • Author: Baccigalupi, C.

    International School for Advanced Studies

  • Author: Ballardini, M.

    University of the Western Cape

  • Author: Banday, A. J.

    Universite de Toulouse

  • Author: Barreiro, R. B.

    CSIC

  • Author: Bartolo, N.

    University of Padova

  • Author: Basak, S.

    Indian Institute of Science Education and Research Thiruvananthapuram, India

  • Author: Battye, R.

    University of Manchester

  • Author: Benabed, K.

    Sorbonne Université

  • Author: Bernard, J. -P.

    Universite de Toulouse

  • Author: Bersanelli, M.

    University of Milan

  • Author: Bielewicz, P.

    Polish Academy of Sciences

  • Author: Bond, J. R.

    University of Toronto

  • Author: Borrill, J.

    University of California at Berkeley

  • Author: Bouchet, F. R.

    Sorbonne Université

  • Author: Burigana, C.

    University of Ferrara

  • Author: Calabrese, E.

    Cardiff University

  • Author: Carron, J.

    University of Sussex

  • Author: Chiang, C.-H.

    Princeton University

  • Author: Comis, B.

    Université Grenoble Alpes

  • Author: Contreras, D.

    University of British Columbia

  • Author: Crill, B. P.

    California Institute of Technology

  • Author: Curto, A.

    University of Cambridge

  • Author: Cuttaia, F.

    CNR

  • Author: de Bernardis, P.

    University of Rome La Sapienza

  • Author: De Rosa, A.

    CNR

  • Author: de Zotti, G.

    International School for Advanced Studies, Italy

  • Author: Delabrouille, J.

    Universite Paris 7

  • Author: Di Valentino, Eleonora

    Sorbonne Université

  • Author: Dickinson, C.

    University of Manchester

  • Author: Diego, J. M.

    CSIC

  • Author: Dore, O.

    California Institute of Technology

  • Author: Ducout, A.

    Imperial College London

  • Author: Dupac, X.

    European Space Agency - ESA

  • Author: Elsner, F.

    Max Planck Institute for Astrophysics

  • Author: Ensslin, T. A.

    Max Planck Institute for Astrophysics

  • Author: Eriksen, H. K.

    University of Oslo, Norway

  • Author: Falgarone, E.

    PSL Research University

  • Author: Fantaye, Y.

    University of Stellenbosch

  • Author: Finelli, F.

    National Institute for Nuclear Physics

  • Author: Forastieri, F.

    University of Ferrara

  • Author: Fraisse, A. A.

    Princeton University, United States

  • Author: Hansen, F. K.

    University of Oslo, Norway

  • Author: Kim, J.

    Max Planck Institute for Astrophysics, Germany

  • Author: Ma, Y. -Z.

    University of Manchester, United Kingdom

  • Author: Martin, P. G.

    University of Toronto, Canada

  • Author: Oxborrow, C. A.

    Astrophysics and Atmospheric Physics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Pagano, L.

    Universite Paris-Saclay, France

  • Author: Paoletti, D.

    National Institute for Astrophysics, Italy

  • Author: Partridge, B.

    Haverford College, United States

  • Author: Perdereau, O.

    Universite Paris-Sud, France

  • Author: Perotto, L.

    Universite Paris-Sud, France

  • Author: Pettorino, V.

    Heidelberg University , Germany

  • Author: Piacentini, F.

    University of Rome La Sapienza, Italy

  • Author: Plaszczynski, S.

    Universite Paris-Sud, France

  • Author: Polastri, L.

    University of Ferrara, Italy

  • Author: Polenta, G.

    Agenzia Spaziale Italiana, Italy

  • Author: Rachen, J.P.

    Radboud University Nijmegen, Netherlands

  • Author: Racine, B.

    University of Oslo, Norway

  • Author: Reinecke, M.

    Max Planck Institute, Germany

  • Author: Remazeilles, M.

    University of Manchester, United Kingdom

  • Author: Renzi, A.

    International School for Advanced Studies, Italy

  • Author: Rocha, G.

    California Institute of Technology, United States

  • Author: Roudier, G.

    University Paris Diderot - Paris 7, France

  • Author: Ruiz-Granados, B.

    Instituto Astrofisico de Canarias, Spain

  • Author: Sandri, M.

    National Institute for Astrophysics, Italy

  • Author: Savelainen, M.

    University of Helsinki, Finland

  • Author: Scott, D.

    University of British Columbia, Canada

  • Author: Sirignano, C.

    Universita di Padova, Italy

  • Author: Sirri, G.

    National Institute for Nuclear Physics, Italy

  • Author: Spencer, L. D.

    Cardiff University, United Kingdom

  • Author: Stanco, L.

    National Institute for Nuclear Physics, Italy

  • Author: Sunyaev, R.

    Max Planck Institute for Astrophysics

  • Author: Tauber, J. A.

    ESTEC, Netherlands

  • Author: Tavagnacco, D.

    INAF – Osservatorio Astronomico di Trieste, Italy

  • Author: Tenti, M.

    National Institute for Nuclear Physics, Italy

  • Author: Toffolatti, Luigi

    University of Oviedo, Spain

  • Author: Tomasi, M.

    Universitá degli Studi di Milano, Italy

  • Author: Tristram, M.

    Universite Paris-Sud, France

  • Author: Trombetti, T.

    National Institute for Astrophysics, Italy

  • Author: Valiviita, J.

    Princeton University, United States

  • Author: Van Tent, F.

    Universite Paris-Sud, France

  • Author: Vielva, P.

    Universidad de Cantabria, Spain

  • Author: Villa, F

    National Institute for Astrophysics, Italy

  • Author: Vittorio, N.

    University of Rome Tor Vergata, Italy

  • Author: Wandelt, B. D.

    CNRS, France

  • Author: Wehus, I. K.

    California Institute of Technology, United States

  • Author: Zacchei, A.

    National Institute for Astrophysics, Italy

  • Author: Zonca, A.

    University of California at Santa Barbara, United States

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Using 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.

Original languageEnglish
Article numberA48
JournalAstronomy and Astrophysics
Volume617
Number of pages17
ISSN0004-6361
DOIs
Publication statusPublished - 2018
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Cosmic background radiation, Galaxies: clusters: general, Large-scale structure of Universe, Methods: data analysis

ID: 157257034