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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Planck intermediate results: XIII. Constraints on peculiar velocities
Astronomy and Astrophysics, Volume 561, Article A97, Year 2014
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Description
Using Planck data combined with the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we address the study of peculiar motions by searching for evidence of the kinetic Sunyaev-Zeldovich effect (kSZ). By implementing various filters designed to extract the kSZ generated at the positions of the clusters, we obtain consistent constraints on the radial peculiar velocity average, root mean square (rms), and local bulk flow amplitude at different depths. For the whole cluster sample of average redshift 0.18, the measured average radial peculiar velocity with respect to the cosmic microwave background (CMB) radiation at that redshift, i.e., the kSZ monopole, amounts to 72 ± 60 km s-1. This constitutes less than 1% of the relative Hubble velocity of the cluster sample with respect to our local CMB frame. While the linear ΛCDM prediction for the typical cluster radial velocity rms at z = 0.15 is close to 230 km s-1, the upper limit imposed by Planck data on the cluster subsample corresponds to 800 km s-1 at 95% confidence level, i.e., about three times higher. Planck data also set strong constraints on the local bulk flow in volumes centred on the Local Group. There is no detection of bulk flow as measured in any comoving sphere extending to the maximum redshift covered by the cluster sample. A blind search for bulk flows in this sample has an upper limit of 254 km s-1 (95% confidence level) dominated by CMB confusion and instrumental noise, indicating that the Universe is largely homogeneous on Gpc scales. In this context, in conjunction with supernova observations, Planck is able to rule out a large class of inhomogeneous void models as alternatives to dark energy or modified gravity. The Planck constraints on peculiar velocities and bulk flows are thus consistent with the ΛCDM scenario. © 2014 ESO.
Authors & Co-Authors
Ade, Peter A.R.
United Kingdom, Cardiff
Cardiff University
Aghanim, Nabila
France, Orsay
Institut D'astrophysique Spatiale
Arnaud, Monique D.
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Ashdown, Mark A.J.
United Kingdom, Cambridge
Department of Physics
United Kingdom, Cambridge
University of Cambridge
Aumont, Jonathan
France, Orsay
Institut D'astrophysique Spatiale
Baccigalupi, Carlo
Italy, Trieste
Scuola Internazionale Superiore Di Studi Avanzati
Balbi, Amedeo
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
Banday, Anthony J.
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Barreiro, R. B.
Spain, Santander
Universidad de Cantabria
Battaner, Eduardo
Spain, Granada
Universidad de Granada, Facultad de Ciencias
Benabed, Karim
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Paris
Université Paris Cité
Benoit-Lévy, Aurélien
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Paris
Université Paris Cité
Bernard, Jean Ph
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
Bersanelli, Marco
Italy, Milan
Università Degli Studi Di Milano
Italy, Milan
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Milan
Bielewicz, Pawel
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
Italy, Trieste
Scuola Internazionale Superiore Di Studi Avanzati
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Bikmaev, Ilfan F.
Russian Federation, Kazan
Tatarstan Academy of Sciences
Russian Federation, Kazan
Kazan Federal University
Bobin, Jérôme
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Bock, James J.
United States, Pasadena
California Institute of Technology
United States, Pasadena
Jet Propulsion Laboratory
Bonaldi, Anna
United Kingdom, Manchester
The University of Manchester
Bond, J. Richard
Canada, Toronto
L’institut Canadien D’astrophysique Théorique
Borrill, JULIAN D.
United States, Berkeley
Lawrence Berkeley National Laboratory
United States, Berkeley
Space Sciences Laboratory
Bouchet, François R.
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Paris
Université Paris Cité
Burigana, Carlo
Italy, Ferrara
University of Ferrara
Italy, Bologna
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Bologna
Butler, Reginald Christopher
Italy, Bologna
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Bologna
Cabella, Paolo
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
Cardoso, Jean Fraņcois
France, Paris
Apc - Astroparticule et Cosmologie
France, Paris
Cnrs Centre National de la Recherche Scientifique
Catalano, Andrea
France, Neuville-sur-oise
Lerma - Laboratoire D'études du Rayonnement et de la Matière en Astrophysique et Atmosphères
France, Grenoble
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
Chamballu, A.
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
France, Orsay
Institut D'astrophysique Spatiale
Chiang, Lung Yih
Taiwan, Taipei
Academia Sinica, Institute of Astronomy and Astrophysics
Chon, Gayoung
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Christensen, Per Rex
Denmark, Copenhagen
Niels Bohr Institutet
Clements, David L.
United Kingdom, London
Imperial College London
Colombi, Stéphane T.
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Paris
Université Paris Cité
Colombo, Loris P.L.
United States, Los Angeles
University of Southern California
United States, Pasadena
Jet Propulsion Laboratory
Crill, Brendan P.
United States, Pasadena
Jet Propulsion Laboratory
United States, Pasadena
California Institute of Technology
Cuttaia, Francesco
Italy, Bologna
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Bologna
da Silva, Antonio C.
Portugal, Porto
Centro de Astrofísica da Universidade do Porto
Dahle, Haakon
Norway, Oslo
Universitetet I Oslo
Davies, Rodney D.
United Kingdom, Manchester
The University of Manchester
Davis, Richard J.
United Kingdom, Manchester
The University of Manchester
De Bernardis, Paolo
Italy, Rome
Dipartimento Di Fisica
De Gasperis, Giancarlo C.
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
de Zotti, Gianfranco
Italy, Padua
Osservatorio Astronomico Di Padova
Italy, Trieste
Scuola Internazionale Superiore Di Studi Avanzati
Delabrouille, Jacques
France, Paris
Apc - Astroparticule et Cosmologie
Démoclès, Jessica
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Diego, J. M.
Spain, Santander
Universidad de Cantabria
Dolag, Klaus
Germany, Garching Bei Munchen
Max Planck Institute for Astrophysics
Germany, Munich
Ludwig-maximilians-universität München
Dole, Hervé A.
France, Paris
Institut Universitaire de France
France, Orsay
Institut D'astrophysique Spatiale
Donzelli, Simona
Italy, Milan
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Milan
Doré, Olivier P.
United States, Pasadena
California Institute of Technology
United States, Pasadena
Jet Propulsion Laboratory
Dörl, U.
Germany, Garching Bei Munchen
Max Planck Institute for Astrophysics
Douspis, Marian
France, Orsay
Institut D'astrophysique Spatiale
Dupac, Xavier
Spain, Madrid
European Space Astronomy Centre
Ensslin, Torsten A.
Germany, Garching Bei Munchen
Max Planck Institute for Astrophysics
Finelli, Fabio
Italy, Bologna
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Bologna
Italy, Bologna
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bologna
Flores-Cacho, Inés
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Forni, Olivier P.
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Frailis, Marco
Italy, Trieste
Osservatorio Astronomico Di Trieste
Frommert, Mona
Switzerland, Geneva
Université de Genève
Galeotta, Samuele
Italy, Trieste
Osservatorio Astronomico Di Trieste
Ganga, Ken M.
France, Paris
Apc - Astroparticule et Cosmologie
Génova-Santos, Ricardo Tanausu
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Giard, Martin
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Giardino, Giovanna
Netherlands, Noordwijk Aan Zee
Estec - European Space Research and Technology Centre
Gonzalez-Nuevo, J.
Spain, Santander
Universidad de Cantabria
Italy, Trieste
Scuola Internazionale Superiore Di Studi Avanzati
Gregorio, Anna
Italy, Trieste
Università Degli Studi Di Trieste
Italy, Trieste
Osservatorio Astronomico Di Trieste
Gruppuso, Alessandro
Italy, Bologna
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Bologna
Hansen, Frode K.
Norway, Oslo
Universitetet I Oslo
Harrison, D. L.
United Kingdom, Cambridge
Institute of Astronomy
United Kingdom, Cambridge
University of Cambridge
Hërnàndez-Monteagudo, Carlos
Spain, Teruel
Centro de Estudios de Física Del Cosmos de Aragón Cefca
Germany, Garching Bei Munchen
Max Planck Institute for Astrophysics
Herranz, Diego
Spain, Santander
Universidad de Cantabria
Hildebrandt, Sergi R.
United States, Pasadena
California Institute of Technology
Hivon, Eric F.
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Paris
Université Paris Cité
Holmes, Warren A.
United States, Pasadena
Jet Propulsion Laboratory
Hovest, Wolfgang
Germany, Garching Bei Munchen
Max Planck Institute for Astrophysics
Huffenberger, Kevin M.
United States, Coral Gables
University of Miami
Hurier, Guillaume
France, Grenoble
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
Jaffe, Tess R.
France, Toulouse
Institut de Recherche en Astrophysique et Planétologie Irap
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Jaffe, Andrew H H.
United Kingdom, London
Imperial College London
Jasche, Jens
France, Paris
Cnrs Centre National de la Recherche Scientifique
Jones, William C.
United States, Princeton
Princeton University
Juvela, Mika J.
Finland, Helsinki
Helsingin Yliopisto
Keihänen, Elina
Finland, Helsinki
Helsingin Yliopisto
Keskitalo, Reijo
United States, Berkeley
Lawrence Berkeley National Laboratory
United States, Berkeley
Department of Electrical Engineering and Computer Sciences
Khamitov, Irek M.
Russian Federation, Kazan
Kazan Federal University
Turkey, Antalya
Akdeniz Üniversitesi
Kisner, Theodore S.
United States, Berkeley
Lawrence Berkeley National Laboratory
Knoche, Jörg
Germany, Garching Bei Munchen
Max Planck Institute for Astrophysics
Kunz, Martin
South Africa, Muizenberg
African Institute for Mathematical Sciences
Switzerland, Geneva
Université de Genève
France, Orsay
Institut D'astrophysique Spatiale
Kurki-Suonio, Hannu
Finland, Helsinki
Helsingin Yliopisto
Lagache, Guilaine
France, Orsay
Institut D'astrophysique Spatiale
L¨ahteenm¨aki, Anne A.
Finland, Espoo
Aalto University
Finland, Helsinki
Helsingin Yliopisto
Lamarre, Jean Michel A.
France, Neuville-sur-oise
Lerma - Laboratoire D'études du Rayonnement et de la Matière en Astrophysique et Atmosphères
Lasenby, Anthony N.
United Kingdom, Cambridge
Department of Physics
United Kingdom, Cambridge
University of Cambridge
Lawrence, Charles R.
United States, Pasadena
Jet Propulsion Laboratory
Le Jeune, Maude
France, Paris
Apc - Astroparticule et Cosmologie
Leonardi, Rodrigo
Spain, Madrid
European Space Astronomy Centre
Lilje, P. B.
Norway, Oslo
Universitetet I Oslo
Linden-Vørnle, Michael J.D.
Denmark, Lyngby
Technical University of Denmark
López-Caniego, Marcos
Spain, Santander
Universidad de Cantabria
MacÍas-Pérez, Juan Francisco
France, Grenoble
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
Statistics
Citations: 100
Authors: 100
Affiliations: 57
Identifiers
Doi:
10.1051/0004-6361/201321299
ISSN:
00046361
e-ISSN:
14320746
Research Areas
Cancer
Disability