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dc.contributor.authorNtelis, Pierros
dc.contributor.authorHamilton, Jean-Christophe
dc.contributor.authorGoff, Jean-Marc Le
dc.contributor.authorBurtin, Etienne
dc.contributor.authorLaurent, Pierre
dc.contributor.authorRich, James
dc.contributor.authorBusca, Nicolas Guillermo
dc.contributor.authorTinker, Jeremy
dc.contributor.authorAubourg, Eric
dc.contributor.authorBourboux, Hélion du Mas des
dc.contributor.authorBautista, Julian
dc.contributor.authorDelabrouille, Nathalie Palanque
dc.contributor.authorDelubac, Timothée
dc.contributor.authorEftekharzadeh, Sarah
dc.contributor.authorHogg, David W.
dc.contributor.authorMyers, Adam
dc.contributor.authorVargas-Magaña, Mariana
dc.contributor.authorPâris, Isabelle
dc.contributor.authorPetitjean, Partick
dc.contributor.authorRossi, Graziano
dc.contributor.authorSchneider, Donald P.
dc.contributor.authorTojeiro, Rita
dc.contributor.authorYeche, Christophe
dc.date.accessioned2017-12-21T10:30:12Z
dc.date.available2017-12-21T10:30:12Z
dc.date.issued2017-06-09
dc.identifier.citationNtelis , P , Hamilton , J-C , Goff , J-M L , Burtin , E , Laurent , P , Rich , J , Busca , N G , Tinker , J , Aubourg , E , Bourboux , H D M D , Bautista , J , Delabrouille , N P , Delubac , T , Eftekharzadeh , S , Hogg , D W , Myers , A , Vargas-Magaña , M , Pâris , I , Petitjean , P , Rossi , G , Schneider , D P , Tojeiro , R & Yeche , C 2017 , ' Exploring cosmic homogeneity with the BOSS DR12 galaxy sample ' , Journal of Cosmology and Astroparticle Physics , vol. 2017 , no. 6 , 019 . https://doi.org/10.1088/1475-7516/2017/06/019en
dc.identifier.issn1475-7516
dc.identifier.otherPURE: 250563555
dc.identifier.otherPURE UUID: bba5e709-b5b2-4e33-97a6-10309ef2c106
dc.identifier.otherBibtex: urn:572ea4d69f582a4c9760df83b77b4ae7
dc.identifier.otherScopus: 85021624625
dc.identifier.otherWOS: 000403482400025
dc.identifier.urihttp://hdl.handle.net/10023/12370
dc.description.abstractIn this study, we probe the transition to cosmic homogeneity in the Large Scale Structure (LSS) of the Universe using the CMASS galaxy sample of BOSS spectroscopic survey which covers the largest effective volume to date, 3 h-3 Gpc3 at 0.43 ≤ z ≤ 0.7. We study the scaled counts-in-spheres, N(<r), and the fractal correlation dimension, D2(r), to assess the homogeneity scale of the universe using a Landy & Szalay inspired estimator. Defining the scale of transition to homogeneity as the scale at which D2(r) reaches 3 within 1%, i.e. D2(r)>2.97 for r>RH, we find RH = (63.3±0.7) h-1 Mpc, in agreement at the percentage level with the predictions of the ΛCDM model RH=62.0 h-1 Mpc. Thanks to the large cosmic depth of the survey, we investigate the redshift evolution of the transition to homogeneity scale and find agreement with the ΛCDM prediction. Finally, we find that 2 is compatible with 3 at scales larger than 300 h-1 Mpc in all redshift bins. These results consolidate the Cosmological Principle and represent a precise consistency test of the ΛCDM model.
dc.language.isoeng
dc.relation.ispartofJournal of Cosmology and Astroparticle Physicsen
dc.rightsCopyright © 2017, IOP Publishing Ltd and Sissa Medialab srl This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1088/1475-7516/2017/06/019en
dc.subjectGalaxy clusteringen
dc.subjectCosmic weben
dc.subjectGalaxy surveysen
dc.subjectRedshift surveysen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleExploring cosmic homogeneity with the BOSS DR12 galaxy sampleen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1088/1475-7516/2017/06/019
dc.description.statusPeer revieweden
dc.identifier.urlhttps://arxiv.org/abs/1702.02159en


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