Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys
We present the first detection of the cross-correlation angular power spectrum between the thermal Sunyaev-Zel'dovich (tSZ) effect and the X-ray emission over the full sky. The tSZ effect and X-rays are produced by the same hot gas within groups and clusters of galaxies, which creates a natural...
| Autores: | , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/139895 |
| Acesso em linha: | http://hdl.handle.net/10261/139895 |
| Access Level: | acceso abierto |
| Palavra-chave: | Large-scale structure of the universe Galaxies: clusters: intracluster medium X-rays: galaxies: clusters – methods: data analysis Cosmic background radiation |
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Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveysHurier, GuillaumeDouspis, M.Aghanim, N.Pointecouteau, E.Diego, José MaríaMacías-Pérez, J. F.Large-scale structure of the universeGalaxies: clusters: intracluster mediumX-rays: galaxies: clusters – methods: data analysisCosmic background radiationWe present the first detection of the cross-correlation angular power spectrum between the thermal Sunyaev-Zel'dovich (tSZ) effect and the X-ray emission over the full sky. The tSZ effect and X-rays are produced by the same hot gas within groups and clusters of galaxies, which creates a naturally strong correlation between them that can be used to boost the joint signal and derive cosmological parameters. We computed the correlation between the ROSAT All Sky Survey in the 0.5-2 keV energy band and the tSZ effect reconstructed from six Planck all-sky frequency maps between 70 and 545 GHz. We detect a significant correlation over a wide range of angular scales. In the range 50 <l < 2000, the cross-correlation of X-rays to tSZ is detected at an overall significance of 28σ. As part of our systematic study, we performed a multi-frequency modelling of the AGN contamination and the correlation between cosmic infra-red background and X-rays. Taking advantage of the strong dependence of the cross-correlation signal on the amplitude of the power spectrum, we constrained σ8 = 0.804 ± 0.037, where modelling uncertainties dominate statistical and systematic uncertainties. We also derived constraints on the mass indices of scaling relations between the halo mass and X-ray luminosity, L500 - M500, and SZ signal, Y500 - M500, asz + ax = 3.37 ± 0.09, and on the indices of the extra-redshift evolution, βsz + βx = 0.4+0.4 -0.5.We acknowledge the support of the French Agence Nationale de la Recherche under grant ANR-11-BD56-015. The development of Planck has been supported by: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MICINN and JA (Spain); Tekes, AoF and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and PRACE (EU).Peer ReviewedEDP SciencesEuropean Space AgencyAgence Nationale de la Recherche (France)European CommissionCentre National de la Recherche Scientifique (France)Istituto Nazionale di AstrofisicaNASADepartment of Energy (US)Fundação para a Ciência e a Tecnologia (Portugal)Research Council of NorwayDTU Space (Denmark)Academy of FinlandCenter for Science (Finland)Ministerio de Ciencia e Innovación (España)UK Space AgencyScience and Technology Facilities Council (UK)Consejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2016201620152016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/139895reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1051/0004-6361/201425555Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1398952026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys |
| title |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys |
| spellingShingle |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys Hurier, Guillaume Large-scale structure of the universe Galaxies: clusters: intracluster medium X-rays: galaxies: clusters – methods: data analysis Cosmic background radiation |
| title_short |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys |
| title_full |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys |
| title_fullStr |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys |
| title_full_unstemmed |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys |
| title_sort |
Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys |
| dc.creator.none.fl_str_mv |
Hurier, Guillaume Douspis, M. Aghanim, N. Pointecouteau, E. Diego, José María Macías-Pérez, J. F. |
| author |
Hurier, Guillaume |
| author_facet |
Hurier, Guillaume Douspis, M. Aghanim, N. Pointecouteau, E. Diego, José María Macías-Pérez, J. F. |
| author_role |
author |
| author2 |
Douspis, M. Aghanim, N. Pointecouteau, E. Diego, José María Macías-Pérez, J. F. |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
European Space Agency Agence Nationale de la Recherche (France) European Commission Centre National de la Recherche Scientifique (France) Istituto Nazionale di Astrofisica NASA Department of Energy (US) Fundação para a Ciência e a Tecnologia (Portugal) Research Council of Norway DTU Space (Denmark) Academy of Finland Center for Science (Finland) Ministerio de Ciencia e Innovación (España) UK Space Agency Science and Technology Facilities Council (UK) Consejo Superior de Investigaciones Científicas (España) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Large-scale structure of the universe Galaxies: clusters: intracluster medium X-rays: galaxies: clusters – methods: data analysis Cosmic background radiation |
| topic |
Large-scale structure of the universe Galaxies: clusters: intracluster medium X-rays: galaxies: clusters – methods: data analysis Cosmic background radiation |
| description |
We present the first detection of the cross-correlation angular power spectrum between the thermal Sunyaev-Zel'dovich (tSZ) effect and the X-ray emission over the full sky. The tSZ effect and X-rays are produced by the same hot gas within groups and clusters of galaxies, which creates a naturally strong correlation between them that can be used to boost the joint signal and derive cosmological parameters. We computed the correlation between the ROSAT All Sky Survey in the 0.5-2 keV energy band and the tSZ effect reconstructed from six Planck all-sky frequency maps between 70 and 545 GHz. We detect a significant correlation over a wide range of angular scales. In the range 50 <l < 2000, the cross-correlation of X-rays to tSZ is detected at an overall significance of 28σ. As part of our systematic study, we performed a multi-frequency modelling of the AGN contamination and the correlation between cosmic infra-red background and X-rays. Taking advantage of the strong dependence of the cross-correlation signal on the amplitude of the power spectrum, we constrained σ8 = 0.804 ± 0.037, where modelling uncertainties dominate statistical and systematic uncertainties. We also derived constraints on the mass indices of scaling relations between the halo mass and X-ray luminosity, L500 - M500, and SZ signal, Y500 - M500, asz + ax = 3.37 ± 0.09, and on the indices of the extra-redshift evolution, βsz + βx = 0.4+0.4 -0.5. |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015 2016 2016 2016 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/139895 |
| url |
http://hdl.handle.net/10261/139895 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://doi.org/10.1051/0004-6361/201425555 Sí |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
EDP Sciences |
| publisher.none.fl_str_mv |
EDP Sciences |
| dc.source.none.fl_str_mv |
reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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15,812429 |