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Optimal redshift weighting for redshift-space distortions
Ruggeri, Rossana1; Percival, Will J.1; Gil-Marin, Hector1,2,3; Zhu, Fangzhou4; Zhao, Gong-Bo1,5; Wang, Yuting1,5
2017
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume464Issue:3Pages:2698-2707
AbstractThe low-statistical errors on cosmological parameters promised by future galaxy surveys will only be realized with the development of new, fast, analysis methods that reduce potential systematic problems to low levels. We present an efficient method for measuring the evolution of the growth of structure using redshift-space distortions (RSDs), that removes the need to make measurements in redshift shells. We provide sets of galaxy-weights that cover a wide range in redshift, but are optimized to provide differential information about cosmological evolution. These are derived to optimally measure the coefficients of a parametrization of the redshift-dependent matter density, which provides a framework to measure deviations from the concordance Lambda CDM cosmology, allowing for deviations in both geometric and/or growth. We test the robustness of the weights by comparing with alternative schemes and investigate the impact of galaxy bias. We extend the results to measure the combined anisotropic baryon acoustic oscillation and RSD signals.
SubtypeArticle
KeywordSurveys Galaxies: Statistics Cosmological Parameters Cosmology: Observations Large-scale Structure Of Universe
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationEuropean Research Council ; European Research Council ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Space Agency(ST/K00283X/1) ; UK Space Agency(ST/K00283X/1) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000) ; European Research Council ; European Research Council ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Space Agency(ST/K00283X/1) ; UK Space Agency(ST/K00283X/1) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000)
DOI10.1093/mnras/stw2422
WOS KeywordCOSMOLOGICAL PARAMETERS ; EIGENMODE ANALYSIS ; POWER-SPECTRUM
Indexed BySCI
Language英语
Funding OrganizationEuropean Research Council ; European Research Council ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Space Agency(ST/K00283X/1) ; UK Space Agency(ST/K00283X/1) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000) ; European Research Council ; European Research Council ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Science & Technology Facilities Council(ST/K0090X/1) ; UK Space Agency(ST/K00283X/1) ; UK Space Agency(ST/K00283X/1) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Agence Nationale de la Recherche, programme Investissements d'avenir(ANR-11-IDEX-0004-02) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences Grant(XDB09000000)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000393647600015
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8303
Collection星系宇宙学研究部
Affiliation1.Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England
2.ILP, Sorbonne Univ, 98 Bis Blvd Arago, F-75014 Paris, France
3.Univ Paris 06, Lab Phys Nucl & Hautes Energies, F-75252 Paris 05, France
4.Yale Univ, Dept Phys, New Haven, CT 06511 USA
5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Ruggeri, Rossana,Percival, Will J.,Gil-Marin, Hector,et al. Optimal redshift weighting for redshift-space distortions[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,464(3):2698-2707.
APA Ruggeri, Rossana,Percival, Will J.,Gil-Marin, Hector,Zhu, Fangzhou,Zhao, Gong-Bo,&Wang, Yuting.(2017).Optimal redshift weighting for redshift-space distortions.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,464(3),2698-2707.
MLA Ruggeri, Rossana,et al."Optimal redshift weighting for redshift-space distortions".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464.3(2017):2698-2707.
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