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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
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号464期号:3页码:2698-2707
摘要The 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.
文章类型Article
关键词Surveys Galaxies: Statistics Cosmological Parameters Cosmology: Observations Large-scale Structure Of Universe
WOS标题词Science & Technology ; Physical Sciences
资助者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) ; 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
关键词[WOS]COSMOLOGICAL PARAMETERS ; EIGENMODE ANALYSIS ; POWER-SPECTRUM
收录类别SCI
语种英语
资助者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) ; 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研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000393647600015
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8303
专题星系宇宙学研究部
作者单位1.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
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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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