Optimal redshift weighting for redshift-space distortions

	Optimal redshift weighting for redshift-space distortions
	Ruggeri, Rossana 1; Percival, Will J.1; Gil-Marin, Hector 1,2,3; Zhu, Fangzhou 4; Zhao, Gong-Bo1,5 ; Wang, Yuting1,5
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2017
卷号	464 期号:3 页码:2698-2707
关键词	surveys galaxies: statistics cosmological parameters cosmology: observations large-scale structure of Universe
英文摘要	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.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	COSMOLOGICAL PARAMETERS ; EIGENMODE ANALYSIS ; POWER-SPECTRUM
收录类别	SCI
语种	英语
WOS记录号	WOS:000393647600015
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8303]
专题	国家天文台_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
推荐引用方式 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.