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Constraints on f(R) gravity through the redshift space distortion
Xu, LX; Xu, LX (reprint author), Dalian Univ Technol, Inst Theoret Phys, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China.
2015
发表期刊PHYSICAL REVIEW D
卷号91期号:6页码:63008
文章类型Article
摘要In this paper, a specific family of f(R) models that can produce the Lambda CDM background expansion history is constrained by using the currently available geometric and dynamic probes. The scale dependence of the growth rate f(z, k) in this specific family of f(R) model is shown. Therefore to eliminate the scale dependence of f sigma(8)(z) in theory, which usually is defined as the product of f(z, k) and sigma(8)(z), we define f sigma(8)(z) = d sigma(8)(z)/d ln a, which is obviously scale independent and reproduces the conventional definition in the standard Lambda CDM cosmology. In doing so, under the assumption that future probes having the same best fit values as the current ten data points of f sigma(8)(z), even having 20% error bars enlarged, we find a preliminary constraint f(R0) = -2.58(-0.58)(+2.14) x 10(-6) in 1 sigma regions. This indicates the great potential that redshift space distortions have in constraining modified gravity theories. We also discuss the nonlinear matter power spectrum based on different halo fit models.
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1]
DOIhttp://dx.doi.org/10.1103/PhysRevD.91.063008
关键词[WOS]BARYON ACOUSTIC-OSCILLATIONS ; MATTER POWER SPECTRUM ; HUBBLE CONSTANT ; GROWTH-RATE ; GALAXIES ; MODEL ; I.
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; National Natural Science Foundation of China [11275035, 11491240169] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Fundamental Research Funds for the Central Universities [DUT13LK01] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences [Y4KF101CJ1]
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21050
专题理论物理所SCI论文
通讯作者Xu, LX (reprint author), Dalian Univ Technol, Inst Theoret Phys, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China.
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GB/T 7714
Xu, LX,Xu, LX . Constraints on f(R) gravity through the redshift space distortion[J]. PHYSICAL REVIEW D,2015,91(6):63008.
APA Xu, LX,&Xu, LX .(2015).Constraints on f(R) gravity through the redshift space distortion.PHYSICAL REVIEW D,91(6),63008.
MLA Xu, LX,et al."Constraints on f(R) gravity through the redshift space distortion".PHYSICAL REVIEW D 91.6(2015):63008.
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