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Interacting parametrized post-Friedmann method
Richarte, MG; Xu, LX; Richarte, MG (reprint author), Univ Fed Parana UFPR, Dept Fis, Caixa Postal 19044, BR-81531990 Curitiba, Parana, Brazil.; Richarte, MG (reprint author), Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, Ciudad Univ 1428,Pabellon 1, RA-1428 Buenos Aires, DF, Argentina.; Richarte, MG (reprint author), Consejo Nacl Invest Cient & Tecn, IFIBA, Ciudad Univ 1428,Pabellon 1, RA-1033 Buenos Aires, DF, Argentina.
2016
发表期刊GENERAL RELATIVITY AND GRAVITATION
卷号48期号:4页码:39
文章类型Article
摘要We apply the interacting parametrized post-Friedmann (IPPF) method to coupled dark energy models where the interaction is proportional to dark matter density at background level. In the first case, the dark components are treated as fluids and the growth of dark matter perturbations only feel the interaction via the modification of background quantities provided dark matter follows geodesic. We also perform a Markov Chain Monte-Carlo analysis which combines several cosmological probes including the cosmic microwave background(WMAP9+ Planck) data, baryon acoustic oscillation (BAO) measurements, JLA sample of supernovae, Hubble constant (HST), and redshift-space distortion (RSD) measurements through the f sigma(8)(z) data points. The joint observational analysis of Planck + WP+ JLA+ BAO+ HST+ RSD data leads to a coupling parameter, xi(c) = 0.00140(-0.00080)(+0.00079) at 1 sigma level for vanishing momentum transfer potential. On the other hand, we deal with a coupled quintessence model which exhibits a violation of the equivalence principle coming form a coupling term in the modified Euler equation; as a result of that the local Hubble expansion rate and the effective gravitational coupling are both enhanced. Provided that the interaction is parallel to scalar field velocity themomentum transfer potential is switched on, leading to a lower interaction coupling xi(c) = 0.00136(-0.00073)(+0.00080) at 1 sigma level when Planck+ WP+ JLA + BAO + HST + RSD data are combined. Besides, the CMB power spectrum shows up a correlation between the coupling parameter xi(c) and the position of acoustic peaks or their amplitudes. The first peak's height increases when xi(c) takes larger values and its position is shifted. We also obtain the matter power spectrum may be affected by the strength of interaction coupling over scales bigger than 10(-2)hMpc(-1), reducing its amplitude in relation to the vanilla model.
关键词Interacting Dark Energy Model Perturbation Theory Mcmc Cosmic Constraint
学科领域Astronomy & Astrophysics ; Physics
资助者NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; 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] ; CONICET ; CONICET ; CONICET ; CONICET ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; 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] ; CONICET ; CONICET ; CONICET ; CONICET ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
DOIhttp://dx.doi.org/10.1007/s10714-016-2035-4
关键词[WOS]HUBBLE-SPACE-TELESCOPE ; DARK ENERGY SURVEY ; DIGITAL SKY SURVEY ; COSMOLOGICAL PERTURBATION-THEORY ; BARYON ACOUSTIC-OSCILLATIONS ; SUPERNOVA LEGACY SURVEY ; GALAXY REDSHIFT SURVEY ; IA SUPERNOVAE ; GROWTH-RATE ; CONSTRAINTS
收录类别SCI
语种英语
资助者NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; 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] ; CONICET ; CONICET ; CONICET ; CONICET ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; NSFC [11275035] ; 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] ; CONICET ; CONICET ; CONICET ; CONICET ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil ; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
WOS类目Astronomy & Astrophysics ; Physics, Multidisciplinary ; 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/311006/21714
专题理论物理所SCI论文
通讯作者Richarte, MG (reprint author), Univ Fed Parana UFPR, Dept Fis, Caixa Postal 19044, BR-81531990 Curitiba, Parana, Brazil.; Richarte, MG (reprint author), Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, Ciudad Univ 1428,Pabellon 1, RA-1428 Buenos Aires, DF, Argentina.; Richarte, MG (reprint author), Consejo Nacl Invest Cient & Tecn, IFIBA, Ciudad Univ 1428,Pabellon 1, RA-1033 Buenos Aires, DF, Argentina.
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Richarte, MG,Xu, LX,Richarte, MG ,et al. Interacting parametrized post-Friedmann method[J]. GENERAL RELATIVITY AND GRAVITATION,2016,48(4):39.
APA Richarte, MG,Xu, LX,Richarte, MG ,Richarte, MG ,&Richarte, MG .(2016).Interacting parametrized post-Friedmann method.GENERAL RELATIVITY AND GRAVITATION,48(4),39.
MLA Richarte, MG,et al."Interacting parametrized post-Friedmann method".GENERAL RELATIVITY AND GRAVITATION 48.4(2016):39.
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