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Pan, Y1; Cao, S2; Li, L
Constraints on interacting dark energy from time delay lenses
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS D
Language英语
KeywordCosmological parameters - (Cosmology:) dark energy OBSERVATIONAL H(Z) DATA Gravitational lensing: strong GRAVITATIONAL LENSING STATISTICS BARYON ACOUSTIC-OSCILLATIONS PROBE WMAP OBSERVATIONS HUBBLE-SPACE-TELESCOPE EQUATION-OF-STATE ALL-SKY SURVEY COSMOLOGICAL PARAMETERS SCALE STRUCTURE MODEL
AbstractWe use the time delay measurements between multiple images of lensed sources in 18 strongly gravitationally lensed (SGL) systems to put additional constraints on three phenomenological interaction models for dark energy (DE) and dark matter (DM). The compatibility among the fits on the three models seems to imply that the coupling between DE and DM is a small value close to zero, which is compatible with the previous results for constraining interacting DE parameters. We find that, among the three interacting DE models, the gamma(m) IDE model with the interaction term Q proportional to the energy density of DM provides relatively better fits to recent observations. However, the coincidence problem is still very severe in the framework of three interacting DE models, since the fitting results do not show any preference for a nonzero coupling between DE and DM. More importantly, we have studied the significance of the current strong lensing data in deriving the interacting information between dark sectors, which highlights the importance of strong lensing time delay measurements to provide additional observational fits on alternative cosmological models.
2016
Volume25Issue:1Pages:1650003
Subject AreaAstronomy & Astrophysics
DOIhttp://dx.doi.org/10.1142/S0218271816500036
Indexed BySCI
Funding OrganizationMinistry of Science and Technology [2012CB821804, 2014CB845806] ; National Natural Science Foundation of China [11503001, 11073005, 11005164, 11373014, 11447213] ; Chongqing Municipal Education Commission [KJ130535] ; Scientific Research Foundation For Doctor of Chongqing University of Posts and Telecommunications [A2013-25, A2014-43] ; Fundamental Research Funds for the Central Universities ; Scientific Research Foundation of Beijing Normal University ; China Postdoctoral Science Foundation [2014M550642, 2015T80052]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23075
Collection理论物理所科研产出_SCI论文
Affiliation1.Chongqing Univ Posts & Telecommun, Coll Sci, Chongqing 400065, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
Recommended Citation
GB/T 7714
Pan, Y,Cao, S,Li, L. Constraints on interacting dark energy from time delay lenses[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D,2016,25(1):1650003.
APA Pan, Y,Cao, S,&Li, L.(2016).Constraints on interacting dark energy from time delay lenses.INTERNATIONAL JOURNAL OF MODERN PHYSICS D,25(1),1650003.
MLA Pan, Y,et al."Constraints on interacting dark energy from time delay lenses".INTERNATIONAL JOURNAL OF MODERN PHYSICS D 25.1(2016):1650003.
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