ITP OpenIR  > 理论物理所科研产出  > SCI论文
Li, M; Li, XD; Meng, J; Zhang, ZH; Li, M (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
Cosmological constraints on the new holographic dark energy model with action principle
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordBaryon Acoustic-oscillations Hubble-space-telescope Black-holes Accelerating Universe Power Spectrum Data Release Constant Entropy Thermodynamics Quintessence
AbstractRecently, a new holographic dark energy (HDE) model with action principle was proposed [M. Li and R. X. Miao, arXiv:1210.0966]. It is the first time that the HDE model is derived from the action principle. This model completely solves the causality and circular problems in the original HDE model and automatically gives rise to a dark radiation component. Thus, it is worth investigating such an interesting model by confronting it with the current cosmological observations, so that we can check whether the model is consistent with the data and determine the regions of parameter space allowed. These issues are explored in this work. First, we investigate the dynamical behaviors and the cosmic expansion history of the model and discuss how they are related with the model parameter c. Then, we fit the model to a combination of the present Union2.1 + BAO + CMB + H-0 data. We find the model yields chi(2)(min) = 548: 798 (in a nonflat universe), comparable to the results of the original HDE model (549.461) and the concordant Lambda CDM model (550.354). At 95.4% C. L., we get 1.41 < c < 3.09 and correspondingly -2.25 < w(z = -1) < -1.39, implying the big-rip fate of the Universe at a high confidence level. Besides, for the constraints on dark radiation, we also get a rough estimation N-eff = 3.54(-0.45-0.76)(+0.32+0.67), with the central value slightly larger than the standard value 3.046.
2013
ISSN1550-7998
Volume88Issue:2Pages:23503
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504]
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15337
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, M (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Li, M,Li, XD,Meng, J,et al. Cosmological constraints on the new holographic dark energy model with action principle[J]. PHYSICAL REVIEW D,2013,88(2):23503.
APA Li, M,Li, XD,Meng, J,Zhang, ZH,&Li, M .(2013).Cosmological constraints on the new holographic dark energy model with action principle.PHYSICAL REVIEW D,88(2),23503.
MLA Li, M,et al."Cosmological constraints on the new holographic dark energy model with action principle".PHYSICAL REVIEW D 88.2(2013):23503.
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