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Cosmological constraints on the new holographic dark energy model with action principle
Li, M; Li, XD; Meng, J; Zhang, ZH; Li, M (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
2013
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号88期号:2页码:23503
摘要Recently, 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.
部门归属[Li, Miao; Li, Xiao-Dong; Meng, Jun; Zhang, Zhenhui] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Li, Miao; Meng, Jun; Zhang, Zhenhui] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Li, Miao; Meng, Jun; Zhang, Zhenhui] Chinese Acad Sci, State Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China; [Li, Xiao-Dong] Korea Inst Adv Study, Seoul 130722, South Korea
关键词Baryon Acoustic-oscillations Hubble-space-telescope Black-holes Accelerating Universe Power Spectrum Data Release Constant Entropy Thermodynamics Quintessence
学科领域Physics
资助者NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504]
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收录类别SCI
语种英语
资助者NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504] ; NSFC [10535060/A050207, 10975172, 10821504]
WOS记录号WOS:000321125500003
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15337
专题理论物理所SCI论文
通讯作者Li, M (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
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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