Cosmological constraints on the generalized holographic dark energy

被引：19
|
作者：
Lu, Jianbo [1 ]
Wang, Yuting [2 ]
Wu, Yabo [1 ]
Wang, Tianqiang [1 ]
机构：
[1] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
[2] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2011年 / 71卷 / 11期
关键词：
CHAPLYGIN-GAS MODEL; ACCELERATING UNIVERSE; SUPERNOVAE DATA; AGES;
D O I：
10.1140/epjc/s10052-011-1800-5
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We use the Markov Chain Monte Carlo method to investigate global constraints on the generalized holographic (GH) dark energy with flat and non-flat universe from the current observed data: the Union2 dataset of type supernovae Ia (SNIa), high-redshift Gamma-Ray Bursts (GRBs), the observational Hubble data (OHD), the cluster X-ray gas mass fraction, the baryon acoustic oscillation (BAO), and the cosmic microwave background (CMB) data. The most stringent constraints on the GH model parameter are obtained. In addition, it is found that the equation of state for this generalized holographic dark energy can cross over the phantom boundary w(de) = -1.
引用
收藏
页码：1 / 10
页数：10
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