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Constraints on holographic dark energy from type Ia supernova observations
Zhang X(张欣); Wu FQ(吴锋泉); Zhang, X; Wu, FQ
2005
发表期刊PHYSICAL REVIEW D
卷号72期号:4页码:43524
通讯作者CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
摘要In this paper, we use the type Ia supernovae data to constrain the holographic dark energy model proposed by Li. We also apply a cosmic age test to this analysis. We consider in this paper a spatially flat Friedmann-Robertson-Walker universe with a matter component and a holographic dark energy component. The fit result shows that the case c < 1 (c=0.21) is favored, which implies that the holographic dark energy behaves as a quintom-type dark energy. Furthermore, we also perform a joint analysis of SNe+CMB+LSS to this model; the result is well improved and still upholds the quintom dark energy conclusion. The best fit results in our analysis are c=0.81, Omega(0)(m)=0.28, and h=0.65, which lead to the present equation of state of dark energy w(0)=-1.03 and the deceleration/acceleration transition redshift z(T)=0.63. Finally, an expected supernova/acceleration probe simulation using Lambda CDM as a fiducial model is performed on this model, and the result shows that the holographic dark energy model takes on c < 1 (c=0.92) even though the dark energy is indeed a cosmological constant.
文章类型Review
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.72.043524
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语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000231565000038
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被引频次:277[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240616
专题理论物理室
作者单位中国科学院高能物理研究所
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Zhang X,Wu FQ,Zhang, X,et al. Constraints on holographic dark energy from type Ia supernova observations[J]. PHYSICAL REVIEW D,2005,72(4):43524.
APA 张欣,吴锋泉,Zhang, X,&Wu, FQ.(2005).Constraints on holographic dark energy from type Ia supernova observations.PHYSICAL REVIEW D,72(4),43524.
MLA 张欣,et al."Constraints on holographic dark energy from type Ia supernova observations".PHYSICAL REVIEW D 72.4(2005):43524.
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