ITP OpenIR  > 理论物理所2015年知识产出
Holographic dark energy with cosmological constant
Hu, YZ; Li, M; Li, N; Zhang, ZH; Zhang, ZH (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2015
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
期号8页码:12
文章类型Article
摘要Inspired by the multiverse scenario, we study a heterotic dark energy model in which there are two parts, the first being the cosmological constant and the second being the holographic dark energy, thus this model is named the AHDE model. By studying the AHDE model theoretically, we find that the parameters d and Omega(hde) are divided into a few domains in which the fate of the universe is quite different. We investigate dynamical behaviors of this model, and especially the future evolution of the universe. We perform fitting analysis on the cosmological parameters in the AHDE model by using the recent observational data. We find the model yields chi(2)(min) = 426.27 when constrained by Planck + SNLS3 + BAO + HST, comparable to the results of the HDE model (428.20) and the concordant ACDM model (431.35). At 68.3% CL, we obtain -0.07 < Omega(A0) < 0.68 and correspondingly 0.04 < Omega(hde0) < 0.79, implying at present there is considerable degeneracy between the holographic dark energy and cosmological constant components in the AHDE model.
关键词Dark Energy Theory Dark Energy Experiments
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China [11275247, 11335012] ; National Natural Science Foundation of China [11275247, 11335012] ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University ; National Natural Science Foundation of China [11275247, 11335012] ; National Natural Science Foundation of China [11275247, 11335012] ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University
DOIhttp://dx.doi.org/10.1088/1475-7516/2015/08/012
关键词[WOS]BARYON ACOUSTIC-OSCILLATIONS ; BLACK-HOLES ; ACCELERATING UNIVERSE ; HUBBLE CONSTANT ; IA SUPERNOVAE ; MODEL ; CONSTRAINTS ; ENTROPY ; THERMODYNAMICS ; PERTURBATIONS
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11275247, 11335012] ; National Natural Science Foundation of China [11275247, 11335012] ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University ; National Natural Science Foundation of China [11275247, 11335012] ; National Natural Science Foundation of China [11275247, 11335012] ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20905
专题理论物理所2015年知识产出
通讯作者Zhang, ZH (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Hu, YZ,Li, M,Li, N,et al. Holographic dark energy with cosmological constant[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2015(8):12.
APA Hu, YZ,Li, M,Li, N,Zhang, ZH,&Zhang, ZH .(2015).Holographic dark energy with cosmological constant.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),12.
MLA Hu, YZ,et al."Holographic dark energy with cosmological constant".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2015):12.
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