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题名: Holographic dark energy in a universe with spatial curvature and massive neutrinos: a full Markov Chain Monte Carlo exploration
作者: Li, YH ;  Wang, S ;  Li, XD ;  Zhang, X
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2013
期号: 2, 页码:33
关键词: PROBE WMAP OBSERVATIONS ;  OBSERVATIONS COSMOLOGICAL INTERPRETATION ;  BARYON ACOUSTIC-OSCILLATIONS ;  HUBBLE-SPACE-TELESCOPE ;  DIGITAL SKY SURVEY ;  EQUATION-OF-STATE ;  DATA RELEASE ;  MODEL ;  CONSTRAINTS ;  CONSTANT
学科分类: Physics
通讯作者: Zhang, X (reprint author), Northeastern Univ, Coll Sci, Dept Phys, Shenyang 110004, Peoples R China.
部门归属: [Li, Yun-He; Wang, Shuang; Zhang, Xin] Northeastern Univ, Coll Sci, Dept Phys, Shenyang 110004, Peoples R China; [Wang, Shuang] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA; [Li, Xiao-Dong] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Li, Xiao-Dong] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Zhang, Xin] Peking Univ, Ctr High Energy Phys, Beijing 100080, Peoples R China
英文摘要: In this paper, we report the results of constraining the holographic dark energy model with spatial curvature and massive neutrinos, based on a Markov Chain Monte Carlo global fit technique. The cosmic observational data include the full WMAP 7-yr temperature and polarization data, the type Ia supernova data from Union2.1 sample, the baryon acoustic oscillation data from SDSS DR7 and WiggleZ Dark Energy Survey, and the latest measurements of H-0 from HST. To deal with the pertubations of dark energy, we adopt the parameterized post-Friedmann method. We find that, for the simplest holographic dark energy model without spatial curvature and massive neutrinos, the phenomenological parameter c < 1 at more than 4 sigma confidence level. The inclusion of spatial curvature enlarges the errors bars and leads to c < 1 only in about 2.5 sigma range; in contrast, the inclusion of massive neutrinos does not have significant influence on c. We also find that, for the holographic dark energy model with spatial curvature but without massive neutrinos, the 3 sigma errors bars of the current fractional curvature density Omega k(0) are still in order 10(-2); for the model with massive neutrinos but without spatial curvature, the 2 sigma upper bound of the total mass of neutrinos is Sigma m(v) < 0.48eV. Moreover, there exists clear degeneracy between spatial curvature and massive neutrinos in the holographic dark energy model, which enlarges the upper bound of Sigma m(v) by more than 2 times. In addition, we demonstrate that, making use of the full WMAP data can give better constraints on the holographic dark energy model, compared with the case using the WMAP "distance priors".
资助者: National Science Foundation of China [10705041, 10975032, 11175042]; National Ministry of Education of China [NCET-09-0276, N100505001]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000315576400033
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15424
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Li, YH,Wang, S,Li, XD,et al. Holographic dark energy in a universe with spatial curvature and massive neutrinos: a full Markov Chain Monte Carlo exploration[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2013(2):33.
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