Holographic dark energy in a universe with spatial curvature and massive neutrinos: a full Markov Chain Monte Carlo exploration
文献类型：期刊论文
| 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 |
| ISSN号 | 1475-7516 |
| 通讯作者 | Zhang, X (reprint author), Northeastern Univ, Coll Sci, Dept Phys, Shenyang 110004, 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". |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China [10705041, 10975032, 11175042]; National Ministry of Education of China [NCET-09-0276, N100505001] |
| 原文出处 | http://dx.doi.org/10.1088/1475-7516/2013/02/033 |
| 语种 | 英语 |
| WOS记录号 | WOS:000315576400033 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15424]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | 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. |
| APA | Li, YH,Wang, S,Li, XD,&Zhang, X.(2013).Holographic dark energy in a universe with spatial curvature and massive neutrinos: a full Markov Chain Monte Carlo exploration.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(2),33. |
| MLA | Li, YH,et al."Holographic dark energy in a universe with spatial curvature and massive neutrinos: a full Markov Chain Monte Carlo exploration".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .2(2013):33. |
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来源：理论物理研究所
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