SPATIAL RICCI SCALAR DARK ENERGY MODEL
文献类型：期刊论文
| 作者 | Yang, Rong-Jia1; Zhu, Zong-Hong2; Wu, Fengquan3
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| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
 |
| 出版日期 | 2011-01-20 |
| 卷号 | 26期号:2页码:317-329 |
| 关键词 | Dark energy spatial Ricci scalar SNIa perturbations |
| 英文摘要 | Inspired by the holographic principle, we suggest that the density of dark energy is proportional to the spatial Ricci scalar curvature (SRDE). Such a model is phenomenologically viable. The best fit values of its parameters at 68% confidence level are found to be Omega(m0) = 0.259 +/- 0.016 and alpha = 0.261 +/- 0.0122, constrained from the Union+CFA3 sample of 397 SNIa and the BAO measurement. We find that the equation of state of SRDE crosses -1 at z similar or equal to -0.14. The present value of the deceleration parameter q(z) for SRDE is found to be q(z=0) similar to -0.85. The phase transition from deceleration to acceleration of the Universe for SRDE occurs at the redshift z(q=0) similar to 0.4. After studying the perturbation of each component of the Universe, we show that the matter power spectra and cosmic microwave background temperature anisotropy are slightly affected by SRDE, compared with Lambda CDM. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000286612300008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8033]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China 2.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Rong-Jia,Zhu, Zong-Hong,Wu, Fengquan. SPATIAL RICCI SCALAR DARK ENERGY MODEL[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2011,26(2):317-329. |
| APA | Yang, Rong-Jia,Zhu, Zong-Hong,&Wu, Fengquan.(2011).SPATIAL RICCI SCALAR DARK ENERGY MODEL.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,26(2),317-329. |
| MLA | Yang, Rong-Jia,et al."SPATIAL RICCI SCALAR DARK ENERGY MODEL".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 26.2(2011):317-329. |
入库方式： OAI收割
来源：国家天文台
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