Reconstruction of the primordial power spectrum from CMB data
文献类型：期刊论文
| 作者 | Guo, ZK ; Zhang, YZ
|
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2011 |
| 期号 | 8页码:31 |
| 关键词 | OBSERVATIONS COSMOLOGICAL INTERPRETATION WMAP DATA ANISOTROPY MODEL |
| ISSN号 | 1475-7516 |
| 通讯作者 | Guo, ZK (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China. |
| 英文摘要 | Measuring the deviation from scale invariance of the primordial power spectrum is a critical test of inflation. In this paper we reconstruct the shape of the primordial power spectrum of curvature perturbations from the cosmic microwave background data, including the 7-year Wilkinson Microwave Anisotropy Probe data and the Atacama Cosmology Telescope 148 GHz data, by using a binning method of a cubic spline interpolation in log-log space. We find that the power-law spectrum is preferred by the data and that the Harrison-Zel'dovich spectrum is disfavored at 95% confidence level. These conclusions hold with and without allowing for tensor modes, however the simpler model without tensors is preferred by the data. We do not find evidence for a feature in the primordial power spectrum - in full agreement with generic predictions from cosmological inflation. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Alexander von Humboldt Foundation; Chinese Academy of Science; National Basic Research Program of China [2010CB832805]; Deutsche Forschungsgemeinschaft (DFG) |
| 原文出处 | http://dx.doi.org/10.1088/1475-7516/2011/08/031 |
| 语种 | 英语 |
| WOS记录号 | WOS:000294758200031 |
| 公开日期 | 2013-05-17 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14304]  |
| 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 | Guo, ZK,Zhang, YZ. Reconstruction of the primordial power spectrum from CMB data[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2011(8):31. |
| APA | Guo, ZK,&Zhang, YZ.(2011).Reconstruction of the primordial power spectrum from CMB data.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),31. |
| MLA | Guo, ZK,et al."Reconstruction of the primordial power spectrum from CMB data".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2011):31. |
入库方式： OAI收割
来源：理论物理研究所
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