Reconstruction of the primordial power spectrum from CMB data

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	Guo, ZK; Schwarz, DJ; Zhang, YZ; Guo, ZK (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
	Reconstruction of the primordial power spectrum from CMB data
发表期刊	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (IF:5.126[JCR-2017],4.45[5-Year])
语种	英语
关键词	Observations Cosmological Interpretation Wmap Data Anisotropy Model
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.
	2011
ISSN	1475-7516
期号	8 页码:31
学科领域	Physics
收录类别	SCI
项目资助者	Alexander von Humboldt Foundation; Chinese Academy of Science; National Basic Research Program of China [2010CB832805]; Deutsche Forschungsgemeinschaft (DFG) ; Alexander von Humboldt Foundation; Chinese Academy of Science; National Basic Research Program of China [2010CB832805]; Deutsche Forschungsgemeinschaft (DFG) ; Alexander von Humboldt Foundation; Chinese Academy of Science; National Basic Research Program of China [2010CB832805]; Deutsche Forschungsgemeinschaft (DFG) ; Alexander von Humboldt Foundation; Chinese Academy of Science; National Basic Research Program of China [2010CB832805]; Deutsche Forschungsgemeinschaft (DFG)
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/14304
专题	SCI期刊论文
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.
推荐引用方式 GB/T 7714	Guo, ZK,Schwarz, DJ,Zhang, YZ,et al. Reconstruction of the primordial power spectrum from CMB data[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2011(8):31.
APA	Guo, ZK,Schwarz, DJ,Zhang, YZ,&Guo, ZK .(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.

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