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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
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordObservations Cosmological Interpretation Wmap Data Anisotropy Model
AbstractMeasuring 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
ISSN1475-7516
Issue8Pages:31
Subject AreaPhysics
Indexed BySCI
Funding OrganizationAlexander 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)
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14304
Collection理论物理所科研产出_SCI论文
Corresponding AuthorGuo, ZK (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Recommended Citation
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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