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Cheng, C; Huang, QG; Cheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Constraints on the cosmological parameters from BICEP2, Planck, and WMAP
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
KeywordMicrowave Background Anisotropies Inflationary Universe Flatness Horizon
AbstractIn this paper we constrain the cosmological parameters, in particular the tilt of tensor power spectrum, by adopting Background Imaging of Cosmic Extragalactic Polarization (B2), Planck released in 2013 and Wilkinson Microwaves Anisotropy Probe 9-year Polarization data. We find that a blue tilted tensor power spectrum is preferred at more than 3 sigma confidence level if the data from B2 are assumed to be totally interpreted as the relic gravitational waves, but a scale-invariant tensor power spectrum is consistent with the data once the polarized dust is taken into account. The recent Planck 353 GHz HFI dust polarization data imply that the B2 data are perfectly consistent with there being no gravitational wave signal.
2014
ISSN1434-6044
Volume74Issue:11Pages:3139
Subject AreaPhysics
DOI10.1140/epjc/s10052-014-3139-1
Indexed BySCI
Funding OrganizationChinese Academy of Science; NSFC [10821504, 11322545, 11335012] ; Chinese Academy of Science; NSFC [10821504, 11322545, 11335012] ; Chinese Academy of Science; NSFC [10821504, 11322545, 11335012] ; Chinese Academy of Science; NSFC [10821504, 11322545, 11335012]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15570
Collection理论物理所科研产出_SCI论文
Corresponding AuthorCheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Cheng, C,Huang, QG,Cheng, C . Constraints on the cosmological parameters from BICEP2, Planck, and WMAP[J]. EUROPEAN PHYSICAL JOURNAL C,2014,74(11):3139.
APA Cheng, C,Huang, QG,&Cheng, C .(2014).Constraints on the cosmological parameters from BICEP2, Planck, and WMAP.EUROPEAN PHYSICAL JOURNAL C,74(11),3139.
MLA Cheng, C,et al."Constraints on the cosmological parameters from BICEP2, Planck, and WMAP".EUROPEAN PHYSICAL JOURNAL C 74.11(2014):3139.
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