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Constraints on the cosmological parameters from BICEP2, Planck, and WMAP
Cheng, C; Huang, QG; Cheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2014
发表期刊EUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
卷号74期号:11页码:3139
摘要In 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.
部门归属[Cheng, Cheng
关键词Microwave Background Anisotropies Inflationary Universe Flatness Horizon
学科领域Physics
资助者Chinese 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] ; Chinese 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]
DOI10.1140/epjc/s10052-014-3139-1
URL查看原文
收录类别SCI
语种英语
资助者Chinese 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] ; Chinese 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]
WOS记录号WOS:000347172500001
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15570
专题理论物理所SCI论文
通讯作者Cheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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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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