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题名: Constraints on the cosmological parameters from BICEP2, Planck, and WMAP
作者: Cheng, C ;  Huang, QG
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2014
卷号: 74, 期号:11, 页码:3139
关键词: MICROWAVE BACKGROUND ANISOTROPIES ;  INFLATIONARY UNIVERSE ;  FLATNESS ;  HORIZON
学科分类: Physics
DOI: 10.1140/epjc/s10052-014-3139-1
通讯作者: Cheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Cheng, Cheng
英文摘要: 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.
资助者: Chinese Academy of Science; NSFC [10821504, 11322545, 11335012]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000347172500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15570
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Cheng, C,Huang, QG. Constraints on the cosmological parameters from BICEP2, Planck, and WMAP[J]. EUROPEAN PHYSICAL JOURNAL C,2014,74(11):3139.
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文件名: Constraints on the cosmological parameters from BICEP2, Planck, and WMAP.pdf
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