Constraints on the cosmological parameters from BICEP2, Planck, and WMAP

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	Constraints on the cosmological parameters from BICEP2, Planck, and WMAP
	Huang, QG
刊名	EUROPEAN PHYSICAL JOURNAL C
	2014
卷号	74 期号:11 页码:3139
关键词	MICROWAVE BACKGROUND ANISOTROPIES INFLATIONARY UNIVERSE FLATNESS HORIZON
ISSN号	1434-6044
通讯作者	Cheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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.
学科主题	Physics
收录类别	SCI
资助信息	Chinese Academy of Science; NSFC [10821504, 11322545, 11335012]
原文出处	http://dx.doi.org/10.1140/epjc/s10052-014-3139-1
语种	英语
WOS记录号	WOS:000347172500001
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15570]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Huang, QG. Constraints on the cosmological parameters from BICEP2, Planck, and WMAP[J]. EUROPEAN PHYSICAL JOURNAL C,2014,74(11):3139.
APA	Huang, QG.(2014).Constraints on the cosmological parameters from BICEP2, Planck, and WMAP.EUROPEAN PHYSICAL JOURNAL C,74(11),3139.
MLA	Huang, QG."Constraints on the cosmological parameters from BICEP2, Planck, and WMAP".EUROPEAN PHYSICAL JOURNAL C 74.11(2014):3139.