Probing the primordial Universe from the low-multipole CMB data

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Probing the primordial Universe from the low-multipole CMB data
	Huang, QG
刊名	PHYSICS LETTERS B
	2014
卷号	738 期号:-页码:140-143
关键词	MICROWAVE BACKGROUND ANISOTROPIES INFLATIONARY UNIVERSE GRAVITATIONAL-WAVES COSMOLOGICAL MODEL ANGULAR VARIATIONS PERTURBATIONS FLATNESS HORIZON
ISSN号	0370-2693
通讯作者	Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	Since the temperature fluctuations in the cosmic microwave background (CMB) on large-angular scales probe length scales that were super-horizon sized at photon decoupling and hence insensitive to microphysical processes, the low-multipole CMB data are supposed to be a good probe to the physics of the primordial Universe. In this letter we will constrain the cosmological parameters in the base Lambda CDM model with tensor perturbations by only using the low-multipole CMB data, including Background Imaging of Cosmic Extragalactic Polarization (B2), Planck data released in 2013 (P13) and Wilkinson Microwaves Anisotropy Probe 9-year data (W9). We find that either sign of the index of the tensor power spectrum is compatible with the data, but a blue-tilted power spectrum of scalar perturbations on large scales is preferred at around 2 sigma confidence level. (C) 2014 The Authors. Published by Elsevier B. V.
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/10.1016/j.physletb.2014.09.036
语种	英语
WOS记录号	WOS:000344624900021
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15574]
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. Probing the primordial Universe from the low-multipole CMB data[J]. PHYSICS LETTERS B,2014,738(-):140-143.
APA	Huang, QG.(2014).Probing the primordial Universe from the low-multipole CMB data.PHYSICS LETTERS B,738(-),140-143.
MLA	Huang, QG."Probing the primordial Universe from the low-multipole CMB data".PHYSICS LETTERS B 738.-(2014):140-143.