Effect of the early reionization on the cosmic microwave background and cosmological parameter estimates

doi:http://dx.doi.org/10.1088/1475-7516/2017/07/042

	Effect of the early reionization on the cosmic microwave background and cosmological parameter estimates
	Wang, K; Huang, QG; Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Zhong Guan Cun East St 55, Beijing 100190, Peoples R China.
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2017
期号	7 页码:42
关键词	Reionization Cmbr Polarisation Cmbr Theory Cosmological Parameters From Cmbr
DOI	http://dx.doi.org/10.1088/1475-7516/2017/07/042
文献子类	Article
英文摘要	The early reionization (ERE) is supposed to be a physical process which happens after recombination, but before the instantaneous reionization caused by the first generation of stars. We investigate the effect of the ERE on the temperature and polarization power spectra of cosmic microwave background (CMB), and adopt principal components analysis (PCA) to model-independently reconstruct the ionization history during the ERE. In addition, we also discuss how the ERE affects the cosmological parameter estimates, and find that the ERE does not impose any significant influences on the tensor-to-scalar ratio r and the neutrino mass at the sensitivities of current experiments. The better CMB polarization data can be used to give a tighter constraint on the ERE and might be important for more precisely constraining cosmological parameters in the future.
学科主题	Astronomy & Astrophysics ; Physics
WOS关键词	BARYON ACOUSTIC-OSCILLATIONS ; GALAXIES ; PLANCK ; POLARIZATION ; CONSTRAINTS ; SAMPLE ; EPOCH
语种	英语
资助机构	NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22186]
专题	计算平台成果
通讯作者	Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Zhong Guan Cun East St 55, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Wang, K,Huang, QG,Huang, QG . Effect of the early reionization on the cosmic microwave background and cosmological parameter estimates[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2017(7):42.
APA	Wang, K,Huang, QG,&Huang, QG .(2017).Effect of the early reionization on the cosmic microwave background and cosmological parameter estimates.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(7),42.
MLA	Wang, K,et al."Effect of the early reionization on the cosmic microwave background and cosmological parameter estimates".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .7(2017):42.