ITP OpenIR  > SCI期刊论文
Huang, QG; Wang, K; 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.
Effect of the early reionization on the cosmic microwave background and cosmological parameter estimates
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordReionization Cmbr Polarisation Cmbr Theory Cosmological Parameters From Cmbr
Abstract

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.

2017
Issue7Pages:42
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1088/1475-7516/2017/07/042
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22186
CollectionSCI期刊论文
Corresponding AuthorHuang, 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.
Recommended Citation
GB/T 7714
Huang, QG,Wang, K,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 Huang, QG,Wang, K,&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 Huang, QG,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.
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