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Wang, Ke1; Huang, Qing-Guo
Implications for cosmology from ground-based Cosmic Microwave Background observations
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordLIGHT CURVES CONSTRAINTS SAMPLE
AbstractCosmic Microwave Background (CMB) anisotropy encodes a lot of information about our Universe. In this paper we take the ground-based CMB observations (GCMB), including the South Pole Telescope (SPT), SPTpol and the Atacama Cosmology Telescope Polarimeter (ACTPol), as a new probe to the CMB anisotropy independent of two satellite observations, i.e. Wilkinson Microwave Anisotropy Probe (WMAP) and Planck. The combination of current GCMB data is consistent with WMAP and Planck. In the spatially flat ACDM model, the Hubble constant is H-0 = 69.72 +/- 1.63 km/s/Mpc at 68% confidence level (CL). Combining with baryon acoustic oscillation (BAO) and the Pantheon sample of Type Ia supernovae (SN), we find that H-0 = 68.40 +/- 0.58 km/s/Mpc (68% CL) in the spatially flat ACDM cosmology which has a tension with local measurement given by Riess et al. in 2019 at 3.7 sigma level, and Omega k = -0.0013 +/- 0.0039 and N-eff = 2.90 +/- 0.41 (68% CL) in the extended cosmological models.
2020
ISSN1475-7516
Issue6Pages:45
Cooperation Status国内
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1088/1475-7516/2020/06/045
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27361
CollectionSCI期刊论文
Affiliation1.Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Res Ctr Gravitat, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
5.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, 36 Lushan Lu, Changsha 410081, Peoples R China
6.Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, 88 South Univ Ave, Yangzhou 225009, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Ke,Huang, Qing-Guo. Implications for cosmology from ground-based Cosmic Microwave Background observations[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2020(6):45.
APA Wang, Ke,&Huang, Qing-Guo.(2020).Implications for cosmology from ground-based Cosmic Microwave Background observations.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),45.
MLA Wang, Ke,et al."Implications for cosmology from ground-based Cosmic Microwave Background observations".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2020):45.
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