Implications for cosmology from ground-based Cosmic Microwave Background observations

doi:10.1088/1475-7516/2020/06/045

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	Implications for cosmology from ground-based Cosmic Microwave Background observations
	Wang, Ke 1; Huang, Qing-Guo
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2020
期号	6 页码:45
关键词	LIGHT CURVES CONSTRAINTS SAMPLE
ISSN号	1475-7516
DOI	10.1088/1475-7516/2020/06/045
英文摘要	Cosmic 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.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27361]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.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
推荐引用方式 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.