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Gao, Q; Gong, YG; Gong, YG (reprint author), Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Quant Measurement, Wuhan 430074, Peoples R China.
The tension on the cosmological parameters from different observational data
Source PublicationCLASSICAL AND QUANTUM GRAVITY
Language英语
KeywordBaryon Acoustic-oscillations Equation-of-state Dark-energy Ia Supernovae Measurement Constraints Cosmic Acceleration Redshift Gravity Space Constant
AbstractPlanck measurements of the cosmic microwave background power spectra find a lower value of the Hubble constant H-0 and a higher value of the fractional matter energy density Omega(m0) for the concordance Lambda CDMmodel, and these results are in tension with other measurements. The Planck group argued that the tension came either from some sources of unknown systematic errors in some astrophysical measurements or the wrong Lambda CDM model applied in fitting the data. We studied the reason for the tension on H-0 from different measurements by considering two dynamical dark energy models. We found that there is no tension between different data, the constraint on H-0 is almost unchanged for different dark energy models and the tension with the local measurements remains when the error bar on H-0 is tightened to be around 1. We argue that the tension on H-0 is not caused by the fitting model.
2014
ISSN0264-9381
Volume31Issue:10Pages:105007
Subject AreaPhysics
DOI10.1088/0264-9381/31/10/105007
Indexed BySCI
Funding OrganizationNational Basic Science Program (Project 973) of China [2010CB833004]; NNSF of China [10935013, 11175270]; Program for New Century Excellent Talents in University [NCET-12-0205]; Fundamental Research Funds for the Central Universities [2013YQ055] ; National Basic Science Program (Project 973) of China [2010CB833004]; NNSF of China [10935013, 11175270]; Program for New Century Excellent Talents in University [NCET-12-0205]; Fundamental Research Funds for the Central Universities [2013YQ055] ; National Basic Science Program (Project 973) of China [2010CB833004]; NNSF of China [10935013, 11175270]; Program for New Century Excellent Talents in University [NCET-12-0205]; Fundamental Research Funds for the Central Universities [2013YQ055] ; National Basic Science Program (Project 973) of China [2010CB833004]; NNSF of China [10935013, 11175270]; Program for New Century Excellent Talents in University [NCET-12-0205]; Fundamental Research Funds for the Central Universities [2013YQ055]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15757
Collection理论物理所科研产出_SCI论文
Corresponding AuthorGong, YG (reprint author), Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Quant Measurement, Wuhan 430074, Peoples R China.
Recommended Citation
GB/T 7714
Gao, Q,Gong, YG,Gong, YG . The tension on the cosmological parameters from different observational data[J]. CLASSICAL AND QUANTUM GRAVITY,2014,31(10):105007.
APA Gao, Q,Gong, YG,&Gong, YG .(2014).The tension on the cosmological parameters from different observational data.CLASSICAL AND QUANTUM GRAVITY,31(10),105007.
MLA Gao, Q,et al."The tension on the cosmological parameters from different observational data".CLASSICAL AND QUANTUM GRAVITY 31.10(2014):105007.
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