The tension on the cosmological parameters from different observational data
文献类型：期刊论文
| 作者 | Gao, Q; Gong, YG |
| 刊名 | CLASSICAL AND QUANTUM GRAVITY
 |
| 出版日期 | 2014 |
| 卷号 | 31期号:10页码:105007 |
| 关键词 | BARYON ACOUSTIC-OSCILLATIONS EQUATION-OF-STATE DARK-ENERGY IA SUPERNOVAE MEASUREMENT CONSTRAINTS COSMIC ACCELERATION REDSHIFT GRAVITY SPACE CONSTANT |
| ISSN号 | 0264-9381 |
| 通讯作者 | Gong, YG (reprint author), Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Quant Measurement, Wuhan 430074, Peoples R China. |
| 英文摘要 | Planck 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. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | 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] |
| 原文出处 | http://dx.doi.org/10.1088/0264-9381/31/10/105007 |
| 语种 | 英语 |
| WOS记录号 | WOS:000336092700008 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15757]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Gao, Q,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.(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. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。