MODEL-INDEPENDENT DETERMINATION OF CURVATURE PARAMETER USING H(z) AND D-A (z) DATA PAIRS FROM BAO MEASUREMENTS
文献类型：期刊论文
| 作者 | Li, YL; Li, SY; Zhang, TJ; Li, TP;李惕碚 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 789期号:1页码:L15 |
| 关键词 | cosmological parameters cosmology: observations |
| 英文摘要 | We present a model-independent determination of the curvature parameter Omega(k) using the Hubble parameter H(z) and the angular diameter distance D-A(z) from recent baryon acoustic oscillation (BAO) measurements. Each H(z) and D-A(z) pair from a BAO measurement can constrain a curvature parameter. The accuracy of the curvature measurement improves with increased redshift of H(z) and D-A(z) data. By using the H(z) and D-A(z) pair derived from a BAO Lyman a forest measurement at z = 2.36, the Omega(k) is confined to be -0.05 +/- 0.06, which is consistent with the curvature of -0.037(-0.042) (+0.044) constrained by the nine year Wilkinson Microwave Anisotropy Probe data only. Considering future BAOmeasurements, at least one order of magnitude improvement of this curvature measurement can be expected. |
| 学科主题 | Astronomy & Astrophysics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000338563300015 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224853]  |
| 专题 | 高能物理研究所_院士 |
| 推荐引用方式 GB/T 7714 | Li, YL,Li, SY,Zhang, TJ,et al. MODEL-INDEPENDENT DETERMINATION OF CURVATURE PARAMETER USING H(z) AND D-A (z) DATA PAIRS FROM BAO MEASUREMENTS[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,789(1):L15. |
| APA | Li, YL,Li, SY,Zhang, TJ,&Li, TP；李惕碚.(2014).MODEL-INDEPENDENT DETERMINATION OF CURVATURE PARAMETER USING H(z) AND D-A (z) DATA PAIRS FROM BAO MEASUREMENTS.ASTROPHYSICAL JOURNAL LETTERS,789(1),L15. |
| MLA | Li, YL,et al."MODEL-INDEPENDENT DETERMINATION OF CURVATURE PARAMETER USING H(z) AND D-A (z) DATA PAIRS FROM BAO MEASUREMENTS".ASTROPHYSICAL JOURNAL LETTERS 789.1(2014):L15. |
入库方式： OAI收割
来源：高能物理研究所
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