Most frequent value statistics and distribution of Li-7 abundance observations
文献类型：期刊论文
| 作者 | Zhang J(张江)1,2
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 468期号:4页码:5014-5019 |
| ISSN号 | 0035-8711 |
| 关键词 | nuclear reactions, nucleosynthesis, abundances methods: statistical stars: abundances star: statistics |
| 通讯作者 | Zhang, J.(Hebei GEO Univ, Dept Math & Phys, Shijiazhuang 050016, Peoples R China) |
| 产权排序 | 第2完成单位 |
| 英文摘要 | The problem of primordial lithium is one of the key issues in many astrophysical fields, especially nuclear astrophysics and cosmology. We apply a novel modern statistical method - the most frequent value (MFV) procedure - to study the distribution modelling for Li-7 abundance observations, constructing a robust and effective astrostatistical algorithm. Considering prior non-Gaussian error distributions of measurements of astrophysical quantities, the robust MFV method is essential as a standard statistical algorithm, according to the minimization for the information loss principle. Associated with global optimization, the MFV procedure has already been shown to be a more powerful tool than some classic statistical algorithms originating from the least-squares or maximum likelihood principle for dealing with the unknown distribution problems of observed astrophysical quantities. Applying the MFV algorithm, we obtain the MFV M = 2.205 and the dihesion epsilon = 0.067 of A(Li) measurements, which demonstrate certain advantages to solving problems with a non-Gaussian error distribution. |
| 学科主题 | 天文学 |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | NEUTRON-CAPTURE ELEMENTS ; PROBE WMAP OBSERVATIONS ; MEDIAN STATISTICS ; HUBBLE CONSTANT ; RED GIANTS ; LITHIUM ; STARS ; SUPERNOVAE ; NUCLEOSYNTHESIS ; UNIVERSE |
| 收录类别 | SCI |
| 原文出处 | https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stx627 |
| 语种 | 英语 |
| WOS记录号 | WOS:000402819700098 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/10092]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 作者单位 | 1.Department of Mathematics and Physics, Hebei GEO University, Shijiazhuang 050016, China 2.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, China |
| 推荐引用方式 GB/T 7714 | Zhang J. Most frequent value statistics and distribution of Li-7 abundance observations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,468(4):5014-5019. |
| APA | Zhang J.(2017).Most frequent value statistics and distribution of Li-7 abundance observations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,468(4),5014-5019. |
| MLA | Zhang J."Most frequent value statistics and distribution of Li-7 abundance observations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 468.4(2017):5014-5019. |
入库方式： OAI收割
来源：云南天文台
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