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Most frequent value statistics and distribution of Li-7 abundance observations
Zhang J(张江)1,2; Zhang, J.(Hebei GEO Univ, Dept Math & Phys, Shijiazhuang 050016, Peoples R China)
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2017-07-01
卷号468期号:4页码:5014-5019
DOI10.1093/mnras/stx627
产权排序第2完成单位
收录类别SCI
关键词Methods: Statistical Stars: Abundances Star: Statistics Nuclear Reactions Nucleosynthesis Abundances
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.
项目资助者National Natural Science Foundation of China(11547041, 11403007, 11673007, 11643007, 11333004, U1531130, 11673059, 11390374, 11521303) ; Chinese Academy of Sciences(KJZD-EW-M06-01, QYZDB-SSW-SYS00)
语种英语
学科领域天文学
文章类型Article
ISSN0035-8711
URL查看原文
WOS记录号WOS:000402819700098
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]NEUTRON-CAPTURE ELEMENTS ; PROBE WMAP OBSERVATIONS ; MEDIAN STATISTICS ; HUBBLE CONSTANT ; RED GIANTS ; LITHIUM ; STARS ; SUPERNOVAE ; NUCLEOSYNTHESIS ; UNIVERSE
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/10092
专题大样本恒星演化研究组
通讯作者Zhang, J.(Hebei GEO Univ, Dept Math & Phys, Shijiazhuang 050016, Peoples R China)
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
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GB/T 7714
Zhang J,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,&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,et al."Most frequent value statistics and distribution of Li-7 abundance observations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 468.4(2017):5014-5019.
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