Non-homogeneous solar models with metal enriched envelopes

doi:10.1007/BF02874430

YNAO OpenIR > 恒星物理研究组

	Non-homogeneous solar models with metal enriched envelopes
	Yang JY(杨家艳); Li Y(李焱); Xu HY(许华崟); Yang, JY (reprint author), NAOCAS, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
	2001-02
卷号	44 期号:2 页码:265-272
DOI	10.1007/BF02874430
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Solar Structure Solar Evolution Solar Oscillations
摘要	Solar models with enhancement of heavy elements in the convective envelopes are investigated using the updated input physics. Unlike previous low-Z models that adopt quite low central metal abundance to considerably reduce neutrino fluxes, we investigate the effects of moderate enrichment of heavy elements in the solar convection zone on the solar structure and p-mode oscillations, It is found that the metal enriched models have less massive convection zones with deeper bottom boundaries, and their temperature profiles are systematically lower while the sound speed profiles are higher in the interior and lower in the envelope than that of the standard model. The contamination of heavy elements at different evolution phases is investigated, which results in little influence on the properties of the solar age models. The surface helium abundance is reduced considerably, and is able to approach the seismically determined value when the enhancement of heavy elements in the convection zone is carefully adjusted. The p-mode frequency patterns of our metal enriched models are systematically 10 mu Hz lower than those of the standard model, and are in better agreement with the results of observations.
语种	英语
学科领域	Mathematics
文章类型	Article
ISSN	1006-9283
URL	查看原文
归档日期	2001-03-26
WOS记录号	WOS:000167195800015
WOS研究方向	Mathematics
WOS类目	Mathematics, Applied ; Mathematics
关键词[WOS]	CONVECTION ZONE ; P-MODES ; FREQUENCIES ; ABUNDANCES ; OPACITIES ; SUN
引用统计
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5155
专题	恒星物理研究组
通讯作者	Yang, JY (reprint author), NAOCAS, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	Yunnan Observatory, NAOCAS, 650011, Kunrning, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Yang JY,Li Y,Xu HY,et al. Non-homogeneous solar models with metal enriched envelopes[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,2001,44(2):265-272.
APA	Yang JY,Li Y,Xu HY,&Yang, JY .(2001).Non-homogeneous solar models with metal enriched envelopes.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,44(2),265-272.
MLA	Yang JY,et al."Non-homogeneous solar models with metal enriched envelopes".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 44.2(2001):265-272.

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