TURBULENT CONVECTION MODEL IN THE OVERSHOOTING REGION. I. EFFECTS OF THE CONVECTIVE MIXING IN THE SOLAR OVERSHOOTING REGION

	TURBULENT CONVECTION MODEL IN THE OVERSHOOTING REGION. I. EFFECTS OF THE CONVECTIVE MIXING IN THE SOLAR OVERSHOOTING REGION
	Zhang QS(张钱生)1,2,3 ; Li Y(李焱)1,2
刊名	ASTROPHYSICAL JOURNAL
	2012-02-10
卷号	746 期号:1
关键词	convection diffusion Sun: helioseismology Sun: interior turbulence
ISSN号	0004-637X
通讯作者	Zhang, QS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	The overshooting in the framework of the turbulent convection model is investigated in the solar overshooting region. The overshooting mixing is treated as a diffusive process. It is found that the sound speed profile can be improved to be in good agreement with helioseismic inversions. The bump in the sound speed differences between solar models and the helioseismical inversions below the base of the solar convective envelope is almost eliminated by the overshooting mixing. The overshooting mixing leads to a significant depletion of Li in the main-sequence stage. Li abundance in the solar surface can be reduced to about 1% of its initial abundance in the solar models with the overshooting mixing. The solar model with the overshooting shows a smooth profile of the temperature gradient, which is also favored by the helioseismology.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	NONLOCAL CONVECTION ; CHEMICAL-COMPOSITION ; ELEMENT DIFFUSION ; ZONE ; ABUNDANCES ; HELIOSEISMOLOGY ; OPACITIES ; BASE ; ENVELOPE ; STARS
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/746/1/50/meta
语种	英语
WOS记录号	WOS:000302861300050
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5224]
专题	云南天文台_恒星物理研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 2.Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.Graduate School of Chinese Academy of Sciences, Beijing 100039, China
推荐引用方式 GB/T 7714	Zhang QS,Li Y. TURBULENT CONVECTION MODEL IN THE OVERSHOOTING REGION. I. EFFECTS OF THE CONVECTIVE MIXING IN THE SOLAR OVERSHOOTING REGION[J]. ASTROPHYSICAL JOURNAL,2012,746(1).
APA	Zhang QS,&Li Y.(2012).TURBULENT CONVECTION MODEL IN THE OVERSHOOTING REGION. I. EFFECTS OF THE CONVECTIVE MIXING IN THE SOLAR OVERSHOOTING REGION.ASTROPHYSICAL JOURNAL,746(1).
MLA	Zhang QS,et al."TURBULENT CONVECTION MODEL IN THE OVERSHOOTING REGION. I. EFFECTS OF THE CONVECTIVE MIXING IN THE SOLAR OVERSHOOTING REGION".ASTROPHYSICAL JOURNAL 746.1(2012).