THE SOLAR ABUNDANCE PROBLEM: THE EFFECT OF THE TURBULENT KINETIC FLUX ON THE SOLAR ENVELOPE MODEL

	THE SOLAR ABUNDANCE PROBLEM: THE EFFECT OF THE TURBULENT KINETIC FLUX ON THE SOLAR ENVELOPE MODEL
	Zhang QS(张钱生)1,2
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2014-06-01
卷号	787 期号:2
关键词	convection Sun: abundances turbulence
ISSN号	2041-8205
通讯作者	Zhang, QS (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Recent three-dimensional (3D) simulations have shown that the turbulent kinetic flux (TKF) is significant. We discuss the effects of TKF on the size of the convection zone and find that the TKF may help solve the solar abundance problem. The solar abundance problem is that, with new abundances, the solar convection zone depth, the sound speed in the radiative interior, the helium abundance, and the density in the convective envelope are not in agreement with helioseismic inversions. We have performed Monte Carlo simulations on solar convective envelope models with different profiles of TKF to test its effects. The solar abundance problem is revealed in the standard solar convective envelope model with AGSS09 composition, which shows significant differences (similar to 10%) in density from the helioseismic inversions, but the differences in the model with the old composition GN93 is small (similar to 0.5%). In the testing models with a different TKF imposed, it is found that the density profile is sensitive to the value of TKF at the base of the convective envelope and insensitive to the structure of TKF in the convection zone. The required value of turbulent kinetic luminosity at the base is about -13% to - 19% L-circle dot. Comparing with the 3D simulations, this value is plausible. This study is for the solar convective envelope only. Evolutionary solar models with TKF are required to investigat the effects of TKF on the solar interior structure below the convection zone and the whole solar abundance problem, but the profile of the TKF in the overshoot region is necessary.
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]	CONVECTION ZONE ; REVISED ABUNDANCES ; OPACITIES ; DEPTH ; I. ; HELIOSEISMOLOGY ; OVERSHOOT ; LIGHT
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/2041-8205/787/2/L28/meta
语种	英语
WOS记录号	WOS:000336797700013
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5238]
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.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China
推荐引用方式 GB/T 7714	Zhang QS. THE SOLAR ABUNDANCE PROBLEM: THE EFFECT OF THE TURBULENT KINETIC FLUX ON THE SOLAR ENVELOPE MODEL[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,787(2).
APA	Zhang QS.(2014).THE SOLAR ABUNDANCE PROBLEM: THE EFFECT OF THE TURBULENT KINETIC FLUX ON THE SOLAR ENVELOPE MODEL.ASTROPHYSICAL JOURNAL LETTERS,787(2).
MLA	Zhang QS."THE SOLAR ABUNDANCE PROBLEM: THE EFFECT OF THE TURBULENT KINETIC FLUX ON THE SOLAR ENVELOPE MODEL".ASTROPHYSICAL JOURNAL LETTERS 787.2(2014).