Does solar structure vary with solar magnetic activity?

被引：35

作者：

Basu, S ^{[1
]}

Mandel, A ^{[1
]}

机构：

[1] Yale Univ, Dept Astron, New Haven, CT 06520 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 617卷 / 02期

基金：

美国国家科学基金会;

关键词：

Sun : activity; Sun : helioseismology; Sun : interior; Sun : oscillations;

D O I：

10.1086/427435

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present evidence that solar structure changes with changes in solar activity. We find that the adiabatic index, Gamma(1), changes near the second helium ionization, i.e., at a depth of about 0.98 R-circle dot. We believe that this change is a result of the change in the effective equation of state caused by magnetic fields. Inversions should be able to detect the changes in Gamma(1) if mode sets with reliable and precise high-degree modes are available.

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收藏

页码：L155 / L158

页数：4

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