Changes in high-degree mode characteristics with magnetic activity

被引：0

作者：

Bogart, RS ^{[1
]}

Basu, S ^{[1
]}

Antia, HM ^{[1
]}

机构：

[1] Stanford Univ, Stanford, CA 94305 USA

来源：

PROCEEDINGS OF THE SOHO 11 SYMPOSIUM ON FROM SOLAR MIN TO MAX: HALF A SOLAR CYCLE WITH SOHO | 2002年 / 508卷

关键词：

helioseismology; ring-diagrams; mode parameters; solar magnetic activity;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compare mode frequencies and other characteristics as determined from ring-diagram analysis of selected small regions of the Sun exhibiting strong variations in magnetic activity. These regions were observed with the Michelson Doppler Imager (MDI) on SOHO in its high-resolution mode during several years from solar minimum to maximum. To better understand the systematic uncertainties in fitting the ridges to the high-resolution data, we compare our results with those for the same regions concurrently observed in the MDI full-disc mode. We find that the the properties of high degree p-modes are different in active and quiet regions and that the magnitude of the changes depend oil the activity level.

引用

页码：145 / 148

页数：4

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