Tangential field changes in the great flare of 1990 May 24

被引：44

作者：

Cameron, R ^{[1
]}

Sammis, I ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 525卷 / 01期

基金：

美国国家科学基金会;

关键词：

Sun : flares; Sun : magnetic fields;

D O I：

10.1086/312328

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine the great (solar) flare of 1990 May 24 that occurred in active region NOAA 6063. The Big Bear Solar Observatory videomagnetograph Stokes V and I images show a change in the longitudinal field before and after the flare. Since the flare occurred near the limb, the change reflects a rearrangement of the tangential components of the magnetic field. These observations lack the 180 degrees ambiguity that characterizes vector magnetograms.

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页码：L61 / L64

页数：4

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