OBSERVATIONS OF VECTOR MAGNETIC-FIELDS IN FLARING ACTIVE REGIONS

被引：58

作者：

CHEN, JM ^{[1
]}

WANG, HM ^{[1
]}

ZIRIN, H ^{[1
]}

AI, GX ^{[1
]}

机构：

[1] CHINESE ACAD SCI,BEIJING ASTRON OBSERV,BEIJING 100080,PEOPLES R CHINA

来源：

SOLAR PHYSICS | 1994年 / 154卷 / 02期

关键词：

D O I：

10.1007/BF00681099

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present vector magnetograph data of 6 active regions, all of which produced major flares. Of the 20 M-class (or above) flares, 7 satisfy the flare conditions prescribed by Hagyard (high shear and strong transverse fields), Strong photospheric shear, however, is not necessarily a condition for a flare. We find an increase in the shear for two flares, a 6-deg shear increase along the neutral Line after a X-2 flare and a 13-deg increase after a M-1.9 flare. For other flares, we did not detect substantial shear changes.

引用

页码：261 / 273

页数：13

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[2]

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