| 太阳微波M型爆发 |
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| 引用本文： | 宁宗军,傅其骏,陆全康.太阳微波M型爆发[J].中国天文和天体物理学报,2000,20(2). |
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| 作者姓名： | 宁宗军 傅其骏 陆全康 |
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| 作者单位： | 中国科学院北京天文台!北京 100012复旦大学物理系 上海 200433，中国科学院北京天文台! 北京 100012，复旦大学物理系! 上海 200433 |
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| 摘 要： | 分析北京天文台１９９８年４月１５日观测到的一个太阳微波Ｍ型爆发事件．Ｍ型爆发实质上是Ⅲ型爆发的一个次型，它由两个连续的Ｕ型爆发所组成，即爆发源在同一个磁环中由于磁镜的作用而连续往返运动后的轨迹，但是在低时间分辨率（０．２ｓ）记录资料中却是 Ｕ型爆发的形态．因此高时间分辨率（８ ｍｓ）的记录资料能更准确地反映Ｍ型爆发源的真实运动情况．对比组成Ｍ型爆发的两个Ｕ型爆发，可以看到，该磁环很可能处在下降的演化阶段．最后讨论该磁环可能的空间分布．
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| 关 键 词： | 太阳射电 M型爆发 磁环 磁镜 |
A Microwave M-Type BurstA Microwave M-Type Burst |
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| NING Zong-jun,FU Qi-jun,LU Quan-kang.A Microwave M-Type BurstA Microwave M-Type Burst[J].Chinese Journal of Astronomy and Astrophysics,2000,20(2). |
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| Authors: | NING Zong-jun FU Qi-jun LU Quan-kang |
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| Abstract: | A microwave M-type burst observed by Beijing Astronomical observatory on 1998 April 15 is studied and analysed in this paper. It is composed of two continuous inverted U-type bursts, the sources moving to and fro within one magnetic arch from reflection by the magnetic mirror around one footpoint of the same magnetic arch. At a low time resolution (0.2s) the records show the U-type morphology while the true motion is revealed by the high time resolution (8ms) records. By comparing the two constituent U-type bursts, we see that the magnetic arch is probably at the descending phase of evolution. Its possible configuration in space is discussed. |
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| Keywords: | solar microwave burst M-type magnetic arch magnetic mirror |
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