2.63.8GHZ太阳微波爆发中的精细结构  

THE STUDY OF THE FINE STRUCTURES SUPERIMPOSED ON SOLAR BURSTS IN 2.6 3.8GHz FREQUENCY BAND

作　　者：宁宗军[1] 傅其骏[1] 陆全康[2] 

机构地区：[1]中国科学院北京天文台,北京100012 [2]复旦大学物理系,上海200433

出　　处：《紫金山天文台台刊》1999年第2期193-197,共5页

摘　　要：微波Ⅲ型爆发和微波尖峰辐射是太阳微波爆发中两个主要的精细结构，由于微波段比长波段的情况更复杂，单从形态上很难区分。１９９４ 年Ｉｓｌｉｋｅ ＆ Ｂｅｎｚ 给出１３ＧＨｚ 频带上的各类爆发分类定义，本文参考了其中关于微波Ⅲ型爆发和微波尖峰辐射的分类，分析北京天文台２ ．６３ ．８ＧＨｚ 频带上观测到的微波尖峰辐射的精细结构，发现该定义有局限性，重新定义了本波段上的微波Ⅲ型爆发和微波尖峰辐射。There are two leading fine structures of microwave solar bursts.They are the microwave type Ⅲ bursts (MⅢ) and the microwave milli second spikes (MMS).It is more complicated in the fine structures in meter band.In 1994,lslike and Benz gave a defination about the various bursts in the frequency band of 1 3GHz.According to this defination,this article analyses the fine structures with 8ms observed by Beijing Astronomical Observatory in the band 2.6 3.8GHz,and discovers the limitations of that defination about the MⅢ and MMS.So we redefine the MⅢ and MMS in this band,and discuss the relationship between the dennation and the time resolution of the instrument.

关 键 词：微波爆发 精细结构 太阳射电爆发 

分 类 号：P163[天文地球—天文学]