由多频射电爆发探讨太阳白光耀斑的起源问题  

An Approach to the Origin of the Solar White-Light Flare by Radio Bursts at Multi-Band

作　　者：谢瑞祥[1] 汪敏[1] 

机构地区：[1]中国科学院北京天文台

出　　处：《云南天文台台刊》1999年第3期23-32,共10页Publications of the Yunnan Observatoty

摘　　要：从射电运动Ⅳ型爆发的特征和多频射电爆发开始时序的分析可以看出这个伴生的白光耀斑（ Ｗ Ｌ Ｆ） 和射电爆发同是由低日冕的加速电子激活，可能通过非热电子沉降能量于色球层， 产生了色球层压缩波， 又经二步能量传输过程在上光球层导致 Ｗ Ｌ Ｆ。通过对共生事件的分析， 并与已知的二类 Ｗ Ｌ Ｆ的观测特征作了比较， 提出该 Ｗ Ｌ Ｆ 可能属于二类的混合型， 并提出 Ｗ Ｌ ＦThe analyses of characteristics of moving type Ⅳ dm burst and the starting sequence of radio bursts at multi-band may indicate that this accompanied white-light flare (WLF) and the radio bursts are activated by the same accelerated electrons from lower corona. The condensation waves in chromasphere are produced by the precipitated energy of nonthermal electrons in chromasphere. The WLF is formed on the upper photosphere by the energy transport process in two steps.A mixture of both types of WLFs is approached through the analyses of the accompanied events and the observational characteristics of the known two types. The requirements of radio emissions for WLF are suggested.

关 键 词：太阳 射电爆发 白光耀斑 耀斑 

分 类 号：P163[天文地球—天文学] P182.52