摘要
统计分析了云南天文台在２２周峰年期间观测到的米波Ⅲ型射电爆发与光学活动的关系，发现在２３０～３００ＭＨｚ频率范围的米波Ⅲ型爆发与Ｈα耀斑的关系是密切的，Ⅲ型爆发的产生与双极磁结构和复杂型黑子活动区也密切相关。并对统计结果作了讨论。
おhe relation between the type Ⅲ bursts and the optical activities Observed with the High-Resolution Spectrograph at Yunnan Observatory during the 22nd solar maximal years is statistically analysed in this article.It is found that the correlation between the Hα flares and the type Ⅲ bursts within the frequencies from 230 to 300 MHz is 70%, and over 80% of the type Ⅲ bursts have correlation to the bipolar magnetic structure and complex sunspot active regions. Therefore, it can be seen that the production of the type Ⅲ bursts has closed correlation to the bipolar magnetic structure and the complex sunspot active region. From the statistics one can see that Hα flares always result in the type Ⅲ bursts, however some type Ⅲ bursts have no relation to the Hα flares. 20% of the type Ⅲ bursts and the spike events are emerged altogether,and principally at the lower frequency end the spike events are appeared, which develop into the type Ⅲ bursts with the increase in the frequency. Because the type Ⅲ bursts are mainly caused by the sub-relativistic electron beams, the spike events possibly have relation to the electron beams with very high energy, which is in accordance with the coexistence of the tpye Ⅲ bursts and spike events.
出处
《云南天文台台刊》
CSCD
1998年第2期26-32,共7页
Publications of the Yunnan Observatoty
