摘要
太阳耀斑虽然是在H_a辐射上发现的,但经多年的研究已得知每个耀斑都有重要的高能辐射。高能耀斑情况如何呢?这里介绍高能耀斑的一种即太阳X射线爆发研究的最新进展。主要内容如下:(a)硬X射线爆发的日面经度分布,(b)高能耀斑出现的周期,(c)太阳X射线耀斑分类,(d)耀斑能量释放和传输,(e)耀斑的一般过程。最后,对太阳X射线耀斑研究中的几个问题提出一些看法。
Although solar flares were discovered by their Hα radiation,it has become clear after years of investigation that a flare has important high-energy emission. This paper will introduce the recent progress about the study of solar X-ray burst, one of the high-energy solar flares. The main contents are the following:(a) the longitudinal distribution of the hard X-ray bursts on the sun, (b) the periods of occurrence of high-energy flares observed in several energy ranges, (c) the classification of solar X-ray flares, (d) the energy release and its transport from the energy release site in the corona to the region of X-ray emission in the lower corona and chromosphere, (e) the general process of X-ray flares. Finally, we present several viewpoints for further investigation of solar X-ray flare.
出处
《天文学进展》
CSCD
北大核心
1992年第4期243-252,共10页
Progress In Astronomy
