摘要
日冕物质抛射(CMEs)经常被观测到和其他日面活动相伴生,太阳耀斑、日珥爆发、盔状冕流等许多太阳现象,都与它有直接或间接的关系。射电观测是研究CMEs的一种重要的补充工具。多频率的射电成像观测能很好地研究CMEs的初始阶段,而且可以得到关于CMEs触发机制特征的更多信息。概括了CMEs与低频射电的关系,介绍了低频射电的观测仪器,分析了CMEs低频射电所表现出来的特征,考虑了CMEs的初发机制,总结了尚待解决的问题,表明了CMEs研究是基于多类数据和全电磁辐射波段的。
Coronal mass ejections (CMEs) are the most spectacular phenomena of solar activities, and the solar events with the largest spatial scale. CMEs are often accompanied with other solar activities. Many solar phenomena are believed to have direct or indirect correlations with CMEs, such as solar flares, prominence eruption, helmet streamers, high-speed solar winds, coronal and interplanetary shock waves, and so on. Radio observations are an important complementary tool to study CMEs. Multi-frequency radio measurements not only study the initiation of CMEs, but also get more information on triggering mechanism of CMEs. In the present paper, we summarize the relationships between CMEs and low frequency radio bursts with the observational instruments and the radio signatures of CMEs being introduced and analyzed. The initiation mechanism and some open questions are discussed as well. Finally we claim that studies of CMEs must base on the multi-species data in all electromagnetic radiation wavelengthes.
出处
《天文学进展》
CSCD
北大核心
2004年第4期284-295,共12页
Progress In Astronomy
