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空间甚低频太阳II型射电暴研究进展
高冠男, 汪敏, 董亮, 郭少杰
中国科学院云南天文台
摘要:
太阳上最剧烈的爆发现象是耀斑和日冕物质抛射(CME),它们是产生空间灾害性天气的源扰动。太阳射电爆发是太阳爆发的即时响应,II型射电暴是CME驱动的激波在日冕和行星际空间中运动引起电磁波辐射的结果,针对空间探测甚低频II型射电暴的特点,本文首先介绍甚低频II型射电暴的频谱特征以及物理成因;其次,介绍甚低频II型射电暴在空间天气预警预报方面的实用价值。最后,介绍国内外对甚低频II型射电暴的观测设备以及研究方法的最新进展。
关键词:  太阳爆发;耀斑;日冕物质抛射;射电爆发
DOI:
分类号:
基金项目:国家科学基金(青年科学基金,地区科学基金)
Advances in space VLF type II solar radio bursts
Gao Guannan
Yunnan Observatories
Abstract:
Solar flares and coronal mass ejections (CME) are the most violent solar eruptions, which are the original disturbances that produce space disastrous weather. Radio emission is an immediate response to the solar eruption. In particular, the type II solar radio burst is the result of the movement of CME driven shock in the corona and interplanetary space. In this paper, at first, we introduce the spectrum characteristics and physical causes of VLF (Very Low Frequency) type II radio burst, and secondly, the practical value of VLF Type II radio bursts in space weather is proposed. Finally, the recent progress of observation equipments and research methods for VLF Type II radio bursts at home and abroad is introduced.
Key words:  olar eruptions;flare;CME;solar radio bursts