【摘要】 从2004年10月起,国家天文台怀柔射电频谱仪增加了新的超高分辨率观测模式:在1.10～1.34 GHz频带其时间分辨率为1.25 ms,频率分辨率为4 MHz。报告了3个超高分辨率下观测到的太阳射电精细结构事件,包括射电尖峰辐射、鱼群结构和重叠的精细结构,在射电精细结构之后8～14 min,在米波段都发现射电II型爆发,3个事件的米波II型爆发(示踪着日冕激波)都有相关联的日冕物质抛射(Coronal Mass Ejection,CME)。更多还原

【Abstract】 After Oct.2004,a new observation mode has come into operation for our radio spectrometer(Huairou,Beijing) which has a super-high temporal resolution of 1.25ms in the frequency range of 1.10-1.34GHz.The spectral resolution is 4MHz.We report here three solar radio events observed with the new mode.The images show their spikes,fish groups,and overlapping fine structures(FS).At about 8-14min after those radio FSs,there were associated type II meter-wave bursts(traces of coronal shock waves) detected for all three events.Also detected were CMEs(Coronal Mass Ejections) were associated with these shock waves.更多还原