Coronal mass ejections and associated X-ray flare durations
Coronal mass ejections and associated X-ray flare durations
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DOI：
10.1086/167869
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发表时间：
1989-09
期刊：
影响因子：
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通讯作者：
S. Kahler;N. Sheeley;M. Liggett
中科院分区：
文献类型：
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作者：
S. Kahler;N. Sheeley;M. Liggett
研究发现，22%的M1或更大的脉冲软x射线耀斑样本与太阳风日冕仪观测到的日冕物质抛射（cme）有关。这些耀斑比类似的没有日冕物质抛射的脉冲耀斑更有能量，而且相关的日冕物质抛射的角宽度较窄（5-40度）。对所有与M1或更大x射线耀斑相关的日冕物质抛射的调查显示，耀斑持续时间与CME角宽度之间存在良好的相关性。冲动性的、与日冕物质抛射有关的耀斑的h - α特征表明，它们不是被认为与日冕物质抛射有关的动态耀斑或爆发耀斑，而是受限耀斑。h - α耀斑的位置既不在CME腿的中心。日冕物质抛射和伴随的耀斑在尺寸尺度上的差异使得日冕物质抛射宽度和x射线耀斑持续时间之间的相关性的基础没有得到解决。参29。
It is found that 22 percent of a sample of M1 or greater impulsive soft X-ray flares were associated with coronal mass ejections (CMEs) observed in the Solwind coronagraph. These flares were more energetic than similar impulsive flares without CMEs, and the associated CMEs were narrow (5-40 deg) in angular width. A survey of all CMEs associated with M1 or greater X-ray flares reveals a good correlation between flare duration CME angular width. The H-alpha characteristics of impulsive, CME-associated flares suggest that they are not the dynamic or eruptive flares presumed to be associated with CMEs, but rather, are confined flares. The H-alpha flare locations are neither centered under the CME legs. The disparity in size scales between the CMEs and their associated flares leaves the basis of the correlation between CME width and X-ray flare duration unresolved. 29 refs.