Activity associated with the solar origin of coronal mass ejections

Activity associated with the solar origin of coronal mass ejections
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DOI:
10.1007/bf00214170
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发表时间:
1987
期刊:
影响因子:
2.8
通讯作者:
D. Webb;A. Hundhausen
D. Webb;A. Hundhausen
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
D. Webb;A. Hundhausen

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本文将1980年用太阳极大期使命(SMM)卫星上的HAO日冕仪/偏振计观测到的太阳日冕物质抛射(CME)与可能与抛射有关的其他形式的太阳活动进行了比较。太阳现象检查和使用的关联方法是故意模仿Munroet等人。(1979)对天空实验室日冕观测到的物质抛射进行了分析,以便于对这两个时期进行比较。结果表明,在太阳活动极小期和极大期附近,CME的关联类型和关联程度相似。对于这两个时代,大多数CME与协会有关联的爆发性和所有类型的活动的协会的比例是相似的。我们还发现SMM CME和X射线长持续时间事件(LDE)之间的关联百分比很高,与Skylab的结果一致。我们的结论是,大多数日冕物质抛射是日珥及其上覆日冕结构的不稳定和喷发的结果,或者是能够支撑日珥的磁结构的结果。
Solar coronal mass ejections (CMEs) observed in 1980 with the HAO Coronagraph/Polarimeter on the Solar Maximum Mission (SMM) satellite are compared with other forms of solar activity that might be physically related to the ejections. The solar phenomena checked and the method of association used were intentionally patterned after those of Munroet al.'s (1979) analysis of mass ejections observed with the Skylab coronagraph to facilitate comparison of the two epochs. Comparison of the results reveals that the types and degree of CME associations are similar near solar activity minimum and at maximum. For both epochs, most CMEs with associations had associated eruptive prominences and the proportions of association of all types of activity were similar. We also found a high percentage of association between SMM CMEs and X-ray long duration events (LDEs), in agreement with Skylab results. We conclude that most CMEs are the result of the destabilization and eruption of a prominence and its overlying coronal structure, or of a magnetic structure capable of supporting a prominence.