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arXiv 0805.0101astro-ph
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活动区磁结构的多分辨率分析及其与喜马拉雅山的对比。Wilson分类和耀斑活动

Multiresolution analysis of active region magnetic structure and its correlation with the Mt. Wilson classification and flaring activity

J. Ireland, C. A. Young, R. T. J. McAteer, C. Whelan, R. J. Hewett, P. T. Gallagher

摘要:

采用两种不同的多分辨率分析方法,将有源区磁通量的结构分解为不同尺度的浓度。在每个尺度下,找到分离这些相反极性磁通区域的线,这些线被用作磁场梯度图上的掩模,以采样给定尺度大小的相反极性区域之间的局部梯度。它示出的最大值,平均值和标准偏差的磁通量梯度的α,β,β-γ和β-γ-δ活性区的顺序增加,并保持在所有的长度尺度的顺序。这项研究表明,平均而言,山。威尔逊分类编码的概念,活动在所有的长度尺度上的活动区域,而不仅仅是那些长度尺度上的最强的通量梯度被发现。此外,它还表明,在该领域的平均梯度,和平均长度尺度上,它们发生,也增加了相同的顺序。最后,有显着差异的梯度分布,耀斑和非耀斑活动区,这是保持在所有的长度尺度。它还表明,具有大耀斑(GOES类“M”及以上)的活动区域的平均梯度含量大于包含所有耀斑大小的耀斑的活动区域,这种差异也保持在所有的长度尺度。

英文摘要:

Two different multi-resolution analyses are used to decompose the structure of active region magnetic flux into concentrations of different size scales. Lines separating these opposite polarity regions of flux at each size scale are found. These lines are used as a mask on a map of the magnetic field gradient to sample the local gradient between opposite polarity regions of given scale sizes. It is shown that the maximum, average and standard deviation of the magnetic flux gradient for alpha, beta, beta-gamma and beta-gamma-delta active regions increase in the order listed, and that the order is maintained over all length-scales. This study demonstrates that, on average, the Mt. Wilson classification encodes the notion of activity over all length-scales in the active region, and not just those length-scales at which the strongest flux gradients are found. Further, it is also shown that the average gradients in the field, and the average length-scale at which they occur, also increase in the same order. Finally, there are significant differences in the gradient distribution, between flaring and non-flaring active regions, which are maintained over all length-scales. It is also shown that the average gradient content of active regions that have large flares (GOES class 'M' and above) is larger than that for active regions containing flares of all flare sizes; this difference is also maintained at all length-scales.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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