对半影行波和本影振荡关系以及一个伴随CME爆发的快速EUV波的研究

发布时间：2018-11-05 18:07

【摘要】：利用抚仙湖1 m新真空红外太阳望远镜在2013年3月13日H?波段观测的资料,这份时间分辨率为12 s/frame的数据为我们研究太阳黑子3 min本影振荡和半影5 min振荡提供了方便。我们发现行波周期性从本影源区传播出来,随着行波的传播变得越来越离散最终消失在半影外边界。当我们测量行波在不同区域的周期时发现,行波在不同区域的周期表现不同:在本影区域行波的周期为156 s,这是一种典型的3 min振荡。在半影区域行波的周期为312 s,这是一种典型的5 min振荡。通过对数据进行时间切片和行波振荡的峰值和谷值进行统计分析我们肯定5 min的本影行波是从本影区域传出,并且是3分中本影振荡在半影中的继续。利用太阳动力学天文台(Solar Dynamics Observatory,SDO)高时间和高空间分辨率的观测资料,我们研究了发生在2014年1月7日的一个伴随日冕物质抛射(Coronal Mass Ejection,CME)爆发的日冕波。主要目的是研究EUV波的产生机制。通过分析CME爆发与该EUV波发生的时间和位置关系,我们认为这个快速的EUV波很有可能是由CME驱动,通过对时间切片图像的分析,发现这个快速EUV波的速度大于1200 kms-1。我们的分析表明这个快速EUV波与Chen等人2002年提出的模型相符,可以用日冕Moreton波解释。
[Abstract]:Using a new 1 m vacuum infrared solar telescope in Fuxian Lake, March 13, 2013? The data with a temporal resolution of 12 s/frame are convenient for us to study sunspot 3 min intrinsic shadow oscillation and penumbra 5 min oscillation. We find that the traveling waves propagate periodically from the source region of the primary shadow and become more and more discrete and disappear at the outer boundary of penumbra as the traveling waves propagate. When we measure the period of traveling wave in different regions, we find that the period of traveling wave in different region is different: the period of traveling wave in this shadow region is 156s, which is a typical 3 min oscillation. The period of traveling waves in penumbra region is 312 s, which is a typical 5 min oscillation. Through the statistical analysis of the peak and valley values of the time slicing and travelling wave oscillations, we confirm that the traveling waves of 5 min are coming from the umbra region and are the continuation of the intrinsic shading oscillation in the penumbra of 3 minutes. Using the observational data of high temporal and high spatial resolution at the (Solar Dynamics Observatory,SDO Observatory of Solar Dynamics, we have studied a coronal wave accompanied by a coronal mass ejection (Coronal Mass Ejection,CME) burst on January 7, 2014. The main purpose is to study the generation mechanism of EUV waves. By analyzing the relationship between the time and position of the CME burst and the occurrence of the EUV wave, we think that the fast EUV wave is probably driven by CME. By analyzing the time slice images, it is found that the speed of the fast EUV wave is more than 1200 kms-1.. Our analysis shows that this fast EUV wave is consistent with the model proposed by Chen et al in 2002 and can be interpreted by coronal Moreton wave.
【学位授予单位】：云南师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P182

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