论文标题
研究由耀斑和喷发激发的冠状环中横向振荡的研究
Study of transverse oscillations in coronal loops excited by flares and eruptions
论文作者
论文摘要
我们介绍了在两个远程和分离（时间和空间上）的活性期间的横向环振荡周期性的测量值。在相同的位置观察到振荡，距环路的可见脚点超过100 mm。提供了几种可能的激发源的证据。经过仔细检查后，我们发现耀斑活动期间的喷发在触发振荡中起着重要作用。我们使用时间距离，快速傅立叶变换和小波技术研究周期性。尽管环路附近的不同激发源和幅度的变化性质，但发现多个振荡的周期性为4-6分钟。
We present measurements of periodicity for transverse loop oscillations during the periods of activity of two remote and separated (both temporally and spatially) flares. The oscillations are observed in the same location more than 100 Mm away from the visible footpoints of the loops. Evidence for several possible excitation sources is presented. After close examination, we find that the eruptions during the flaring activities play an important role in triggering the oscillations. We investigate periodicities using time-distance, Fast Fourier Transform, and Wavelet techniques. Despite different excitation sources in the vicinity of the loops and the changing nature of amplitudes, the periodicity of multiple oscillations is found to be 4 - 6 minutes.
