论文标题
随附的太阳耀斑中的间歇性能量释放激发了经常性窄的准周期快速传播波列
Recurrent narrow quasi-periodic fast-propagating wave trains excited by the intermittent energy release in the accompanying solar flare
论文作者
论文摘要
关于准周期快速传播（QFP）波列的驱动机制，存在两个主要的竞争物理解释：与耀斑的能量释放相关或归因于波导分散体。使用太阳能动力学天文台（SDO）大气成像组件（AIA）171 A图像，我们研究了一系列由沿循环系统在2011年11月11日伴随的flare期间沿循环系统传播的一系列QFP波序列。波列的伴随着伴随的火车的高度相关性，与伴随的氟射击的能源释放相关。测量表明，波列相位速度几乎与其组速度一致，值约为1000 km S-1，表明波列不应分散波。波列的周期与火雷释放的X射线排放中的振荡信号的周期相同。因此，我们建议QFP波列火车很可能是由耀斑而不是通过分散触发的。我们通过QFP波研究了地震学应用，然后获得了波导的磁场强度约为10个高斯。同时，我们还估计波列的能量通量约为1.2x105 ERG CM-2 S-1。
About the driven mechanisms of the quasi-periodic fast-propagating (QFP) wave trains, there exist two dominant competing physical explanations: associated with the flaring energy release or attributed to the waveguide dispersion. Employing Solar Dynamics Observatory (SDO) Atmospheric Imaging Assembly (AIA) 171 A images, we investigated a series of QFP wave trains composed of multiple wavefronts propagating along a loop system during the accompanying flare on 2011 November 11. The wave trains showed a high correlation in start time with the energy release of the accompanying flare. Measurements show that the wave trains phase speed is almost consistent with its group speed with a value of about 1000 km s-1, indicating that the wave trains should not be dispersed waves. The period of the wave trains was the same as that of the oscillatory signal in X ray emissions released by the flare. Thus we propose that the QFP wave trains were most likely triggered by the flare rather than by dispersion. We investigated the seismological application with the QFP waves and then obtained that the magnetic field strength of the waveguide was about 10 Gauss. Meanwhile, we also estimated that the energy flux of the wave trains was about 1.2X105 erg cm-2 s-1.
