论文标题
持续的快速扭结磁流体动力波在静止的突出中检测到
Persistent fast kink magnetohydrodynamic waves detected in a quiescent prominence
论文作者
论文摘要
血浆线的小尺度，环状横向运动通常在太阳突出体中看到，这些突出通常被解释为磁性水力动力学（MHD）波。在这里，我们观察到静止的突出中的小规模衰减横向振荡，它们似乎无处不在。发射强度的振荡周期和视线多普勒偏移的代理是位移振荡的一半。此功能与通量管中的快速扭结模式波很好地吻合。所有移动线在空间上横向振荡，并且在整个可见段中没有显着阻尼，表明快速的扭结MHD波持续使用，并且持续的消散能量被传递到静态表层中的环境等离子体。但是，我们的计算表明，仅快速扭结MHD波的能量不能支持安静的太阳上的冠状加热。
Small-scale, cyclic, transverse motions of plasma threads are usually seen in solar prominences, which are often interpreted as magnetohydrodynamic (MHD) waves. Here, we observed small-scale decayless transverse oscillations in a quiescent prominence, and they appear to be omnipresent. The oscillatory periods of the emission intensity and a proxy for the line-of-sight Doppler shift are about half period of the displacement oscillations. This feature agrees well with the fast kink-mode waves in a flux tube. All the moving threads oscillate transversally spatially in phase and exhibit no significant damping throughout the visible segments, indicating that the fast kink MHD waves are persistently powered and ongoing dissipating energy is transferred to the ambient plasma in the quiet corona. However, our calculations suggest that the energy taken by the fast kink MHD waves alone can not support the coronal heating on the quiet Sun.
