标题： 网络环振荡与EIS/Hinode 显示英文标题

标题： Network Loop Oscillations with EIS/Hinode

摘要： 我们分析了通过 Hinode/EIS 获得的一系列氦 II 256.32 Å 图像，这些图像是对磁网络中小型磁环的采样。小波分析表明，接近磁环顶点处存在 11 分钟的周期性。我们将这种振荡解释为底层无场空腔的基本声学本征模向上泄漏引起的强迫作用。观测到的磁环长度与该机制预测的值相对应。 显示英文摘要

摘要： We analyze a time sequence of He II 256.32 angstrom images obtained with EIS/Hinode, sampling a small magnetic loop in magnetic network. Wavelet analysis indicates 11-min periodicity close to the loop apex. We interprete this oscillation as forcing through upward leakage by the fundamental acoustic eigenmode of the underlying field-free cavity. The observed loop length corresponds to the value predicted from this mechanism.