论文标题
快速的磁波波和太阳突出脚的流动：观测和建模
Fast Magnetosonic Waves and Flows in a Solar Prominence Foot: Observations and Modeling
论文作者
论文摘要
我们研究了与Hinode太阳光学望远镜（SOT）高分辨率观测值在Ca〜II和H alpha发射中的高分辨率观测值的最新观察结果，我们认为这是非线性快速磁性波。在这里，我们进一步分析了使用界面区域成像光谱仪（IRIS）Mg〜II缝隙图像的传播波和流的观察结果，此外还有Hinode/sot ca〜i ii图像。我们发现，波浪的典型周期在5-11分钟的范围内，而在天空平面（POS）的波长约为2000 km，而狭窄线的流量的典型速度在〜16-46 km/s的POS中。我们还检测到带有流动材料的线中明显的扭结振荡，并应用冠状动脉学来估计5-17 G范围内的磁场强度。使用2.5d MHD，我们对非线性波和流动的综合作用对观察到的突出材料的动力学的综合效应，并在传播的材料和频率上播放了快速的巨大狂潮，并散发出了巨大的巨大潮流，并在巨大的波浪中播放了巨大的波浪，以及巨大的波浪，并在散发材料中进行了流动的巨大波浪，并散发出了巨大的波浪，并散发出巨大的波浪，并在散发材料中进行了启发。 场地。建模结果与对突出脚的各种波和流的观察结果达到了良好的定性协议，进一步确认了冠状地震学分析，并提高了对突出材料的精细规模动态的理解。
We study recent observations of propagating fluctuations in a prominence foot with Hinode Solar Optical Telescope (SOT) high-resolution observations in Ca~II and H alpha emission which we identify as nonlinear fast magnetosnic waves. Here we analyze further the observations of propagating waves and flows with Interface Region Imaging Spectrograph (IRIS) Mg~II slit jaw images, in addition to Hinode/SOT Ca~II images. We find that the waves have typical periods in the range of 5 - 11 minutes and wavelengths in the plane of the sky (POS) of about 2000 km, while the flows in narrow threads have typical speed in the POS of ~16-46 km/s. We also detect apparent kink oscillations in the threads with flowing material, and apply coronal seismology to estimate the magnetic field strength in the range 5-17 G. Using 2.5D MHD we model the combined effects of nonlinear waves and flows on the observed dynamics of the prominence material, and reproduce the propagating and refracting fast magnetosonic waves, as well as standing kink-mode waves in flowing material along the magnetic field. The modeling results are in good qualitative agreements with the observations of the various waves and flows in the prominence foot, further confirming coronal seismology analysis and improving the understanding of the fine scale dynamics of the prominence material.
