论文标题
磁通绳爆发期间的浆膜喂养突出形成（PF $^2 $）
Plasmoid-fed prominence formation (PF$^2$) during flux rope eruption
论文作者
论文摘要
我们报告了一种新的，浆液喂养的方案，用于形成爆发的突出性（pf $^2 $），涉及重新连接和凝结。我们在色球到孔子的设置中使用网格自适应的两半维磁流体动力学（MHD）模拟来解决这种浆液式喂养的情况。我们在低电晕中研究了一个预先存在的通量绳（FR），由于灾难而突然爆发，这也驱动了爆发的FR上方的快速冲击。爆发的FR下方形成了当前的纸（CS），并挤入了色球层。一旦Lundquist数字达到$ \ sim 3.5 \ times 10^{4} $，CS中会发生浆液不稳定性。然后，这些新形成的磁岛将CS中的残留色环物质转移到FR中。这些岛屿运输的稠密质量积聚在FR的底部，从而在喷发阶段形成了突出。随着FR的升高，由于热不稳定性，更多的冠状血浆连续凝结成突出。由于PF $^2 $过程带来的精细结构，该模型自然形成了丝线线，该线程在极性反转线上对准。我们以$ 15 \ mathrm {km} $的分辨率的合成视图显示了许多细节，这些细节可能会在未来的高分辨率观察中得到验证。
We report a new, plasmoid-fed scenario for the formation of an eruptive prominence (PF$^2$), involving reconnection and condensation. We use grid-adaptive resistive two-and-a-half-dimensional magnetohydrodynamic (MHD) simulations in a chromosphere-to-corona setup to resolve this plasmoid-fed scenario. We study a pre-existing flux rope (FR) in the low corona that suddenly erupts due to catastrophe, which also drives a fast shock above the erupting FR. A current sheet (CS) forms underneath the erupting FR, with chromospheric matter squeezed into it. The plasmoid instability occurs and multiple magnetic islands appear in the CS once the Lundquist number reaches $\sim 3.5\times 10^{4}$. The remnant chromospheric matter in the CS is then transferred to the FR by these newly formed magnetic islands. The dense and cool mass transported by the islands accumulates in the bottom of the FR, thereby forming a prominence during the eruption phase. More coronal plasma continuously condenses into the prominence due to the thermal instability as the FR rises. Due to the fine structure brought in by the PF$^2$ process, the model naturally forms filament threads, aligned above the polarity inversion line. Synthetic views at our resolution of $15 \mathrm{km}$ show many details that may be verified in future high-resolution observations.
