论文标题
磁重新连接引起的太阳光球喷射样现象的数值模拟
Numerical simulation of solar photospheric jet-like phenomena caused by magnetic reconnection
论文作者
论文摘要
在太阳能电晕和色球中，已经观察到脚步中有明亮循环的射流现象，称为海葵喷射。这些喷气机是由于磁重新连接而形成的，并且从磁性水力动力学（MHD）的规模普遍性中形成，可以预期，即使在太阳光球中也存在海葵喷气机。但是，不一定明显是由于磁能不主导的光球中的磁重新连接而产生的喷气机可以产生。此外，来自光电喷头产生的MHD波可能有助于色球加热和曲调形成。但是，该假设尚未得到彻底研究。在这项研究中，我们进行了3D MHD模拟，包括带有太阳光球参数的重力，以研究太阳光球中的海葵喷射。在模拟中，通过太阳光球中的磁重新连接诱导喷气样结构。我们确定这些射流状结构是由重新连接形成的慢速冲击引起的，并在背景磁场的方向上大致传播。我们还建议来自喷气样结构的MHD波会影响局部大气加热和曲调形成。
Jet phenomena with a bright loop in their footpoint, called anemone jets, have been observed in the solar corona and chromosphere. These jets are formed as a consequence of magnetic reconnection, and from the scale universality of magnetohydrodynamics (MHD), it can be expected that anemone jets exist even in the solar photosphere. However, it is not necessarily apparent that jets can be generated as a result of magnetic reconnection in the photosphere, where the magnetic energy is not dominant. Furthermore, MHD waves generated from the photospheric jets could contribute to chromospheric heating and spicule formation; however, this hypothesis has not yet been thoroughly investigated. In this study, we perform 3D MHD simulation including gravity with the solar photospheric parameter to investigate anemone jets in the solar photosphere. In the simulation, jet-like structures were induced by magnetic reconnection in the solar photosphere. We determined that these jet-like structures were caused by slow shocks formed by the reconnection and were propagated approximately in the direction of the background magnetic field. We also suggested that MHD waves from the jet-like structures could influence local atmospheric heating and spicule formation.
