Reconnection of Energy Transport in Magnetic Structures: Mechanisms of Solar-Terrestrial Activity

这项研究计划的目的是建立驱动日地活动的磁主导能量转换过程的物理机制。在开发两种新的处理剪切磁场中MHD不稳定性的计算机代码方面取得了重大进展。这笔拨款将扩展计算机实验的物理精度和太阳能应用。它的目的是增加更现实的边界，耗散和引力效应，和一个完整的第三维度。这些强大的模拟仪器将用于详细描述耀斑重连的饱和过程，灯丝的最终平衡状态及其稳定的磁支撑机制，阿尔芬波加热的效率以及日冕物质抛射的加速动力学。这些研究的动机是希望在更广阔的天体物理学宇宙中了解相关现象，并需要预测它们在日地系统中的后果。

The aim of this research program is the establishment of the physical mechanisms underlying the magnetically dominated energy- conversion processes that drive solar-terrestrial activity. Significant progress in developing two new computer codes for the treatment of MHD instabilities in sheared magnetic fields has been made. This grant will extend both the physical accuracy and solar applications of the computer experiments. It is intended to add more realistic boundaries, dissipative and gravitational effects, and a full third dimension. These powerful simulation instruments will be used to detail the saturation process for flare reconnection, the final equilibrium state of a filament and its stable magnetic-support mechanism, the efficiency of Alfven wave heating, and the acceleration dynamics of coronal mass ejections. These studies are motivated by the desire to understand related phenomena in the wider universe of astrophysics, and by the need to predict their consequences in the solar-terrestrial system.