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

磁结构中能量传输的重新连接：日地活动的机制

• 批准号: 8812301
• 负责人: Gerard Van Hoven
• 金额: $ 31.34万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-15 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8812301&HistoricalAwards=false
• 关键词: Reconnection; Energy; Transport; Magnetic; Structures

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.

这项研究计划的目的是建立驱动日地活动的磁力主导的能量转换过程背后的物理机制。在开发用于处理剪切磁场中的MHD不稳定性的两个新的计算机程序方面取得了重大进展。这笔拨款将扩大计算机实验的物理精确度和太阳能应用。它的目的是增加更现实的边界，耗散和重力效果，以及一个完整的三维。这些强大的模拟仪器将被用来详细描述耀斑重联的饱和过程、细丝的最终平衡状态及其稳定的磁支撑机制、阿尔芬波加热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了解更广泛的天体物理学中的相关现象，并需要预测它们在日地系统中的后果。