Solar Flare Imaging Spectroscopy

太阳表层的特点是许多能量现象遵循一个11年的周期，即所谓的太阳黑子周期。这个周期的下一个高峰将发生在1991年。太阳黑子和能量爆发的数量在1989年已经稳步增加，并在两年后达到最大值。这种周期中能量最高的现象被称为“耀斑”。这些区域的特征是强磁场的局部积聚、与这些磁场相关的能量的突然释放、带电粒子的加速和等离子体的加热。首席研究员建议开展一个观测项目，目的是更好地了解太阳耀斑的起源和时间发展。特别是，他将确定高能粒子加速度在太阳大气中的时空分布及其对磁场结构和演化的影响。此外，他还将研究耀斑发展过程中的磁重联、冲击以及能量和动量输运。将使用新的和现有的数据。

The solar surface layers are characterized by numerous energetic phenomena that follow an eleven-year cycle, the so-called sunspot cycle. The next maximum in this cycle will occur in 1991. The number of sunspots and energetic erruptions is now, in 1989, already steadily increasing and building up to the maximum two years hence. The most energetic phenomena of such a cycle are called "flares." They are regions characterized by the localized buildup of strong magnetic fields, the sudden release of energy associated with these fields, acceleration of charged particles, and heating of plasma. The Principal Investigator proposes to carry out an observational project with the goal of understanding better the origin and temporal development of solar flares. In particular, he will determine the spatial and temporal distribution of energetic particle acceleration in the solar atmosphere and their effects on the structure and evolution of magnetic fields. In addition, he will study magnetic reconnection, shocks, and energy and momentum transport during the course of flare development. New and existing data will be used.