Solar Flare and Solar-Interplanetary Phenomena Investigated with High Energy Charged Particles

本项目将研究以下两个课题：(1)对22年太阳磁周期内控制高能带电粒子在日球层传播的日地关系和太阳行星际电动力学现象的认识；2)太阳耀斑带电粒子加速传播及其中子发射的物理性质。第一个主题的实验方法是基于使用带电粒子作为日球层磁场的探针。对于第二个主题，PI将通过航天器测量电荷粒子光谱，元素和同位素组成作为从氢到镍的核物种的时间函数来研究太阳耀斑粒子加速。利用高海拔赤道超级监测仪对太阳耀斑中子发射进行了研究。这两个科学目标都需要中子监测器（用于观测相对论能量的原子核）和遍布日球层的航天器上的仪器网络的持续支持。该提案包括对科罗拉多州Climax和Haleakala山的标准中子监测器以及Haleakala山上的18个计数器超级监测器的支持。来自该网络的数据可供科学界使用。提案的其余部分支持针对上述研究领域的分析和理论研究。

This project will examine the following two topics: 1) The understanding of solar-terrestrial relationships and the solar-interplanetary electrodynamical phenomena which control the propagation of energetic charged particles in the heliosphere over a 22-year solar magnetic cycle, and, 2) The physics of solar flare charged particle acceleration propagation and the associated neutron emission from solar flares. The experimental approach to the first topic is based on using charged particles as probes of the heliospheric magnetic fields. For the second topic, the PI will investigate solar flare particles acceleration through spacecraft measurements of the charge particles spectra, elemental and isotopic composition as a function of time for nuclear species from hydrogen to nickel. Studies also are made of solar flare neutron emission using a high altitude, equatorial super monitor. Both scientific objectives require the continuing support of neutron monitors (for nuclei of relativistic energies) and a network of instruments on spacecraft located throughout the heliosphere. This proposal includes support for the standard neutron monitors at Climax, Colorado, and Mt. Haleakala as well as the 18-counter super monitor on Mt. Haleakala. The data from this network are available to the scientific community. The remainder of the proposal supports analytical and theoretical research directed to the research areas described above.