SHINE Postdoc: Understanding Solar Electron Bursts Below 1.4keV

PI将研究太阳内部日球层中从太阳到地球的瞬变太阳爆发电子的起源、加速和传播。他还将研究电子爆发的能谱，以更好地了解它们的太阳起源。PI在高级成分探测器(ACE)的数据中发现了375个超热能量低于1.4keV的冲激太阳电子爆发事件，他还指出，Genesis航天器观测到了200多个相同的事件。PI计划识别和分类由ACE和Genesis观测到的这些电子爆发的特征，包括爆发前、爆发中和爆发后电子俯仰角分布的宽度和能谱。超热电子在日光层中观察到的等离子体和高能粒子现象中起着关键作用。对太阳电子爆发的详细分析将增加我们对导致其能谱和束宽变化的物理学的理解，以及我们对超热电子被太阳喷发事件加速的过程以及它们如何传播到地球的知识。因此，对高能电子的研究有助于实现闪耀计划的目标。作为公共宣传，PI将向K-12教师提供志愿者演示，为教师提供想法和课程材料，帮助他们让更多的学生参与空间科学。

The PI will study the origin, acceleration, and propagation of transient solar burst electrons in the inner heliosphere from the Sun to the Earth. He also will investigate the energy spectra of electron bursts to better understand their solar origin. The PI has identified 375 impulsive solar electron burst events at suprathermal energies below 1.4 keV in the Advanced Composition Explorer (ACE) data, and he also notes that the Genesis spacecraft observed over 200 of these same events. The PI intends to identify and catalog characteristic features of these electron bursts as seen by ACE and Genesis, to include width of the electron pitch-angle distribution and energy spectrum before, during, and after the bursts.Suprathermal electrons play a key role in the plasma and energetic particle phenomena observed in the heliosphere. Detailed analysis of solar electron bursts will increase our understanding of the physics that causes variability in their energy spectrum and beam width, as well as our knowledge of the processes by which suprathermal electrons are accelerated by solar eruptive events and how they propagate to the Earth. The study of energetic electrons thus contributes to SHINE program goals. As public outreach, the PI will provide volunteer presentations to K-12 instructors, providing teachers with ideas and curriculum material that will help them involve more students in space science.