Collaborative Research: SHINE: Characteristics of Solar Energetic Particle Events Resulting from Filament Eruptions

了解太阳高能粒子(SEP)加速的细节对于准确预测空间天气和对敏感的天基资产的潜在影响至关重要。这个为期3年的SIRE项目旨在研究与太阳暗条喷发有关的SEP事件。目标是分离和研究在CME驱动的激波中加速的SEP，并将耀斑物质贡献降至最低。这项工作扩展了其他研究人员的最新结果，使用了更多的仪器来覆盖更广泛的能量范围，并扩大了分析范围。该方法涉及成熟的光谱和元素组成数据分析技术。科学成果将通过发表的文章、科学讲座和个人交流广泛地传播给科学界和空间天气预报界。此外，将通过ACE和STEREO科学中心的公共网页提供项目成果和相关数据集。这三个项目团队在发表出版物、参加各种研讨会(例如，SINE)和参加科学会议方面有着良好的记录(通常担任领导角色)。小组组长和协理都是代表性不足的少数群体，本科生的参与资金也包括在内。该项目将促进强有力的国际合作，以促进美国和世界范围内的空间气象研究。这项为期3年的SHARE项目研究计划包括四项主要任务。第一项任务是检查以前发现的事件的重离子特征。光谱形状随粒子种类的变化揭示了加速激波的特征，而成分则提供了有关SEP种子种群的重要线索。第二项任务是通过使用ACE和STEREO上更灵敏的SEP传感器来研究与灯丝喷发相关的较小的SEP事件。仅包括立体声数据就有可能增加适合研究的事件的数量，并与近地航天器结合起来，可以作为经度的函数来检查SEP特征。第三项任务是通过将单航天器事件和多航天器事件的粒子释放时间的计算与相应的太阳信号的计时结合起来，对主要加速区定义更强的约束。第四项任务是详细研究没有相关SEP事件的类似细丝喷发事件，以确定对SEP产生至关重要的特定特征。该项目与NSF的SIRE计划直接相关，因为它将提供有关太阳喷发事件期间SEP加速和运输的重要知识。这些知识对于准确模拟和预测从太阳表面到地球乃至更远的空间天气状况至关重要。该项目的研究和EPO议程支持AGS部门在发现、学习、多样性和跨学科研究方面的战略目标。

Understanding the details of solar energetic particle (SEP) acceleration is critical for accurate predictions of space weather and potential impacts on sensitive space-based assets. This 3-year SHINE project is aimed at studying SEP events associated with filament eruptions on the Sun. The goal is to isolate and investigate SEPs accelerated at CME-driven shocks with minimal flare material contributions. The work expands on other researchers' recent results by using more instruments to cover a broader energy range and extend the analysis. The methodology involves spectral and elemental composition data analysis techniques that are well established. The dissemination of the scientific results will be made broadly to the scientific and space weather prediction communities through published articles, scientific talks, and personal communications. In addition, project results and relevant data sets will be made available via the public web pages of the ACE and STEREO Science Centers. The three project teams have excellent track record of publications, participating (often in leadership roles) in various workshops (e.g., SHINE), and attending scientific conferences. Both the team leader and a Co-PIs are under-represented minorities and funding is included for the involvement of an undergraduate student. The project will promote strong international collaborations for the benefit of advancing space weather research both in the USA and worldwide. The research plan of this 3-year SHINE project includes four main tasks. The first task is to examine the characteristics of heavy ions for previously identified events. The spectral shape variation as a function of particle species reveals characteristics of the accelerating shock, while the composition provides important clues regarding the SEP seed population. The second task is to study smaller SEP events associated with filament eruptions by using the more sensitive SEP sensors onboard ACE and STEREO. The inclusion of STEREO data alone has the potential to increase the number of events suitable for study and, in combination with near-Earth spacecraft, allows the examination of SEP characteristics as a function of longitude. The third task is to define stronger constrains on the primary acceleration region by combining calculations of the particle-release times, for both for single-and multiple-spacecraft events, with timing of the corresponding solar signatures. The fourth task is to study in detail similar filament eruption events without associated SEP events in order to identify specific features that are key to SEP generation. The project is directly relevant to the NSF's SHINE program, because it will provide important knowledge about the acceleration and transport of SEPs during solar eruptive events. Such knowledge is critical for accurate modeling and prediction of space weather conditions from the solar surface to the Earth and beyond. The research and EPO agenda of this project supports the Strategic Goals of the AGS Division in discovery, learning, diversity, and interdisciplinary research.