The Elusive Sources of Solar Energetic Particles

太阳能粒子的难以捉摸的来源

• 批准号: ST/X003787/1
• 负责人: Stephanie Yardley
• 金额: $ 80.3万
• 依托单位: Northumbria University
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FX003787%2F1
• 关键词: Elusive; Sources; Solar; Energetic; Particles

Our Sun is vital for our existence; it is a source of immense power that allows life to exist and thrive. The Sun's eruptive activity, which is driven by magnetic fields, causes hazardous space weather conditions at Earth. Solar eruptions can accelerate energetic particles consisting of electrons, protons and ions that can cause significant damage to satellite electronics and pose a severe radiation risk for crewed spaceflight. Space weather directly impacts our everyday lives due to our ever-growing levels of space exploration, space tourism and dependence on modern technology. The UK Met Office now provides space weather forecasts with space weather appearing on the UK's National Risk Register.Investigating the origin and acceleration of solar energetic particles remains at the forefront of solar heliospheric research and it is the focus of the recently launched Solar Orbiter and Parker Solar Probe missions. It is an exciting time to work on this project due to the launch of new space missions, the existence of decade-long Solar Dynamics Observatory datasets covering the entire previous solar cycle, the development of new plasma composition techniques, and the increased activity during the new solar cycle. During this fellowship, I will combine magnetic field observations, magnetic models and plasma measurements in space with a novel composition analysis technique to understand the origin of solar energetic particles. I will use magnetic field parameters and eruption characteristics along with enhancements in plasma composition to identify source regions of solar energetic particles in advance as required by space weather forecasters.

我们的太阳对我们的生存至关重要；它是生命存在和繁荣的巨大力量的来源。由磁场驱动的太阳喷发活动在地球上造成了危险的太空天气条件。太阳喷发可以加速由电子、质子和离子组成的高能粒子，这可能会对卫星电子设备造成重大破坏，并对载人航天飞行构成严重的辐射风险。由于我们的空间探索、空间旅游和对现代技术的依赖程度不断提高，空间天气直接影响到我们的日常生活。英国气象局现在提供空间天气预报，空间天气出现在英国的国家风险登记册上。调查太阳高能粒子的起源和加速仍然是太阳日球层研究的前沿，也是最近发射的太阳轨道器和帕克太阳探测器任务的重点。由于新的空间飞行任务的发射、涵盖整个前一个太阳周期的长达十年的太阳动力学观测站数据集的存在、新的等离子体合成技术的发展以及新太阳周期期间活动的增加，开展这一项目是一个令人兴奋的时刻。在这次联谊会期间，我将把空间磁场观测、磁场模型和等离子体测量与一种新的成分分析技术结合起来，以了解太阳高能粒子的起源。我将根据空间天气预报员的要求，利用磁场参数和喷发特征以及等离子体成分的增强来提前确定太阳高能粒子的源区。