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British Antarctic Survey Consolidated Grant

英国南极调查局综合赠款

基本信息

批准号：
ST/W00111X/1
负责人：
Sarah Glauert
金额：
$ 48.66万
依托单位：
British Antarctic Survey
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2022
资助国家：
英国
起止时间：
2022 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FW00111X%2F1
关键词：
British Antarctic Survey Consolidated Grant

项目摘要

Within the magnetic fields of planets that extend into space, energetic charged particles are trapped creating regions that are hazardous to spacecraft and humans. The way these radiation belts grow and decline is a major focus of scientific endeavour in space science. Understanding the fundamental principles of how these dangerous regions in space behave is vital for predicting the level of hazard they pose to spacecraft.In the last three years a new and very rapid mechanism for transporting electrons towards the planet has been discovered at Saturn. This is a significant change from the decades old theory that has been assumed to underlie the motion of electrons towards or away from the planet. The goal of this project is to test the effects of this new mechanism on the behaviour of Saturn's radiation belt in conjunction with what we have also discovered in the past few years about the effects of waves on energetic electrons at Saturn.The results will show us how the unique conditions in Saturn's space environment combine local acceleration and loss processes with this new mode of transporting electrons towards the planet. This will also help to determine whether resonant wave acceleration and loss of electrons is a universal process that is more widely applicable to the Sun and other astrophysical objects such as the increasing number of planets discovered outside our Solar System.This project will aid with setting new research goals for future spacecraft missions to the planets and investigations of planets beyond our Solar system, provide research training for young scientists, develop computer models that will be of use to the space industry in planning future missions to the outer planets, and leave a legacy of understanding that will last long after the completion of the project.

在延伸到太空的行星的磁场中，高能带电粒子被困住，形成了对航天器和人类有害的区域。这些辐射带的消长方式是空间科学中科学努力的一个主要焦点。了解这些危险区域在太空中的行为方式的基本原理，对于预测它们对航天器构成的危险程度至关重要。在过去的三年里，土星上发现了一种向土星传输电子的新的、非常快速的机制。与几十年前的理论相比，这是一个重大变化，该理论被认为是电子朝向或远离行星运动的基础。这个项目的目标是测试这一新机制对土星辐射带行为的影响，以及我们在过去几年中也发现的关于波对土星高能电子的影响。结果将向我们展示土星空间环境中的独特条件如何将局部加速和损失过程与这种向行星传输电子的新模式相结合。这也将有助于确定共振波加速和电子损失是否是更广泛地适用于太阳和其他天体物理物体的普遍过程，例如太阳系外发现的越来越多的行星。这一项目将有助于为未来的航天器任务设定新的研究目标，并调查太阳系外的行星，为年轻科学家提供研究培训，开发将用于航天工业的计算机模型，用于规划未来的外行星飞行任务，并留下将在项目完成后很长一段时间内持续的谅解遗产。