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Updated: Jun 12, 2025

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需要近地多重航天器的球测量和探索任务,以调查近地球中的行星间结构和过渡物
Noé Lugaz1, Christina O Lee2, Nada Al-Haddad1
1Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH 03824 USA.
概括
多航天器任务对于了解太阳风结构和地球附近的能量粒子至关重要. 拟议的星际结构和过渡物 (MIIST) 调查任务旨在填补改善空间天气预报的关键知识差距.
科学领域:
- 太空物理学 太空物理学
- 太阳物理 太阳物理
- 空间等离子体物理学
背景情况:
- 几十年来,单一航天器数据揭示了了解太阳风现象的差距.
- 目前的日球和行星任务缺乏1AU附近的必要的多航天器分辨率.
- 对于CME,SIR,HSS和ESP事件等关键现象,需要在0.05-0.2AU的距离上同时进行测量.
研究的目的:
- 为了确定太阳风结构的时空变化,在地球附近的星际空间中的短暂物和能量粒子.
- 提升基础知识,以改善利用现场数据进行空间天气预报.
- 在一个小型探险家任务的限制下,解决行星间结构和瞬态物体的关键知识差距.
主要方法:
- 提出探测行星间结构和过渡物 (MIIST) 任务,这是一个小型的多航天器任务概念.
- 定义MIIST的科学要求,有效载荷和操作概念.
- 利用几十年的日球和行星任务的现有知识.
主要成果:
- 确定了在内部日球中在特定距离 (0.05-0.2 AU) 进行多航天器测量的关键需求.
- 概述了一个任务概念 (MIIST),旨在满足这些观测要求.
- 在美国宇航局太空物理学小型探险者计划限制范围内建立了科学理由和任务参数.
结论:
- MIIST是一个可行的概念,可以弥补我们对太阳风和能量粒子的理解的现有差距.
- 该任务将为推进太空天气预测提供关键的现场数据.
- 解决这些差距对于理解近地行星间现象至关重要.
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