SHINE: Understanding the Three-Part Structure of Coronal Mass Ejections Combining Data Analyses and Numerical Simulations

SHINE：结合数据分析和数值模拟了解日冕物质抛射的三部分结构

• 批准号: 2301382
• 负责人: Bin Zhuang
• 金额: $ 33.76万
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-04-01 至 2026-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2301382&HistoricalAwards=false
• 关键词: SHINE; Understanding; Three; Part; Structure

Coronal mass ejections (CMEs) are powerful events that send plasma from the Sun throughout the solar system. They create space weather at Earth, which impacts human technology, particularly in space. This project will improve our understanding of the structure of CMEs through numerical simulations and analysis of observations. The work supports an early career scientist. The research team will participate in public outreach efforts geared towards the general public, students, and teachers.The project is a comprehensive analysis of the three-part structure of CMEs. It will combine multiple observations from NSF, NASA, and NOAA and numerical simulations. Three important science questions are addressed in order to better understand the CME structure and gain a general knowledge of the physical properties of the CME substructures: (1.) What is the CME structure observed in white-light coronagraphic images and where are the magnetic flux rope (MFR) and filament observed in coronagraphs? (a) In white-light coronagraphic images, does the bright core consist of the filament material, MFR structure, or both, and where is the bright core within the whole CME eruptive structure? (b) Are the observations of the filament and MFR in the low corona in EUV images consistent with the bright core and/or dark cavity in the middle and high corona in white-light images? (2.) Where is the CME trailing edge? Which signatures can be best used to identify the CME trailing edge in remote and in-situ observations and where is the CME trailing edge in white-light coronagraphic images? (3.) Can a consistent CME structure be identified in remote observation and in in-situ measurements? (a) Are the kinematics and evolution of the CME substructures (including the trailing edge) observed remotely consistent with those measured in situ? (b) Can the in-situ measurements be used to track back the CME substructures to the corona?This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

日冕物质抛射（CME）是一种强大的事件，它将等离子体从太阳发送到整个太阳系。它们在地球上创造空间天气，影响人类技术，特别是在太空中。该项目将通过数值模拟和观测分析来提高我们对CME结构的理解。这项工作支持一个早期的职业科学家。研究小组将参与面向公众、学生和教师的公共外展工作。该项目是对CME三部分结构的综合分析。它将联合收割机从美国国家科学基金会，美国宇航局和美国国家海洋和大气管理局的多个观测和数值模拟。为了更好地理解CME结构和获得CME子结构的物理性质的一般知识，解决了三个重要的科学问题：（1）。在白光日冕照相中观察到的日冕物质抛射结构是什么？在日冕照相中观察到的磁通绳（MFR）和灯丝在哪里？(a)在白光日冕照片中，明亮的核心是由灯丝物质、MFR结构还是两者组成？明亮的核心在整个CME喷发结构中的位置在哪里？(b)EUV图像中低日冕中的灯丝和MFR的观测结果是否与白光图像中中高日冕中的亮芯和/或暗腔一致？（2.）CME的后缘在哪里？在远程和现场观测中，哪些特征最适合用来识别日冕物质抛射的后缘？在白光日冕照相图像中日冕物质抛射的后缘在哪里？（3.）一个一致的日冕物质抛射结构能在远距离观测和现场测量中被识别吗？(a)远程观测到的日冕物质抛射亚结构（包括后缘）的运动学和演化与现场测量的一致吗？(b)现场测量能否用于追踪日冕物质抛射的子结构？该奖项反映了NSF的法定使命，并被认为是值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估的支持。

项目成果

Evolution of the Radial Size and Expansion of Coronal Mass Ejections Investigated by Combining Remote and In Situ Observations

• DOI: 10.3847/1538-4357/acd847
• 发表时间: 2023-05
• 期刊: The Astrophysical Journal
• 作者: B. Zhuang;N. Lugaz;N. Al-Haddad;R. Winslow;C. Scolini;C. Farrugia;A. Galvin

Investigating the Magnetic Structure of Interplanetary Coronal Mass Ejections Using Simultaneous Multispacecraft In Situ Measurements

使用同步多航天器原位测量研究行星际日冕物质抛射的磁结构

• DOI: 10.3847/1538-4357/acef16
• 发表时间: 2023
• 期刊: The Astrophysical Journal
• 作者: Regnault, F.;Al-Haddad, N.;Lugaz, N.;Farrugia, C. J.;Yu, W.;Davies, E. E.;Galvin, A. B.;Zhuang, B.
• 通讯作者: Zhuang, B.

Combining STEREO heliospheric imagers and Solar Orbiter to investigate the evolution of the 2022 March 10 CME

结合 STEREO 日光层成像仪和太阳轨道飞行器来研究 2022 年 3 月 10 日日冕物质抛射的演变

• DOI: 10.1051/0004-6361/202347561
• 发表时间: 2024
• 期刊: Astronomy & Astrophysics
• 影响因子: 6.5
• 作者: Zhuang, B.;Lugaz, N.;Al-Haddad, N.;Scolini, C.;Farrugia, C. J.;Regnault, F.;Davies, E. E.;Yu, W.;Winslow, R. M.;Galvin, A. B.
• 通讯作者: Galvin, A. B.