Advancing Spicule Physics with High Resolution Data: DKIST First Science

利用高分辨率数据推进针状物理：DKIST First Science

• 批准号: 2108235
• 负责人: Wenda Cao
• 金额: $ 44.28万
• 依托单位: New Jersey Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2108235&HistoricalAwards=false
• 关键词: Advancing; Spicule; Physics; Resolution; Data

This Daniel K. Inouye Solar Telescope (DKIST) First Science project focuses on understanding how mass and energy are moved between layers of the Sun’s atmosphere. The project will combine ground and space-based data to achieve an unprecedented understanding of small-scale features on the Sun. This project has broader societal relevance due to its linkage with space weather, which is driven by solar activity and potentially has catastrophic impacts on modern society. Improving the accuracy of predictive models for space weather is a national priority as delineated in the National Science and Technology Council’s 2019 Space Weather Strategy and Action Plan. This project also has the potential to enhance our understanding of other stars and of space weather impacts on potentially habitable exoplanets. This project will support a postdoctoral research associate, further building the community of scientists with knowledge of both ground-based and space-based instruments and data.This project aims to understand the origins of Rapid Blue-shifted Excursions, which are observed in ultraviolet light as type II spicules. Spicules move mass and energy from the light radiating layer of the Sun’s atmosphere, the photosphere, through the chromosphere to the corona. How and why the structures form during quiet periods on the Sun is not understood. This study will combine new observations from NSF’s DKIST along with data from the Goode Solar Telescope and from NASA Heliospheric missions to address this. DKIST, with its unprecedented resolution, is uniquely able to measure these structures which are small and short lived. Combining DKIST measurements from the Visible Broadband Imager, the Visible SpectroPolarimeter, and Visible Tunable Filter with viewpoints from other instruments will provide new insights into the role the spicules play in the global dynamics of the quiet Sun. This project addresses the DKIST Critical Science Plan Research Area “Magnetic Connectivity through the Non-Eruptive Solar Atmosphere”, specifically “Mass and Energy Cycle in the Low Solar Atmosphere”.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.

这个丹尼尔·K·井上太阳望远镜(DKIST)的第一科学项目专注于了解质量和能量是如何在太阳大气层的各层之间转移的。该项目将结合地面和天基数据，实现对太阳上小尺度特征的前所未有的了解。该项目具有更广泛的社会意义，因为它与空间天气联系在一起，空间天气由太阳活动驱动，可能对现代社会产生灾难性影响。正如国家科学技术委员会2019年空间天气战略和行动计划所描绘的那样，提高空间天气预测模型的精度是国家优先事项。该项目还有可能增进我们对其他恒星和空间天气对潜在宜居系外行星的影响的了解。该项目将支持一名博士后研究助理，进一步建立拥有地面和天基仪器和数据知识的科学家社区。该项目旨在了解快速蓝移漂移的起源，这是在紫外线中观察到的II型针刺。针状体将质量和能量从太阳大气层的光辐射层，即光球层，通过色球转移到日冕。这些结构是如何以及为什么在太阳上的宁静期形成的，目前尚不清楚。这项研究将结合来自NSF DKIST的新观测，以及来自Goode太阳望远镜和NASA日光层任务的数据来解决这个问题。DKIST以其前所未有的分辨率，独一无二地能够测量这些小而寿命短的结构。将可见宽带成像仪、可见光谱偏振仪和可见可调滤光片的DKIST测量结果与其他仪器的视点相结合，将为针状物在静日全球动力学中所起的作用提供新的见解。该项目涉及DKIST关键科学计划研究领域“通过非爆发太阳大气的磁连接”，特别是“低太阳大气中的质量和能量循环”。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Triggering Mechanism for Eruption of Two Filaments Observed by the Solar Dynamics Observatory, Nobeyama Radioheliograph, and RHESSI

• DOI: 10.3847/2041-8213/ac7236
• 发表时间: 2022-06
• 期刊: The Astrophysical Journal Letters
• 作者: Sujin Kim;V. Yurchyshyn

Solar Chromospheric Network as a Source for Solar Wind Switchbacks

• DOI: 10.3847/2041-8213/ac86bf
• 发表时间: 2022-08
• 期刊: The Astrophysical Journal Letters
• 作者: Jeongwoo Lee;V. Yurchyshyn;Haimin Wang;Xu Yang;W. Cao;Juan Carlos Martínez Oliveros

Predicting CME arrival time through data integration and ensemble learning

• DOI: 10.3389/fspas.2022.1013345
• 发表时间: 2022-10
• 期刊: Space Weather
• 作者: Khalid A. Alobaid;Yasser Abduallah;J. T. Wang;Haimin Wang;Haodi Jiang;Yan Xu;V. Yurchyshyn;Hongyang Zhang;H. Cavus;J. Jing

High-precision Multichannel Solar Image Registration Using Image Intensity

• DOI: 10.3847/1538-4365/ac7232
• 发表时间: 2022-07
• 期刊: The Astrophysical Journal Supplement Series
• 作者: Bo Liang;Xi Chen;Lan Yu;Song Feng;Yangfan Guo;W. Cao;W. Dai;Yunfei Yang;D. Yuan

Evolution of coronal magnetic field parameters during X5.4 solar flare

X5.4太阳耀斑期间日冕磁场参数的演变

• DOI: 10.3389/fspas.2023.1148293
• 发表时间: 2023
• 期刊: Frontiers in Astronomy and Space Sciences
• 影响因子: 3
• 作者: Garland, Seth H.;Yurchyshyn, Vasyl B.;Loper, Robert D.;Akers, Benjamin F.;Emmons, Daniel J.
• 通讯作者: Emmons, Daniel J.