CAREER: Probing Energy Release in Solar Explosive Events with New Generation Radio Telescopes

职业：用新一代射电望远镜探测太阳爆炸事件中的能量释放

• 批准号: 1654382
• 负责人: Bin Chen
• 金额: $ 71.74万
• 依托单位: New Jersey Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-01-15 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1654382&HistoricalAwards=false
• 关键词: CAREER; Probing; Energy; Release; Solar

The research program of this five-year CAREER project has the potential to significantly advance knowledge on key topics in heliophysics and astrophysics, namely the physical mechanism(s) responsible for releasing a large amount of energy catastrophically and accelerating charged particles to high energies in a short timescale. By developing unique methods enabled by the new radio observing technique, the project will fill a major gap in the knowledge of the location and properties of the energy release site by tracing accelerated electrons, mapping dynamic shocks, as well as deriving energetic electron distribution and magnetic field in and around the flaring region. It is expected that the knowledge gained from this project will impact not only the field of solar physics, but also many other heliophysical and astrophysical contexts where similar physical processes occur in the magnetized plasma.This CAREER project will utilize a new generation of radio telescopes, including the Expanded Owens Valley Solar Array and the Jansky Very Large Array, to study solar explosions with a fundamentally new technique: broadband radio dynamic imaging spectropolarimetry. This technique enables the capability of obtaining a high-resolution radio spectrum from every pixel of a radio image at a cadence of tens of milliseconds. Complemented by multi-wavelength data in optical, ultraviolet, and X-rays, these radio observations will provide revolutionarily new diagnostic methods to probe fundamental physical processes behind these explosive events. Topics of the proposed research project will be integrated into teaching and mentoring students at all levels. A Solar Radio Laboratory (SRL) will be built on campus to serve as a new teaching facility for student education and hands-on training in both physics and engineering. The PI will also contribute to the development of a new graduate curriculum in solar and space physics under the framework of the multi-institutional Hale Collaborative Graduate Education (COLLAGE) program. The PI will create a course module for the COLLAGE program by integrating his specialties in high-energy solar physics, current research topics, and hands-on teaching/training resources enabled by the SRL.Improved knowledge on the origin of solar explosive events is critical to understanding the basic science needed to meet the goals of the National Space Weather Strategy and Action Plan, which aims to develop tools to forecast space weather and mitigate its impacts. The experience gained from this project will also form the basis for developing the Frequency Agile Solar Radiotelescope (FASR), which is a transformative solar radio telescope recommended by two decadal surveys for construction in this decade. The educational component of this program will educate and train students at all levels in cutting-edge observations, instrumentation, and modeling through the SRL platform. The development of the Hale COLLAGE Program will foster the growth of next-generation solar and space physicists by providing effective education and hands-on training for students at NJIT and other institutions. The research and EPO agenda of this CAREER project supports the Strategic Goals of the AGS Division in discovery, learning, diversity, and interdisciplinary research.

这个五年职业项目的研究计划有可能显着提高有关热物理和天体物理学主要主题的知识，即在短时间内将大量能量灾难性和加速带电的颗粒释放到高能量的物理机制。 通过开发由新无线电观察技术启用的独特方法，该项目将通过追踪加速电子，绘制动态冲击以及推导能量的电子分布和磁场和周围的磁场来了解能量释放位点的位置和特性的主要空白。 It is expected that the knowledge gained from this project will impact not only the field of solar physics, but also many other heliophysical and astrophysical contexts where similar physical processes occur in the magnetized plasma.This CAREER project will utilize a new generation of radio telescopes, including the Expanded Owens Valley Solar Array and the Jansky Very Large Array, to study solar explosions with a fundamentally new technique: broadband radio dynamic imaging光谱极化。 该技术使能够从无线电图像的每个像素以数十毫秒的节奏获得高分辨率的无线电频谱。 这些无线电观察结果辅以光学，紫外线和X射线中的多波长数据，将提供革命性的新诊断方法，以探测这些爆炸性事件背后的基本物理过程。 拟议的研究项目的主题将纳入各个级别的教学和指导学生。 将在校园内建造一个太阳能无线电实验室（SRL），以作为学生教育和物理和工程学的动手培训的新教学设施。 PI还将为在多机构Hale合作研究生教育（Collage）计划的框架下的框架内开发新的太阳能和太空物理研究生课程。 PI将通过将其专业集成到高能太阳物理学，当前的研究主题以及由SRL启用的动手教学/培训资源中创建一个课程模块，这是SRL.SRL.改进有关太阳爆炸性事件起源的知识，对于了解实现国家空间天气策略和行动计划的基本科学所需的基本科学所需的基本科学所需的基本科学至关重要的，以实现Space Spects的影响，以开发工具，该工具旨在启用其范围供应其供应和MIT供应。 从该项目中获得的经验还将构成开发频率敏捷太阳能放射线镜（FASR）的基础，这是这十年来两项decadal decadal Surveys推荐的变换太阳能射电望远镜。 该计划的教育组成部分将教育和培训各个级别的学生，以通过SRL平台进行尖端的观察，仪器和建模。 Hale拼贴计划的发展将通过为NJIT和其他机构的学生提供有效的教育和动手培训来促进下一代太阳能和太空物理学家的增长。 该职业项目的研究和EPO议程支持AGS部门在发现，学习，多样性和跨学科研究方面的战略目标。

项目成果

An overall view of temperature oscillations in the solar chromosphere with ALMA

• DOI: 10.1098/rsta.2020.0174
• 发表时间: 2020-10
• 期刊: Philosophical Transactions of the Royal Society A
• 作者: S. Jafarzadeh;S. Wedemeyer;B. Fleck;M. Stangalini;D. Jess;R. Morton;M. Szydlarski;V. Henriques;X. Zhu;T. Wiegelmann;J. C. Guevara Gómez;S. Grant;B. Chen;K. Reardon;S. White

The origin of underdense plasma downflows associated with magnetic reconnection in solar flares

• DOI: 10.1038/s41550-021-01570-2
• 发表时间: 2021-11
• 期刊: Nature Astronomy
• 影响因子: 14.1
• 作者: Chengcai Shen;Bin Chen;K. Reeves;Sijie Yu;V. Polito;Xiao-yang Xie

Energetic Electron Distribution of the Coronal Acceleration Region: First Results from Joint Microwave and Hard X-Ray Imaging Spectroscopy

• DOI: 10.3847/2041-8213/abe471
• 发表时间: 2021-02-01
• 期刊: ASTROPHYSICAL JOURNAL LETTERS
• 影响因子: 7.9
• 作者: Chen, Bin;Battaglia, Marina;Glesener, Lindsay
• 通讯作者: Glesener, Lindsay

Dynamic Spectral Imaging of Decimetric Fiber Bursts in an Eruptive Solar Flare

太阳耀斑爆发中分米纤维爆发的动态光谱成像

• DOI: 10.3847/1538-4357/aa8ee5
• 发表时间: 2017
• 期刊: The Astrophysical Journal
• 作者: Wang, Zhitao;Chen, Bin;Gary, Dale E.
• 通讯作者: Gary, Dale E.

Coronal Magnetic Field Measurements along a Partially Erupting Filament in a Solar Flare

• DOI: 10.3847/1538-4357/ac2f99
• 发表时间: 2021-10
• 期刊: The Astrophysical Journal
• 作者: Yuqian Wei;B. Chen 陈;Sijie 思捷 Yu 余;Haimin Wang;J. Jing;D. Gary