Newly available high-resolution imaging of solar radio emission at many closely spaced frequencies and times provides new physical insight into the processes, structure, and dynamics of the solar atmosphere. The observational advances have spurred renewed interest in topics dating from the early days of solar radio astronomy and have led to considerable advances in our knowledge. Highlights of recent advances include the following: ▪Quantitatively measuring the dynamic magnetic field strength, particle acceleration, and hot thermal plasma at the heart of solar flares and hinting at the processes that relate them.▪Resolving in space and time the energization and transport of electrons in a wide range of contexts.▪Mapping the magnetized thermal plasma structure of the solar chromosphere and corona over a substantial range of heights in active and quiet regions of the Sun. This review explains why solar radio imaging spectroscopy is so powerful, describes the body of recent results, and outlines the future work needed to fully realize its potential. The application of radio imaging spectroscopy to stars and planets is also briefly reviewed.

中文翻译：

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来自太阳无线电发射成像光谱的新见解


新近获得的太阳无线电发射在许多紧密间隔的频率和时间的高分辨率成像为了解太阳大气的过程、结构和动力学提供了新的物理见解。观测的进步激发了人们对太阳射电天文学早期主题的新兴趣，并导致我们的知识取得了长足的进步。最新进展的亮点包括： ▪定量测量太阳耀斑中心的动态磁场强度、粒子加速度和热热等离子体，并暗示将它们联系起来的过程。▪在空间和时间上解决电子在各种环境中的通电和传输问题。▪在太阳的活跃和安静区域，绘制太阳色球层和日冕在相当高的范围内磁化热等离子体结构。 这篇综述解释了为什么太阳射电成像光谱学如此强大，描述了最近的结果，并概述了充分实现其潜力所需的未来工作。还简要回顾了射电成像光谱学在恒星和行星上的应用。