# Astro2020 Science White Paper: Probing Magnetic Reconnection in Solar   Flares - New Perspectives from Radio Dynamic Imaging Spectroscopy

**Authors:** Bin Chen (1), Tim Bastian (2), Joel Dahlin (3), James F. Drake (4),, Gregory D. Fleishman (1), Dale E. Gary (1), Lindsay Glesener (5), Fan Guo, (6), Hantao Ji (7), Pascal Saint-Hilaire (8), Chengcai Shen (9), Stephen M., White (10) ((1) New Jersey Institute of Technology, (2) National Radio, Astronomy Observatory, (3) NASA Goddard Space Flight Center, (4) University, of Maryland, (5) University of Minnesota, (6) Los Alamos National Laboratory,, (7) Princeton University, (8) University of California, Berkeley, (9) Center, for Astrophysics | Harvard & Smithsonian, (10) Air Force Research Laboratory)

arXiv: 1903.11192 · 2019-03-28

## TL;DR

This paper highlights how broadband radio dynamic imaging spectroscopy enhances understanding of magnetic reconnection in solar flares by providing detailed remote-sensing observations that pinpoint reconnection sites and track energetic particles.

## Contribution

It introduces the application of radio dynamic imaging spectroscopy as a transformative technique for studying magnetic reconnection in solar flares, offering new insights into energy release processes.

## Key findings

- Pinpoints magnetic reconnection sites with high precision
- Measures time-evolving reconnecting magnetic fields
- Derives spatially and temporally resolved electron distributions

## Abstract

Magnetic reconnection is a fundamental physical process in many laboratory, space, and astrophysical plasma contexts. Solar flares serve as an outstanding laboratory to study the magnetic reconnection and the associated energy release and conversion processes under plasma conditions difficult to reproduce in the laboratory, and with considerable spatiotemporal details not possible elsewhere in astrophysics. Here we emphasize the unique power of remote-sensing observations of solar flares at radio wavelengths. In particular, we discuss the transformative technique of broadband radio dynamic imaging spectroscopy in making significant contributions to addressing several outstanding challenges in magnetic reconnection, including the capability of pinpointing magnetic reconnection sites, measuring the time-evolving reconnecting magnetic fields, and deriving the spatially and temporally resolved distribution function of flare-accelerated electrons.

## Full text

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## Figures

4 figures with captions in the complete paper: https://tomesphere.com/paper/1903.11192/full.md

## References

54 references — full list in the complete paper: https://tomesphere.com/paper/1903.11192/full.md

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Source: https://tomesphere.com/paper/1903.11192