Unusual Type III Burst Dynamics Produced by Diverging Magnetic Fields
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Number: | 311 |
1st Author: | Patrick McCauley |
2nd Author: | |
Published: | 27 November 2017 |
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Introduction
Type III solar radio bursts are widely believed to be caused by electron beams accelerated away from the Sun during solar flares. Fast electrons stimulate oscillations in the ambient plasma, which in turn produce radio emission. This plasma emission occurs at specific frequencies that are proportional to the square root of the ambient electron density. The plasma density in the [https://en.wikipedia.org/wiki/Corona solar corona] generally decreases outwards from the solar surface. The emission frequency is therefore related to the height that corresponds to the requisite background density, and type III bursts are characterized by a rapid drift to lower frequencies as the beams move outward.
References
[1] "Type III Solar Radio Burst Source Region Splitting Due to a Quasi-Separatrix Layer"
[2] "Tracing Electron Beams in the Sun's Corona with Radio Dynamic Imaging Spectroscopy"
RHESSI Nugget Date | 27 November 2017 + |
RHESSI Nugget First Author | Patrick McCauley + |
RHESSI Nugget Index | 311 + |