Repeated Type III Burst Groups Associated with a B-Class Flare and a Narrow-Width CME
Additional information
Authors
Pohjolainen S.,
McKay D.,
Talebpour Sheshvan N.,
Monstein C.
Type
Journal Article
Year
2023
Language
English
Abstract
We have analysed a solar event from 27 September 2021, which included a small GOES B-class flare, a compact and narrow-width CME, and radio type III bursts that appeared in groups. The long-duration, repeated metric type III burst emission indicates continuous electron acceleration at high altitudes. The flaring active region was surrounded by strong magnetic fields and large-scale loops, which guided the outflow of the CME plasmoid and hence the narrow, bullet-like appearance of the CME. Radio imaging and EUV observations confirmed the direction of particle propagation and the depletion of matter from the solar source region. We observed V-shaped type III burst emission lanes, which also explain the field configuration and suggest a possible location for repeated reconnection that occurred at a constant altitude.
Keywords
Flares, Dynamics, Magnetic fields, Corona, Radio bursts, Association with flares, Coronal mass ejections, Initiation and propagation
Journal
Solar Physics
Volume
298
Number ( Month )
10 ( October )
Pages (or article number)
118
