A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Repeated Type III Burst Groups Associated with a B-Class Flare and a Narrow-Width CME
Tekijät: Pohjolainen Silja, Mckay Derek, Sheshvan Nasrin Talebpour, Monstein Christian
Kustantaja: Springer Dordrecht
Julkaisuvuosi: 2023
Journal: Solar Physics
Tietokannassa oleva lehden nimi: SOLAR PHYSICS
Lehden akronyymi: SOL PHYS
Artikkelin numero: 118
Vuosikerta: 298
Sivujen määrä: 15
ISSN: 0038-0938
DOI: https://doi.org/10.1007/s11207-023-02212-8
Verkko-osoite: https://doi.org/10.1007/s11207-023-02212-8
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/181459275
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.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
