Physics
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spro.proc..371m&link_type=abstract
Solar Physics with Radio Observations, Proceedings of the Nobeyama Symposium, held in Kiyosato, Japan, Oct. 27-30, 1998, Edited
Physics
2
Scientific paper
Flare-associated radio emissions, specifically microwave bursts, type~III bursts and type~III-like bursts, provide information on the spectrum of suprathermal electrons accelerated in a flare, and on the location of the acceleration region. They can also be used to map out both closed and open magnetic structures. The radio data also suggest that the energy release process in flares is highly structured in space and time, and provides indirect evidence that the corona is highly inhomogeneous on a finer scale than can be resolved. Of the many flare models proposed two are now favored by observational data. There is indirect evidence for the open field model from Yohkoh data, and there is strong evidence in favor of an emerging flux model from vector magnetogram data. The evidence that the emerging flux is already twisted implies that the energy released in a flare is already stored in the associated current system in the emerging flux, so that this energy is transported into the corona as the emerging flux loop rises. A specific emerging flux model, in which reconnection between two current-carrying flux loops releases magnetic energy, is reviewed briefly.
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