The onset of flares at the meter wavelengths

Details The onset of flares at the meter wavelengths The onset of flares at the meter wavelengths

Mar 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976soph...47..285s&link_type=abstract

(NASA, IAU, IUGG, and International Council of Scientific Unions, Workshop on Flare Build-up Study, Falmouth, Mass., Sept. 8-11,

Physics

2

Solar Flares, Solar Radio Emission, Type 3 Bursts, Very High Frequencies, Brightness Temperature, Electron Energy, High Frequencies, Solar Corona, Type 5 Bursts

Scientific paper

The onset of most flares at the meter wavelengths consists of type III bursts and their variants. These bursts usually occur during the explosive phase of flare events and in close association with similar impulsive bursts at other wavelengths. Pre-burst brightenings, corresponding to the preexplosive-phase heating observed at microwave and shorter wavelengths, have so far not been reported from observations with the Culgoora meterwave heliograph. If substantial pre-heating occurred in the coronal source regions of meterwave radiation, pre-burst brightenings would be expected at short meter wavelengths. A search for such pre-burst brightenings will become possible when the Culgoora heliograph begins to operate in a new mode which will allow all incoming data (rather than selected segments, as at present) to be kept for further analysis.

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