Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...107..178f&link_type=abstract
Astronomy and Astrophysics, vol. 107, no. 1, Mar. 1982, p. 178-185. Deutsche Forschungsgemeinschaft
Astronomy and Astrophysics
Astrophysics
16
Centimeter Waves, Decimeter Waves, Electron Energy, Solar Activity, Solar Radio Emission, Solar X-Rays, Emission Spectra, Energetic Particles, Goes 2, Nonthermal Radiation, Solar Spectra, Thermal Radiation
Scientific paper
Centimeter and decimeter observations of very small solar soft X-ray events detected by the GOES-2 satellite on March 2, 1979, are reported. The radio events are labeled 'blips' because of their faintness at cm-wavelengths combined with fast variation of the flux and because of unusual narrow-band emission at dm-wavelengths. The blips occur mainly in the rise phase of the X-ray emission. Analysis of the blips shows that nonthermal radiation of fast electrons is the origin of their emission. The energy of fast electrons necessary to explain the cm-blip flux is roughly equal to the heat energy of the X-ray source. This is seen as a hint that the X-ray source is heated by the excess energy of the fast electrons. The X-ray source is assumed to resemble an emerging flux region with a size typical of X-ray kernels.
Benz Arnold O.
Fuerst Ernst
Hirth W.
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