Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26as..104..145i&link_type=abstract
Astronomy and Astrophysics Suppl. 104, 145-160 (1994)
Astronomy and Astrophysics
Astrophysics
105
Sun: Flares, Sun: Radio Radiation
Scientific paper
Solar flares frequently radiate in the 1-3 GHz range, the lowest frequency microwaves, but not much is known about the spectral shape of these emissions. We present a catalogue of selected bursts observed with a new spectrometer at ETH Zurich in the years 1989-1993. The original data set includes 268 events of various types. Featureless broadband continua generally attributed to gyrosynchrotron emission are often observed, but they are usually much weaker than the structured emissions probably caused by coherent processes. The selection emphasizes the latter class of events. The events show a rich variety of size and structures in time and frequency. Most events can be grouped into five major classes with some overlap and transitions. The samples of this catalogue have been selected to show the breadth of each class without stressing the extremes.
Benz Arnold O.
Isliker Heinz
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