The Jovian S-bursts. II - Frequency drift measurements at different frequencies throughout several storms

Details The Jovian S-bursts. II - Frequency drift measurements at different frequencies throughout several storms The Jovian S-bursts. II - Frequency drift measurements at different frequencies throughout several storms

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....86..349l&link_type=abstract

Astronomy and Astrophysics, vol. 86, no. 3, June 1980, p. 349-354.

Astronomy and Astrophysics

Astronomy

12

Drift Rate, Frequency Measurement, Jupiter (Planet), Planetary Radiation, Radio Bursts, Decametric Waves, Io, Radio Astronomy, Space Exploration, Jupiter, Radio Emissions, Bursts, Frequency, Storms, Hypotheses, Io, Electrons, Satellites, Observations, Accelerations, Ionosphere, Data, Equipment, Procedure, Drift Rate, Origin, Particles, Mathematical Models

Scientific paper

The frequency drift measurements performed at different frequencies throughout several storms to test the hypothesis of trapped electrons accelerated at Io are presented. The observations were made in the 20-40 MHz range with high time and frequency resolutions; the measurements show that the average value of the drift-rate at a fixed frequency varies all along a given storm. The measured drift-rate of a storm cannot be fitted by a set of curves deduced from the trapped electrons hypothesis; at the maximum frequency of emission, very high drift-rates are measured for most cases, which contradicts this hypothesis. It is concluded that the electrons responsible for the S-burst emission are more likely accelerated in the ionosphere of Jupiter than at Io.

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