Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....94l...9l&link_type=abstract
Astronomy and Astrophysics, vol. 94, no. 2, Feb. 1981, p. L9-L12.
Astronomy and Astrophysics
Astronomy
17
Decametric Waves, Jupiter (Planet), Planetary Radiation, Radio Sources (Astronomy), Jupiter Atmosphere, Planetary Magnetospheres, Wave Diffraction, Jupiter, Radioemissions, Decameter Waves, Spectrum, Patterns, Phases, Diffraction, Source Medium, Plasmas, Magnetosphere, Rotation, Data, Frequency, Observations, Comparisons, Simulations, Satellites, Io, Toruses
Scientific paper
We show that the spectral and temporal 'nested arcs' pattern of the Jovian decametric radio-dynamic spectrum can be interpreted as due solely to the diffraction of a radio-source by a phase changing plasma structure, located permanently in Jupiter's magnetosphere and rotating with the planet. This entirely new approach of the phenomenon explains in a simple way many observational features not understood so far. It allows to reinterpret the observations, thus yielding new constraints on the physics of the emission.
Daigne Gerard
Lecacheux Alain
Meyer-Vernet Nicole
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