Second Harmonics of Saturn Narrowband Radio Emissions

Details Second Harmonics of Saturn Narrowband Radio Emissions Second Harmonics of Saturn Narrowband Radio Emissions

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agusmsm13a..06y&link_type=abstract

American Geophysical Union, Spring Meeting 2009, abstract #SM13A-06

Mathematics

Probability

2756 Planetary Magnetospheres (5443, 5737, 6033), 6964 Radio Wave Propagation, 6984 Waves In Plasma (7867)

Scientific paper

We report second harmonic emissions of the 20 kHz Saturn narrowband emissions observed by the Cassini Radio and Plasma Wave Science (RPWS) instrument. These emissions are similar in many ways to the second harmonic emissions observed in both solar radio bursts and planetary radio emissions. Polarization measurements show that the fundamental emissions are polarized as L-O mode whereas the second harmonics are polarized as R-X mode. The occurrence probability of the second harmonic emissions will be shown. The spectra of the fundamental and second harmonic bands will be compared in detail to find out the correlation between their power fluxes. We propose the nonlinear wave-wave interactions of upper hybrid waves as the generation mechanism of second harmonic narrowband emissions.

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