Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm12a0836m&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SM12A-0836
Physics
2756 Planetary Magnetospheres (5443, 5737, 6030), 2772 Plasma Waves And Instabilities, 7871 Waves And Instabilities
Scientific paper
The Cassini mission gravity-assisted flyby of Jupiter provided an opportunity to investigate radio emission attenuation lanes that were previously observed in the Voyager and Galileo mission data. The Cassini radio and plasma wave science (RPWS) investigation is the most advanced plasma wave instrument to visit the Jovian system, measuring electric fields over the frequency range from 1 Hz to 16 MHz with high spectral and temporal resolution. The narrow attenuation lanes in the hectometric emission vary in frequency with system III longitude. The lanes have been modeled in the past assuming a high-latitude cyclotron source region with emission that is efficiently scattered when the ray path is nearly tangent to the Io L-shell [Gurnett et al., 1998]. In the current study we present Cassini observations of attenuation lanes with high spectral resolution, and show the results of additional modeling to explain some of the frequency-dependent features of the lanes.
Gurnett Donald A.
Hospodarsky George B.
Kurth Willaim S.
Menietti Douglas J.
Zarka Ph.
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