Computer Science
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.346...71l&link_type=abstract
In ESA, Study of the Solar-Terrestrial System p 71-76 (SEE N93-31674 12-90)
Computer Science
Plasma Turbulence, Plasma Waves, Shock Waves, Ulysses Mission, Amplitudes, Electromagnetic Radiation, Magnetometers, Solar Wind
Scientific paper
Results of a study of 24 interplanetary shocks observed by the Unified Radio and Plasma Wave Experiment (URAP) on the Ulysses spacecraft are presented. These shocks, observed between approximately 1 and 4 AU, display a variety of wave phenomena similar to those detected in earlier studies of shocks near 1 AU. The correspondence of the observed low frequency magnetic and electric field waves with the parallel index of refraction for whistler waves was investigated. Observed B/E ratios are found to be typically about a factor of 0.7 times the computed index of refraction, supporting the whistler interpretation of these waves, but also implying a prevalent electrostatic wave component which may be due to whistlers propagating at an angle to the interplanetary magnetic field. A statistical correlation of the amplitudes of the various types of waves with shock and solar wind properties is presented.
Balogh André
Canu Paolo
Cornilleau-Wehrlin Nicole
Forsyth Robert
Hoang Sang
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