Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87...17k&link_type=abstract
Journal of Geophysical Research, vol. 87, Jan. 1, 1982, p. 17-34.
Astronomy and Astrophysics
Astronomy
68
Interplanetary Space, Plasma Turbulence, Plasma Waves, Shock Wave Propagation, Electric Fields, Electron Plasma, Interplanetary Magnetic Fields, Solar Wind, Spectrum Analysis
Scientific paper
Regions of plasma turbulence extending several tenths of an astronomical unit upstream or downstream of interplanetary shocks have been detected by the plasma wave instrument on ISEE 3. Highly impulsive electric field bursts at 1-10 kHz were found (hours upstream of quasi-parallel interplanetary shocks) whose average and peak amplitudes occasionally increased until the shock crossing, when they were suppressed. A 0.1-1 kHz electric field component was enhanced at nearly all shocks, and persisted downstream. A smooth, high-frequency continuum near and above the local electron plasma frequency was enhanced at, and persisted downstream of, every interplanetary shock studied. While no single interplanetary shock showed every effect, the ensemble of shocks contained at least one example of each type of plasma wave found upstream of the earth's bow shock.
Coroniti Ferdinan V.
Gurnett Donald A.
Kennel Charles F.
Scarf Frederick L.
Smith Edward. J.
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