Physics
Scientific paper
Feb 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85..753e&link_type=abstract
Journal of Geophysical Research, vol. 85, Feb. 1, 1980, p. 753-766. Research supported by the University of Maryland and NASA.
Physics
Electrostatic Waves, Ion Motion, Magnetohydrodynamic Stability, Plasma Interactions, Solar Wind, Compression Waves, Cyclotron Radiation, Kinetic Theory, Microstructure, Shock Wave Propagation
Scientific paper
A theoretical investigation of the microstructure of solar wind stream interaction regions is presented. The role of several electrostatic kinetic instabilities is discussed which may be important within the stream interface and the compression region. Inside of 1 AU the interface is likely to be stable against the electrostatic streaming instabilities considered. Between 1 and 2 AU it is argued that the interface will excite the magnetized ion-ion instability. The compression region is also found to be unstable beyond 1 AU, where the modified two-stream instability, beam-cyclotron instability, and ion-acoustic instability will be important in determining the structure of the compressive pulses as they evolve into forward and reverse shocks. It is concluded that the modified two-stream instability and beam-cyclotron instability predominately play a role in heating the electrons to the threshold for the ion-acoustic instability.
Eviatar Aharon
Goldstein Michel L.
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