Loading...
Please wait, while we are loading the content...
Similar Documents
Microscale instabilities in stream interaction regions
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Goldstein, M. L. Eviatar, A. |
| Copyright Year | 1979 |
| Description | The microstructure of solar wind stream interaction regions is considered theoretically with emphasis on the role of several electrostatic kinetic instabilities 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, 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 are 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. Various electrostatic plasma waves, ranging in frequency from the lower-hybrid to harmonics of the electron cyclotron frequency, would be produced by these instabilities. Their signature should also be seen by high time resolution measurements of the temperature of the various plasma species. |
| File Size | 2902758 |
| Page Count | 52 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790025971 |
| Archival Resource Key | ark:/13960/t6j14vg97 |
| Language | English |
| Publisher Date | 1979-08-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Interfaces Ion Acoustic Waves Plasma-electromagnetic Interaction Larmor Radius Electrostatic Waves Plasma Density Plasma Temperature Magnetohydrodynamic Stability Solar Wind Velocity Interplanetary Magnetic Fields Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
