Accession Number : AD0745576

Title :   Electron-Temperature Asymmetry and the Structure of the Solar Wind.

Descriptive Note : Rept. for Sep 69-Jun 71,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Schulz,Michael ; Eviator,Aharan

Report Date : 30 MAY 1972

Pagination or Media Count : 51

Abstract : The observational fact that, in the frame of the solar wind, outgoing thermal electrons have a somewhat larger mean energy than those incoming corresponds to an outward 'heat flow' that can be simulated in the extreme by a purley exospheric model. In the present work, microinstabilities of the interplanetary plasma are studied within the framework of an underlying electron-proton solar exosphere. Although collisions are neglected by definition, heat-flow moments of the distribution functions are significantly bounded by virture of geometry. This fact permits velocity-space instabilities driven by heat flow to be analyzed under the most extreme conditions (exospheric) conceivably attainable. (Author)

Descriptors :   (*SOLAR WIND, MAGNETOHYDRODYNAMICS), PLASMAS(PHYSICS), TURBULENCE, TEMPERATURE, ELECTRON DENSITY

Subject Categories : Astrophysics
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE