Accession Number : AD0776660

Title :   Thermal and Suprathermal Plasma Densities in the Outer Magnetosphere.

Descriptive Note : Progress rept.,

Corporate Author : IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Gurnett,Donald A. ; Frank,Louis A.

Report Date : OCT 1973

Pagination or Media Count : 31

Abstract : Using the low-frequency cutoff of electromagnetic noise trapped in the magnetosphere at frequencies above the local plasma frequency it is now possible to make very accurate, plus or minus 1%, electron density measurements in the low density region between the magnetopause and plasmapause. This technique for measuring the total plasma density has been used, together with measurements of the suprathermal proton intensities with the LEPEDEA instrumentation on the IMP-6 spacecraft, to determine the thermal proton densities in the region between the plasmapause and magnetopause. (Modified author abstract)

Descriptors :   *Magnetosphere, *Plasmas(Physics), Electron density, Protons, Scientific satellites

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE