Alfven Waves in a Cold Plasma with Curved Magnetic Fields

reportActive / Technical Report | Accession Number: ADA200312 | Open PDF

Abstract:

The set of linearized magnetohydrodynamic equations has been reduced to the reflectivity equation for the compressional magnetic perturbations in the framework of the Radoski model. It has been shown that the reflection coeficient is a function of the inhomogeneities of the magnetic field, and the inhomogeneities of the Alfven velocity. An interesting property of the reflectivity equation is that, near Alfven resonant magnetic force lines, this equation reduces to the curvature free Budden equation. Near Alfven resonances the curvature does not play a significant role and Buddens asymptotics in time can be applied to the wave field near the magnetic force lines where the Alfven dispersion relation holds. Keywords Magnetosphere Resonance Hydromagnetic waves.

Author(s):
Carrion, Philip M. ; Hasegawa, Akira ; Patton, Waldo ; Prakash, Manju
Author Organization(s):
HENRY KRUMB SCHOOL OF MINES NEW YORK
Descriptive Note:
Final rept. 1 Jan 1985-31 Dec 1986
Supplementary Note:
DOI: 10.21236/ADA200312
Pagination:
0037

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFOSR-TR-88-1083
Contract/Grant Number(s):
AFOSR-85-0029
Task Number(s):
A1
Project Number(s):
2311
Monitor Series:
TR-88-1083, AFOSR
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.3.3_Spectrum Management; JCA_3.2.1_Kinetic Means; JCA_1_Force Support; JCA_6_Net Centric; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_5_Command and Control; JCA_6.3_Net Management; JCA_5.3_Planning; JCA_6.1.3_Switching and Routing
Modernization Areas:
Space; Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
*MAGNETOHYDRODYNAMIC WAVES, *MAGNETOSPHERE, PLASMAS(PHYSICS), MAGNETIC RESONANCE, CURVATURE, PERTURBATIONS, MAGNETIC DISTURBANCES, MAGNETOHYDRODYNAMICS, LINEAR ALGEBRAIC EQUATIONS, MAGNETIC FORCES, MAGNETIC FIELDS, LOW TEMPERATURE, REFLECTIVITY
Field(s)/Group(s):
Atmospheric Physics
Keyword(s):
ALFVEN WAVES, PE61102F, WUAFOSR2311A1
Report Date:
1988 Jun 01