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Nonlinear MHD waves in the solar wind plasma structures
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UNSPECIFIED (2002) Nonlinear MHD waves in the solar wind plasma structures. In: 2nd Euroconference on Solar Cycle and Space Weather, VICO EQUENSE, ITALY, SEP 24-29, 2001. Published in: SOLSPA 2001: PROCEEDINGS OF THE SECOND SOLAR CYCLE AND SPACE WEATHER EUROCONFERENCE, 477 pp. 381-384. ISBN 92-9092-749-6. ISSN 0379-6566.
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Abstract
We investigate the interaction of magnetohydrodynamic waves with plasma density inhomogeneities. Our numerical study of the full MHD equations shows that: (A) Plasma density inhomogeneities are a source of non-linear generation of transverse compressive waves by a plane Alfven wave, and substantially enhance (by about a factor of 2) the generation of the longitudinal compressive waves. (B) Attained maximal values of the generated transverse compressive waves are insensitive to the strength of the plasma density inhomogeneity and the initial amplitude of the Alfven wave. (C) Efficiency of the generation depends weakly upon the plasma parameter. The maximum generated amplitude of transverse compressive wave, up to 32 % of the initial Alfven wave amplitude, is reached for about beta = 0.5. The results obtained demonstrate that plasma inhomogeneities enhance the efficiency of the non-linear wave coupling.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Series Name: | ESA SPECIAL PUBLICATIONS | ||||
Journal or Publication Title: | SOLSPA 2001: PROCEEDINGS OF THE SECOND SOLAR CYCLE AND SPACE WEATHER EUROCONFERENCE | ||||
Publisher: | ESA PUBLICATIONS DIVISION C/O ESTEC | ||||
ISBN: | 92-9092-749-6 | ||||
ISSN: | 0379-6566 | ||||
Editor: | SawayaLacoste, H | ||||
Official Date: | 2002 | ||||
Dates: |
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Volume: | 477 | ||||
Number of Pages: | 4 | ||||
Page Range: | pp. 381-384 | ||||
Publication Status: | Published | ||||
Title of Event: | 2nd Euroconference on Solar Cycle and Space Weather | ||||
Location of Event: | VICO EQUENSE, ITALY | ||||
Date(s) of Event: | SEP 24-29, 2001 |
Data sourced from Thomson Reuters' Web of Knowledge
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