Resonant phenomena of hydromagnetic waves in non-uniform space plasmas

被引:0
|
作者
Cadez, VM [1 ]
De Keyser, J [1 ]
Roth, M [1 ]
机构
[1] Inst Aeron Spatiale Belgique, B-1180 Brussels, Belgium
来源
PLASMA SOURCES SCIENCE & TECHNOLOGY | 2002年 / 11卷 / 3A期
关键词
D O I
10.1088/0963-0252/11/3A/310
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
In non-uniform plasmas, linear magnetohydrodynamic waves can get into resonant interaction with the background plasma at locations where propagating waves and local modes, existing in regions of pronounced non-uniformity, satisfy the resonant condition of phase synchronism. This leads to a resonant excitation of local modes and growth of their amplitudes. Consequently, the effect of dissipation becomes important which eventually limits the amplitudes to finite values in domains of around resonances. The incident wave then loses its energy and a process known as the resonant wave absorption occurs. In a non-static background plasma, a non-uniform macroscopic mass flow can act as a free energy source, causing phenomena of resonant instability of local modes and over-reflection of incident waves when reflected waves gain energy from the flow. Such resonant processes may appear in magnetic structures in the solar corona, in sunspots, in planetary magnetopauses, bowshocks and magnetotails contributing to energy transfer and transports of other physical quantities. Some of these phenomena can be related to locally enhanced physical quantities as detected by satellites. In this paper, we present a number of analytical and computational approaches in treating the resonant wave behaviour in non-uniform plasma configurations relevant to solar and terrestrial conditions.
引用
收藏
页码:A69 / A73
页数:5
相关论文
共 50 条
  • [1] Mixed Properties of MHD Waves in Non-uniform Plasmas
    Goossens, Marcel L.
    Arregui, Inigo
    Van Doorsselaere, Tom
    [J]. FRONTIERS IN ASTRONOMY AND SPACE SCIENCES, 2019, 6
  • [2] ON THE INFLUENCE OF IONOSPHERES WITH NON-UNIFORM CONDUCTIVITY DISTRIBUTION ON HYDROMAGNETIC-WAVES
    GLASSMEIER, KH
    [J]. JOURNAL OF GEOPHYSICS-ZEITSCHRIFT FUR GEOPHYSIK, 1984, 54 (02): : 125 - 137
  • [3] MOTION OF A NON-UNIFORM HYDROMAGNETIC SHOCK WAVE
    GUNDERSEN, RM
    [J]. ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK, 1967, 18 (01): : 116 - +
  • [4] The Alfven wave parallel electric field in non-uniform space plasmas
    Klimushkin, Dmitri Y.
    Mager, Pavel N.
    [J]. ASTROPHYSICS AND SPACE SCIENCE, 2014, 350 (02) : 579 - 583
  • [5] The Alfvén wave parallel electric field in non-uniform space plasmas
    Dmitri Y. Klimushkin
    Pavel N. Mager
    [J]. Astrophysics and Space Science, 2014, 350 : 579 - 583
  • [6] Linear mode conversion of forward and backward surface waves in axially non-uniform plasmas
    Aliev, YM
    Schluter, H
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (09) : 2519 - 2521
  • [7] HELICON WAVES IN A NON-UNIFORM PLASMA
    BLEVIN, HA
    CHRISTIANSEN, PJ
    [J]. PLASMA PHYSICS, 1968, 10 (08): : 799 - +
  • [8] Helicon waves in a non-uniform plasma
    Chen, Francis F.
    Hsieh, M. Johannes
    Light, Max
    [J]. PLASMA SOURCES SCIENCE & TECHNOLOGY, 1994, 3 (01): : 49 - 57
  • [9] LOVE WAVES IN NON-UNIFORM WAVEGUIDES
    BOORE, DM
    [J]. TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1969, 50 (04): : 251 - &
  • [10] Excitation of Hybrid Space-Surface Waves in Clinotrons with Non-uniform Grating
    E. M. Khutoryan
    Yu. S. Kovshov
    A. S. Likhachev
    S. S. Ponomarenko
    S. A. Kishko
    K. A. Lukin
    V. V. Zavertanniy
    T. V. Kudinova
    S. A. Vlasenko
    A. N. Kuleshov
    T. Idehara
    [J]. Journal of Infrared, Millimeter, and Terahertz Waves, 2018, 39 : 236 - 249