Solar Wind Turbulence Outlined Through Magnetic Islands and Nonlinear Waves

被引:0
作者
Sharma, R. P. [1 ]
Gaur, Nidhi [2 ]
Sharma, Swati [3 ]
Mishra, M. K. [3 ]
机构
[1] Indian Inst Technol Delhi, Ctr Energy Studies, New Delhi, India
[2] KR Mangalam Univ, Sch Basic & Appl Sci, Gurugram, Haryana, India
[3] Univ Rajasthan, Dept Phys, Jaipur, India
来源
FRONTIERS IN ASTRONOMY AND SPACE SCIENCES | 2022年 / 9卷
关键词
turbulence; magnetic islands; energy spectrum; solar wind; Alfven waves; AMPLITUDE ALFVEN WAVES; PARAMETRIC-INSTABILITIES; ACCELERATION; RECONNECTION; DISSIPATION; SIMULATION; GENERATION; DYNAMICS; RANGE; MODEL;
D O I
10.3389/fspas.2022.896671
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Various space missions and observations over the past decades have provided unexampled details about the nature of solar wind, the acceleration mechanism, and different nonlinear phenomena responsible for energy transfer and turbulence in the interplanetary space. This review focuses on the role of Alfvenic fluctuations-both kinetic Alfven wave (KAW) and dispersive Alfven wave (DAW)-in driving solar wind turbulence and magnetic reconnection at 1 AU. The process of filamentation has been studied through a nonlinear coupling system of KAW/IAW (ion acoustic wave) and relatively high-frequency pump KAW (HKAW, i.e., frequency less than ion cyclotron frequency) in the presence of LKAW (low-frequency KAW, i.e., frequency very much less then ion cyclotron frequency) perturbation by formulating their dynamical equations in the presence of ponderomotive force and using the numerical results for the same. A simplified model is presented to have a deeper insight into the evolution pattern using the results of simulation. The formation of coherent structures and current sheets using a numerical and semi-analytical approach is elaborated near the magnetic reconnection sites. In addition to this, the relevance of the generated turbulence is also depicted through the energy spectrum by examining the spectral index which is noticeable in determining the energy cascade down to smaller scales.
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页数:16
相关论文
共 85 条
  • [1] SELF-FOCUSING AND DIFFRACTION OF LIGHT IN A NONLINEAR MEDIUM
    AKHMANOV, SA
    SUKHORUKOV, AP
    KHOKHLOV, RV
    [J]. SOVIET PHYSICS USPEKHI-USSR, 1968, 10 (05): : 609 - +
  • [2] Small-scale energy cascade of the solar wind turbulence
    Alexandrova, O.
    Carbone, V.
    Veltri, P.
    Sorriso-Valvo, L.
    [J]. ASTROPHYSICAL JOURNAL, 2008, 674 (02) : 1153 - 1157
  • [3] Solar Wind Turbulence and the Role of Ion Instabilities
    Alexandrova, O.
    Chen, C. H. K.
    Sorriso-Valvo, L.
    Horbury, T. S.
    Bale, S. D.
    [J]. SPACE SCIENCE REVIEWS, 2013, 178 (2-4) : 101 - 139
  • [4] Universality of Solar-Wind Turbulent Spectrum from MHD to Electron Scales
    Alexandrova, O.
    Saur, J.
    Lacombe, C.
    Mangeney, A.
    Mitchell, J.
    Schwartz, S. J.
    Robert, P.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 103 (16)
  • [5] Measurement of the electric fluctuation spectrum of magnetohydrodynamic turbulence
    Bale, SD
    Kellogg, PJ
    Mozer, FS
    Horbury, TS
    Reme, H
    [J]. PHYSICAL REVIEW LETTERS, 2005, 94 (21)
  • [6] LARGE-AMPLITUDE ALFVEN WAVES IN INTERPLANETARY MEDIUM .2.
    BELCHER, JW
    DAVIS, L
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH, 1971, 76 (16): : 3534 - +
  • [7] DYNAMICS OF DECAYING TWO-DIMENSIONAL MAGNETOHYDRODYNAMIC TURBULENCE
    BISKAMP, D
    WELTER, H
    [J]. PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1989, 1 (10): : 1964 - 1979
  • [8] Waves in the magnetized solar atmosphere.: II.: Waves from localized sources in magnetic flux concentrations
    Bogdan, TJ
    Hansteen, MCV
    McMurry, A
    Rosenthal, CS
    Johnson, M
    Petty-Powell, S
    Zita, EJ
    Stein, RF
    McIntosh, SW
    Nordlund, Å
    [J]. ASTROPHYSICAL JOURNAL, 2003, 599 (01) : 626 - 660
  • [9] Bookbinder J., 2019, PLASMA 2020 DECADAL
  • [10] PARAMETRIC-INSTABILITIES OF FINITE-AMPLITUDE ALFVEN WAVES
    BRODIN, G
    STENFLO, L
    [J]. PHYSICA SCRIPTA, 1988, 37 (01): : 89 - 92