PMO OpenIR  > 太阳和太阳系等离子体研究团组
NONLINEAR GENERATION OF KINETIC-SCALE WAVES BY MAGNETOHYDRODYNAMIC ALFVEN WAVES AND NONLOCAL SPECTRAL TRANSPORT IN THE SOLAR WIND
Zhao, J. S.1,3; Voitenko, Y.2; Wu, D. J.1; De Keyser, J.2
2014-04-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume785Issue:2Pages:0
AbstractWe study the nonlocal nonlinear coupling and generation of kinetic Alfven waves (KAWs) and kinetic slow waves (KSWs) by magnetohydrodynamic Alfven waves (MHD AWs) in conditions typical for the solar wind in the inner heliosphere. This cross-scale process provides an alternative to the turbulent energy cascade passing through many intermediate scales. The nonlinearities we study are proportional to the scalar products of wave vectors and hence are called "scalar" ones. Despite the strong Landau damping of kinetic waves, we found fast growing KAWs and KSWs at perpendicular wavelengths close to the ion gyroradius. Using the parametric decay formalism, we investigate two independent decay channels for the pump AW: forward decay (involving co-propagating product waves) and backward decay (involving counter-propagating product waves). The growth rate of the forward decay is typically 0.05 but can exceed 0.1 of the pump wave frequency. The resulting spectral transport is nonlocal and anisotropic, sharply increasing perpendicular wavenumbers but not parallel ones. AWs and KAWs propagating against the pump AW grow with about the same rate and contribute to the sunward wave flux in the solar wind. Our results suggest that the nonlocal decay of MHD AWs into KAWs and KSWs is a robust mechanism for the cross-scale spectral transport of the wave energy from MHD to dissipative kinetic scales in the solar wind and similar media.
KeywordInstabilities Plasmas Solar Wind Turbulence Waves
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/785/2/139
WOS KeywordPOLAR CORONAL HOLE ; MAGNETIC HELICITY ; TURBULENCE ; PLASMA ; ENERGIZATION ; CYCLOTRON ; FLUCTUATIONS ; DISSIPATION ; EXCITATION ; ATMOSPHERE
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000335736800058
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10646
Collection太阳和太阳系等离子体研究团组
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
2.Belgian Inst Space Aeron, Space Phys Div, Solar Terr Ctr Excellence, B-1180 Brussels, Belgium
3.Chinese Acad Sci, Natl Astron Observ, Lab Solar Act, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Zhao, J. S.,Voitenko, Y.,Wu, D. J.,et al. NONLINEAR GENERATION OF KINETIC-SCALE WAVES BY MAGNETOHYDRODYNAMIC ALFVEN WAVES AND NONLOCAL SPECTRAL TRANSPORT IN THE SOLAR WIND[J]. ASTROPHYSICAL JOURNAL,2014,785(2):0.
APA Zhao, J. S.,Voitenko, Y.,Wu, D. J.,&De Keyser, J..(2014).NONLINEAR GENERATION OF KINETIC-SCALE WAVES BY MAGNETOHYDRODYNAMIC ALFVEN WAVES AND NONLOCAL SPECTRAL TRANSPORT IN THE SOLAR WIND.ASTROPHYSICAL JOURNAL,785(2),0.
MLA Zhao, J. S.,et al."NONLINEAR GENERATION OF KINETIC-SCALE WAVES BY MAGNETOHYDRODYNAMIC ALFVEN WAVES AND NONLOCAL SPECTRAL TRANSPORT IN THE SOLAR WIND".ASTROPHYSICAL JOURNAL 785.2(2014):0.
Files in This Item:
File Name/Size DocType Version Access License
2014094NONLINEAR GEN(640KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhao, J. S.]'s Articles
[Voitenko, Y.]'s Articles
[Wu, D. J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao, J. S.]'s Articles
[Voitenko, Y.]'s Articles
[Wu, D. J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao, J. S.]'s Articles
[Voitenko, Y.]'s Articles
[Wu, D. J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2014094NONLINEAR GENERATION OF KINETIC-SCALE WAVES BY MAGNETOHYDRODYNAMIC ALFVEN WAVES AND NONLOCAL SPECTRAL TRANSPORT IN THE SOLAR WIND.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.