PMO OpenIR  > 太阳和太阳系等离子体研究团组
NONLINEAR DAMPING OF ALFVEN WAVES IN THE SOLAR CORONA BELOW 1.5 SOLAR RADII
Zhao, J. S.1,2; Voitenko, Y.3; Guo, Y.4,5; Su, J. T.2; Wu, D. J.1
2015-10-01
Source PublicationASTROPHYSICAL JOURNAL
Volume811Issue:2
AbstractNonthermal velocities measured in the solar corona imply a strong damping of upward-propagating low-frequency less than or similar to 0.01 Hz Alfven waves at heliocentric distances from 1.02 to 1.4 solar radii. We propose a vector Alfven wave decay as a feasible mechanism for the observed Alfven wave damping. Contrary to the extensively studied scalar decay, the vector decay does not depend on the wave frequency and can be efficient for low-frequency coronal Alfven waves. We show that the vector decay is much stronger than the scalar decay and can provide the observed damping of 0.01 Hz coronal Alfven waves with perpendicular wavelengths of similar to 10(4) km or less. Fully three-dimensional (3D) numerical simulations are needed to capture this decay, whose growth rate is proportional to the vector product of interacting wave vectors.
KeywordMagnetohydrodynamics (Mhd) Solar Wind Sun: Corona Waves
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/811/2/88
WOS KeywordMAGNETOHYDRODYNAMIC TURBULENCE ; WIND ACCELERATION ; LINE WIDTHS ; ENERGY ; HOLES ; PROPAGATION ; PHOTOSPHERE ; SIMULATION ; GENERATION ; FIELDS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000363513800016
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16029
Collection太阳和太阳系等离子体研究团组
Affiliation1.Chinese Acad Sci, Key Lab Planetary Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
3.Belgian Inst Space Aeron, Space Phys Div, Solar Terr Ctr Excellence, B-1180 Brussels, Belgium
4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210046, Jiangsu, Peoples R China
5.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210046, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhao, J. S.,Voitenko, Y.,Guo, Y.,et al. NONLINEAR DAMPING OF ALFVEN WAVES IN THE SOLAR CORONA BELOW 1.5 SOLAR RADII[J]. ASTROPHYSICAL JOURNAL,2015,811(2).
APA Zhao, J. S.,Voitenko, Y.,Guo, Y.,Su, J. T.,&Wu, D. J..(2015).NONLINEAR DAMPING OF ALFVEN WAVES IN THE SOLAR CORONA BELOW 1.5 SOLAR RADII.ASTROPHYSICAL JOURNAL,811(2).
MLA Zhao, J. S.,et al."NONLINEAR DAMPING OF ALFVEN WAVES IN THE SOLAR CORONA BELOW 1.5 SOLAR RADII".ASTROPHYSICAL JOURNAL 811.2(2015).
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