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Two- and Three-dimensional Nonlinear Instabilities of Whistler Waves
Zhao, Jinsong1,2; Sun, Heyu1,3; Yu, Mingyoung4,5,6,7
2018-10-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume866Issue:2Pages:11
Abstract

Recently, two-dimensional (2D) nonlinear instabilities of whistler waves from resonant wave-wave interaction have gained much attention in numerical simulations as well as observations in space plasmas. In this paper, both 2D and three-dimensional (3D) nonlinear instabilities of whistler waves are investigated using electron magnetohydrodynamics (EMHD). It is found that decay instabilities can excite waves with a broadband wavenumber spectrum, including highly oblique propagating whistler waves. Whistler waves with lambda(e)k = 1 would excite counter-propagating whistler waves, and the wave with lambda(e)k not equal 1 can produce both co- and counter-propagating whistler waves, where lambda(e) is the electron inertial length and k is the wavenumber. Moreover, it is shown that 3D instabilities have similar nonlinear growth rate distributions as in 2D decay for the azimuthal wavelength much larger than lambda(e). These results suggest that nonlinear wave-wave interaction can play an important role in the scattering of whistler waves in the solar wind and the Earth's magnetosphere, and are also helpful for understanding nonlinear wave-wave interaction in the formation and development of EMHD turbulence.

Keywordinstabilities magnetohydrodynamics (MHD) waves
DOI10.3847/1538-4357/aae0f3
WOS KeywordELECTRON MAGNETOHYDRODYNAMICS ; PLASMAS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000448075500002
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/21216
Collection中国科学院紫金山天文台
Corresponding AuthorZhao, Jinsong
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
3.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
4.Shenzhen Technol Univ, Ctr Adv Mat Diagnost Technol, Shenzhen 518118, Peoples R China
5.Zhejiang Univ, Inst Fus Theory & Simulat, Hangzhou 310027, Zhejiang, Peoples R China
6.Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
7.Ruhr Univ, Inst Theoret Phys 1, D-44780 Bochum, Germany
Recommended Citation
GB/T 7714
Zhao, Jinsong,Sun, Heyu,Yu, Mingyoung. Two- and Three-dimensional Nonlinear Instabilities of Whistler Waves[J]. ASTROPHYSICAL JOURNAL,2018,866(2):11.
APA Zhao, Jinsong,Sun, Heyu,&Yu, Mingyoung.(2018).Two- and Three-dimensional Nonlinear Instabilities of Whistler Waves.ASTROPHYSICAL JOURNAL,866(2),11.
MLA Zhao, Jinsong,et al."Two- and Three-dimensional Nonlinear Instabilities of Whistler Waves".ASTROPHYSICAL JOURNAL 866.2(2018):11.
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