Nonlinear Decay of Alfven Waves Driven by Interplaying Two- and Three-dimensional Nonlinear Interactions
文献类型：期刊论文
| 作者 | Zhao, J. S.1,2; Voitenko, Y.3; De Keyser, J.3; Wu, D. J.1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-04-10 |
| 卷号 | 857期号:1页码:12 |
| 关键词 | instabilities magnetohydrodynamics (MHD) plasmas solar wind waves |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aab555 |
| 英文摘要 | We study the decay of Alfven waves in the solar wind, accounting for the joint operation of two-dimensional (2D) scalar and three-dimensional (3D) vector nonlinear interactions between Alfven and slow waves. These interactions have previously been studied separately in long-and short-wavelength limits where they lead to 2D scalar and 3D vector decays, correspondingly. The joined action of the scalar and vector interactions shifts the transition between 2D and 3D decays to significantly smaller wavenumbers than was predicted by Zhao et al. who compared separate scalar and vector decays. In application to the broadband Alfven waves in the solar wind, this means that the vector nonlinear coupling dominates in the extended wavenumber range 5 x 10(-4) less than or similar to rho(i)k(0 perpendicular to) less than or similar to 1, where the decay is essentially 3D and nonlocal, generating product Alfven and slow waves around the ion gyroscale. Here.i is the ion gyroradius, and k(0 perpendicular to) is the pump Alfven wavenumber. It appears that, except for the smallest wavenumbers at and below rho(i)k(0 perpendicular to) similar to 10(-4) in Channel I, the nonlinear decay of magnetohydrodynamic Alfven waves propagating from the Sun is nonlocal and cannot generate counter-propagating Alfven waves with similar scales needed for the turbulent cascade. Evaluation of the nonlinear frequency shift shows that product Alfven waves can still be approximately described as normal Alfvenic eigenmodes. On the contrary, nonlinearly driven slow waves deviate considerably from normal modes and are therefore difficult to identify on the basis of their phase velocities and/or polarization. |
| WOS关键词 | FAST SOLAR-WIND ; PARAMETRIC DECAY ; FINITE-AMPLITUDE ; HYDROMAGNETIC-WAVES ; TURBULENCE ; INSTABILITY ; PHOTOSPHERE ; EVOLUTION ; ACCELERATION ; FLUCTUATIONS |
| 资助项目 | NSFC[11673069] ; NSFC[41531071] ; NSFC[11303099] ; NSF of Jiangsu Province[BK20161617] ; Belgian Science Policy Office[Prodex/Cluster PEA 90316] ; Belgian Science Policy Office[Prodex/THOR-CSW PEA 4000116805] ; IAP Programme project CHARM[P7/08] ; Youth Innovation Promotion Association CAS ; Key Laboratory of Solar Activity at NAO, CAS[KLSA201714] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000429836900007 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | NSFC ; NSFC ; NSF of Jiangsu Province ; NSF of Jiangsu Province ; Belgian Science Policy Office ; Belgian Science Policy Office ; IAP Programme project CHARM ; IAP Programme project CHARM ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Laboratory of Solar Activity at NAO, CAS ; Key Laboratory of Solar Activity at NAO, CAS ; NSFC ; NSFC ; NSF of Jiangsu Province ; NSF of Jiangsu Province ; Belgian Science Policy Office ; Belgian Science Policy Office ; IAP Programme project CHARM ; IAP Programme project CHARM ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Laboratory of Solar Activity at NAO, CAS ; Key Laboratory of Solar Activity at NAO, CAS ; NSFC ; NSFC ; NSF of Jiangsu Province ; NSF of Jiangsu Province ; Belgian Science Policy Office ; Belgian Science Policy Office ; IAP Programme project CHARM ; IAP Programme project CHARM ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Laboratory of Solar Activity at NAO, CAS ; Key Laboratory of Solar Activity at NAO, CAS ; NSFC ; NSFC ; NSF of Jiangsu Province ; NSF of Jiangsu Province ; Belgian Science Policy Office ; Belgian Science Policy Office ; IAP Programme project CHARM ; IAP Programme project CHARM ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Laboratory of Solar Activity at NAO, CAS ; Key Laboratory of Solar Activity at NAO, CAS |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/37172]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Zhao, J. S. |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China 2.Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China 3.Belgian Inst Space Aeron, Space Phys Div, Solar Terr Ctr Excellence, Ave Circulaire 3, B-1180 Brussels, Belgium |
| 推荐引用方式 GB/T 7714 | Zhao, J. S.,Voitenko, Y.,De Keyser, J.,et al. Nonlinear Decay of Alfven Waves Driven by Interplaying Two- and Three-dimensional Nonlinear Interactions[J]. ASTROPHYSICAL JOURNAL,2018,857(1):12. |
| APA | Zhao, J. S.,Voitenko, Y.,De Keyser, J.,&Wu, D. J..(2018).Nonlinear Decay of Alfven Waves Driven by Interplaying Two- and Three-dimensional Nonlinear Interactions.ASTROPHYSICAL JOURNAL,857(1),12. |
| MLA | Zhao, J. S.,et al."Nonlinear Decay of Alfven Waves Driven by Interplaying Two- and Three-dimensional Nonlinear Interactions".ASTROPHYSICAL JOURNAL 857.1(2018):12. |
入库方式： OAI收割
来源：国家天文台
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