Resonant wave-particle interactions modified by intrinsic Alfvenic turbulence

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 太阳和太阳系等离子体研究团组

	Resonant wave-particle interactions modified by intrinsic Alfvenic turbulence
	Wu, C. S.1,4; Wang, C. B.2; Wu, D. J.3; Lee, K. H.1
刊名	PHYSICS OF PLASMAS
	2012-08-01
卷号	19 期号:8 页码:082902
ISSN号	1070-664X
英文摘要	The concept of wave-particle interactions via resonance is well discussed in plasma physics. This paper shows that intrinsic Alfven waves can qualitatively modify the physics discussed in conventional linear plasma kinetic theories. It turns out that preexisting Alfven waves can affect particle motion along the ambient magnetic field and, moreover, the ensuing force field is periodic in time. As a result, the meaning of the usual Landau and cyclotron resonance conditions becomes questionable. It turns out that this effect leads us to find a new electromagnetic instability. In such a process intrinsic Alfven waves not only modify the unperturbed distribution function but also result in a different type of cyclotron resonance which is affected by the level of turbulence. This instability might enable us to better our understanding of the observed radio emission processes in the solar atmosphere. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4742989]
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Fluids & Plasmas
研究领域[WOS]	Physics
关键词[WOS]	SOLAR-WIND
收录类别	SCI
语种	英语
WOS记录号	WOS:000309252500072
公开日期	2013-01-31
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/8052]
专题	紫金山天文台_太阳和太阳系等离子体研究团组
作者单位	1.Natl Cent Univ, Inst Space Sci, Zhongli, Taiwan 2.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Nanjing, Jiangsu, Peoples R China 4.Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA
推荐引用方式 GB/T 7714	Wu, C. S.,Wang, C. B.,Wu, D. J.,et al. Resonant wave-particle interactions modified by intrinsic Alfvenic turbulence[J]. PHYSICS OF PLASMAS,2012,19(8):082902.
APA	Wu, C. S.,Wang, C. B.,Wu, D. J.,&Lee, K. H..(2012).Resonant wave-particle interactions modified by intrinsic Alfvenic turbulence.PHYSICS OF PLASMAS,19(8),082902.
MLA	Wu, C. S.,et al."Resonant wave-particle interactions modified by intrinsic Alfvenic turbulence".PHYSICS OF PLASMAS 19.8(2012):082902.