EVIDENCE OF LANDAU AND CYCLOTRON RESONANCE BETWEEN PROTONS AND KINETIC   WAVES IN SOLAR WIND TURBULENCE

doi:10.1088/2041-8205/800/2/L31

CORC > 北京大学 > 地球与空间科学学院

	EVIDENCE OF LANDAU AND CYCLOTRON RESONANCE BETWEEN PROTONS AND KINETIC WAVES IN SOLAR WIND TURBULENCE
	He, Jiansen ; Wang, Linghua ; Tu, Chuanyi ; Marsch, Eckart ; Zong, Qiugang
刊名	astrophysical journal letters
	2015
关键词	diffusion solar wind turbulence waves VELOCITY-SPACE DIFFUSION MAGNETIC HELICITY ALFVEN-WAVE DISTRIBUTIONS PLASMA ANGLE FIELD FLUCTUATIONS SIMULATIONS
DOI	10.1088/2041-8205/800/2/L31
英文摘要	The wave-particle interaction processes occurring in the solar wind provide crucial information to understand the wave dissipation and simultaneous particle heating in plasma turbulence. One requires observations of both wave fluctuations and particle kinetics near the dissipation range, which have, however, not yet been analyzed simultaneously. Here we show new evidence of wave-particle interactions by combining the diagnosis of wave modes with the analysis of particle kinetics on the basis of measurements from the WIND spacecraft with a high cadence of about 3 s. Solar wind protons appear to be highly dynamic in their velocity distribution consisting of varying anisotropic core and beam components. The basic scenario of solar wind proton heating through wave-particle interaction is suggested to be the following. Left-handed cyclotron resonance occurs continuously, and is evident from the observed proton core velocity distribution and the concurrent quasi-parallel left-handed Alfven cyclotron waves. Landau and right-handed cyclotron resonances are persistent and indicated by the observed drifting anisotropic beam and the simultaneous quasi-perpendicular right-handed kinetic Alfven waves in a general sense. The persistence of non-gyrotropic proton distributions may cast new light on the nature of the interaction between particles and waves near and beyond the proton gyro-frequency.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349692900012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Astronomy & Astrophysics; SCI(E); 6; ARTICLE; jshept@gmail.com; 2; 800
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155334]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	He, Jiansen,Wang, Linghua,Tu, Chuanyi,et al. EVIDENCE OF LANDAU AND CYCLOTRON RESONANCE BETWEEN PROTONS AND KINETIC WAVES IN SOLAR WIND TURBULENCE[J]. astrophysical journal letters,2015.
APA	He, Jiansen,Wang, Linghua,Tu, Chuanyi,Marsch, Eckart,&Zong, Qiugang.(2015).EVIDENCE OF LANDAU AND CYCLOTRON RESONANCE BETWEEN PROTONS AND KINETIC WAVES IN SOLAR WIND TURBULENCE.astrophysical journal letters.
MLA	He, Jiansen,et al."EVIDENCE OF LANDAU AND CYCLOTRON RESONANCE BETWEEN PROTONS AND KINETIC WAVES IN SOLAR WIND TURBULENCE".astrophysical journal letters (2015).