Parallel-propagating Waves and Instabilities in Plasmas with Streaming Proton and Alpha Particles

doi:10.3847/1538-4357/ab0896

	Parallel-propagating Waves and Instabilities in Plasmas with Streaming Proton and Alpha Particles
	Liu, Zhifeng 1,2; Zhao, Jinsong2 ; Sun, Heyu 2,3; Xiang, Liang 2,3; Liu, Wen 2,3; Lu, Jianyong 1; Zhou, Weican 1
刊名	ASTROPHYSICAL JOURNAL
	2019-04-01
卷号	874 期号:2 页码:18
关键词	instabilities plasmas waves
ISSN号	0004-637X
DOI	10.3847/1538-4357/ab0896
通讯作者	Zhao, Jinsong(js_zhao@pmo.ac.cn)
英文摘要	Streaming proton and alpha particles are permeating in the solar wind and solar atmosphere. These particles considerably affect the normal waves in electron-proton-alpha plasmas, especially inducing electrostatic and electromagnetic ion/ion beam instabilities. This paper gives a comprehensive investigation on stable and unstable parallel-propagating wave modes in plasmas with streaming proton and alpha particles. It illustrates that at a large beam velocity condition, the backward-propagating fast-magnetosonic/whistler wave (Alfven/proton-beam or Alfven/alpha beam mode wave) turns to forward propagation in the core proton rest frame, and couples with forward-propagating Alfven/alpha-cyclotron and alpha-cyclotron/proton-cyclotron waves (fast-magnetosonic/whistler wave), triggering Alfven/proton-cyclotron and fast-magnetosonic/whistler instabilities. Furthermore, as perpendicular thermal pressures of proton and alpha beams are larger than their parallel thermal pressures, several new electromagnetic instabilities arise in the case of the low ion streaming velocity, where both Alfven/protoncyclotron and fast-magnetosonic/whistler instabilities are stable. This paper also predicts the possible ion/ion electromagnetic instabilities in solar coronal holes, which can give a constraint on the ion differential drift velocity therein.
WOS关键词	ION-BEAM INSTABILITIES ; ELECTROMAGNETIC PROTON/PROTON INSTABILITIES ; WIND HELIUM ABUNDANCE ; SOLAR-WIND ; LOW-FREQUENCY ; ALFVEN WAVES ; ACCELERATION ; DRIVEN ; SPEED ; EXCITATION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000462885200010
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/24234]
专题	中国科学院紫金山天文台
通讯作者	Zhao, Jinsong
作者单位	1.Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Inst Space Weather, Nanjing 210044, Jiangsu, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China 3.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhifeng,Zhao, Jinsong,Sun, Heyu,et al. Parallel-propagating Waves and Instabilities in Plasmas with Streaming Proton and Alpha Particles[J]. ASTROPHYSICAL JOURNAL,2019,874(2):18.
APA	Liu, Zhifeng.,Zhao, Jinsong.,Sun, Heyu.,Xiang, Liang.,Liu, Wen.,...&Zhou, Weican.(2019).Parallel-propagating Waves and Instabilities in Plasmas with Streaming Proton and Alpha Particles.ASTROPHYSICAL JOURNAL,874(2),18.
MLA	Liu, Zhifeng,et al."Parallel-propagating Waves and Instabilities in Plasmas with Streaming Proton and Alpha Particles".ASTROPHYSICAL JOURNAL 874.2(2019):18.