PMO OpenIR  > 太阳和太阳系等离子体研究团组
A study of the mechanism of acceleration of He-3 and heavy ions by Alfven turbulence in impulsive flares
Wu, GP; Wang, DY; Xu, AA; Tang, YH
2002-07-01
Source PublicationCHINESE ASTRONOMY AND ASTROPHYSICS
ISSN0275-1062
Volume26Issue:3Pages:301-307
AbstractPrompted by the observational result that in He-3-rich events the energetic He-3 and heavy ions exhibit similar power-law distributions, we study by means of numerical solution of Fokker-Planck equation, the characteristics of the evolution of the distribution of ions after they are accelerated by Alfven turbulence. The results of computation show that the plasma density in the source region of acceleration and the energy density of Alfven turbulence play the chief role in the energy spectrum of the particles. For a plasma density n = (0.1 - 1) 10(10) cm(-3) a magnetic field B = 50 - 100 G and a turbulence energy density 0.4-2 ergs cm(-3) the turbulent Alfven waves can accelerate He-3 and heavy ions to the order of magnitude of 10 MeV/nucleon then in about 1 second. The index of the energy spectrum is 2.0-3-5. The result of the theoretical calculation basically agrees with the observation.
KeywordHe-rich Event Turbulent Acceleration Energy Spectrum Of Particles
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordSOLAR PARTICLE EVENTS ; HE-3-RICH EVENTS ; HYDROGEN ; WAVES
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000177827900006
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/7788
Collection太阳和太阳系等离子体研究团组
Affiliation1.SE Univ, Dept Phys, Nanjing 210096, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
3.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China
Recommended Citation
GB/T 7714
Wu, GP,Wang, DY,Xu, AA,et al. A study of the mechanism of acceleration of He-3 and heavy ions by Alfven turbulence in impulsive flares[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2002,26(3):301-307.
APA Wu, GP,Wang, DY,Xu, AA,&Tang, YH.(2002).A study of the mechanism of acceleration of He-3 and heavy ions by Alfven turbulence in impulsive flares.CHINESE ASTRONOMY AND ASTROPHYSICS,26(3),301-307.
MLA Wu, GP,et al."A study of the mechanism of acceleration of He-3 and heavy ions by Alfven turbulence in impulsive flares".CHINESE ASTRONOMY AND ASTROPHYSICS 26.3(2002):301-307.
Files in This Item:
File Name/Size DocType Version Access License
2002046A study of th(491KB) 开放获取LicenseView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wu, GP]'s Articles
[Wang, DY]'s Articles
[Xu, AA]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wu, GP]'s Articles
[Wang, DY]'s Articles
[Xu, AA]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wu, GP]'s Articles
[Wang, DY]'s Articles
[Xu, AA]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2002046A study of the mechanism of acceleration of He-3 and heavy ions by Alfven turbulence in impulsive flares.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.