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Effects of inelastic collisions on Alfven waves in partially ionized plasmas
Li, Bing1,2; Chen, Ling1; Wu, Dejin1
2014-03-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume59Issue:8Pages:740-746
AbstractBased on a three-component description of partially ionized plasmas (i.e., electrons, ions, and neutral atoms), effects of inelastic collisions between ions (neutrals) and electrons on Alfv,n waves (AWs) in a partially ionized plasma are studied. It is shown that for a fixed ionizability () or a fixed inelastic collision parameter (chi, i.e., the ratio of the inelastic to elastic collision frequency), the damping rate of AWs has a peak value round k (z) v (A)/nu (in) 1, where k (z) is the parallel wavenumber of AWs, v (A) is the Alfv,n velocity, and nu (in) is the elastic collision frequency between ions and neutrals. On the other hand, the damping rate of AWs decreases monotonously with the ionizability for a fixed inelastic collision parameter, but has a peak value when the inelastic collision parameter varies for sufficiently small ionizability (). For sufficiently large ionizability (), it is found that the damping rate decreases with the inelastic collision parameter. The results may help us to understand the physics of AWs in partially ionized plasmas.
KeywordPartially Ionized Plasmas Inelastic Collision Alfven Waves Damping
WOS HeadingsScience & Technology
DOI10.1007/s11434-013-0021-8
WOS KeywordRADIATIVE RECOMBINATION ; PROMINENCE PLASMA ; FLUID EQUATIONS ; MHD WAVES ; IONS ; COEFFICIENTS
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Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000331564100005
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10667
Collection盱眙天文观测站
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Bing,Chen, Ling,Wu, Dejin. Effects of inelastic collisions on Alfven waves in partially ionized plasmas[J]. CHINESE SCIENCE BULLETIN,2014,59(8):740-746.
APA Li, Bing,Chen, Ling,&Wu, Dejin.(2014).Effects of inelastic collisions on Alfven waves in partially ionized plasmas.CHINESE SCIENCE BULLETIN,59(8),740-746.
MLA Li, Bing,et al."Effects of inelastic collisions on Alfven waves in partially ionized plasmas".CHINESE SCIENCE BULLETIN 59.8(2014):740-746.
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