PMO OpenIR  > 太阳活动的多波段观测研究团组
On the envelope soliton below the H+ gyrofrequency in low auroral region
Wang, DY; Huang, GL; Falthammar, CG
2002
发表期刊ASTROPHYSICS AND SPACE SCIENCE
卷号282期号:2页码:421-432
摘要Two envelope soliton events below the H+ gyrofrequency with localized density depletion were discovered in low auroral region (similar to 1760 km) by Freja satellite. These events were correlated in time with the observations of the ratio of oxygen ion density to hydrogen ion density sharp increase and the electrons energization. These envelope solitons have a characteristic frequency at similar to180-190 Hz, which are obviously different from the electron-ion lower hybrid wave frequency and the helium ion gyrofrequency in low auroral plasma, but it is close to the resonance frequency of hydrogen ion-oxygen ion hybrid wave. A modulational instability model of an ion-ion hybrid wave has been discussed here. It is found that the envelope soliton below the H+ gyrofrequency in low auroral region may be generated by this modulational instability on condition that the local oxygen ion density is larger than the local hydrogen ion density.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]LOWER-HYBRID WAVES ; FREJA OBSERVATIONS ; ION-ACCELERATION ; ELECTRON-PRECIPITATION ; ELF WAVES ; PLASMA ; IONOSPHERE
收录类别SCI
语种英语
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000178929400006
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/15796
专题太阳活动的多波段观测研究团组
作者单位1.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Royal Inst Technol, Alfven Lab, S-10044 Stockholm, Sweden
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Wang, DY,Huang, GL,Falthammar, CG. On the envelope soliton below the H+ gyrofrequency in low auroral region[J]. ASTROPHYSICS AND SPACE SCIENCE,2002,282(2):421-432.
APA Wang, DY,Huang, GL,&Falthammar, CG.(2002).On the envelope soliton below the H+ gyrofrequency in low auroral region.ASTROPHYSICS AND SPACE SCIENCE,282(2),421-432.
MLA Wang, DY,et al."On the envelope soliton below the H+ gyrofrequency in low auroral region".ASTROPHYSICS AND SPACE SCIENCE 282.2(2002):421-432.
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