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Interactions between magnetosonic waves and ring current protons: Gyroaveraged test particle simulations

文献类型：期刊论文

作者Fu, Song1; Ni, Binbin1; Li, Jinxing2; Zhou, Chen1; Gu, Xudong1; Huang, Shiyong1; Zhang, Hui3; Ge, Yasong3; Cao, Xing1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2016-09-01
卷号121期号:9页码:8537-8553
关键词magnetosonic wave ring current proton test particle simulation cyclotron resonance transit time scattering
DOI10.1002/2016JA023117
文献子类Article
英文摘要Gyroaveraged test particle simulations are implemented to quantitatively investigate interactions between linearly polarized magnetosonic waves (i.e., equatorial noises) and ring current protons inside and outside the plasmasphere at L=4.5. For magnetosonic waves at the frequency of 33.3Hz (f(w)/f(cp)=6.4 at the magnetic equator, for L=4.5), it is found that wave-particle interactions at the resonance order corresponding to the lowest resonant proton energy (i.e., N=6) are dominant. The interactions at other resonance orders make much less contribution. Near the equatorial loss cone at L=4.5, magnetosonic waves produce strongest proton pitch angle diffusion at similar to 20keV inside the plasmasphere and at similar to 100keV outside the plasmasphere, respectively, reaching a rate above 10(-6)s(-1). The corresponding energy diffusion dominates over pitch angle diffusion at high pitch angles; therefore, magnetosonic waves are likely to accelerate protons at a few keV inside the plasmasphere and at similar to 10keV outside the plasmasphere. Due to the emission equatorial confinement, the effect of transit time scattering also occurs for interactions of magnetosonic waves with ring current protons and tends to be increasingly important outside the plasmasphere, which is consistent with previous studies on interactions of magnetosonic waves with radiation belt electrons.
WOS关键词RADIATION BELT ELECTRONS ; ION-CYCLOTRON WAVES ; QUASI-LINEAR DIFFUSION ; EQUATORIAL NOISE EMISSIONS ; DUCTED PLASMASPHERIC HISS ; SELF-CONSISTENT MODEL ; PITCH-ANGLE DIFFUSION ; VAN ALLEN PROBES ; SPATIOTEMPORAL VARIABILITY ; CLUSTER SPACECRAFT
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000385844000025
资助机构NSFC(41204120 ; NSFC(41204120 ; China Postdoctoral Science Foundation(2015M582265 ; China Postdoctoral Science Foundation(2015M582265 ; Fundamental Research Funds for the Central Universities(2042015kf0037) ; Fundamental Research Funds for the Central Universities(2042015kf0037) ; 41474141 ; 41474141 ; 2013M542051 ; 2013M542051 ; 41274171 ; 41274171 ; 2014T70732) ; 2014T70732) ; 41474144 ; 41474144 ; 41304130 ; 41304130 ; 41574160) ; 41574160) ; NSFC(41204120 ; NSFC(41204120 ; China Postdoctoral Science Foundation(2015M582265 ; China Postdoctoral Science Foundation(2015M582265 ; Fundamental Research Funds for the Central Universities(2042015kf0037) ; Fundamental Research Funds for the Central Universities(2042015kf0037) ; 41474141 ; 41474141 ; 2013M542051 ; 2013M542051 ; 41274171 ; 41274171 ; 2014T70732) ; 2014T70732) ; 41474144 ; 41474144 ; 41304130 ; 41304130 ; 41574160) ; 41574160)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53294]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位1.Wuhan Univ, Sch Elect Informat, Dept Space Phys, Wuhan, Peoples R China
2.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Fu, Song,Ni, Binbin,Li, Jinxing,et al. Interactions between magnetosonic waves and ring current protons: Gyroaveraged test particle simulations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2016,121(9):8537-8553.
APA Fu, Song.,Ni, Binbin.,Li, Jinxing.,Zhou, Chen.,Gu, Xudong.,...&Cao, Xing.(2016).Interactions between magnetosonic waves and ring current protons: Gyroaveraged test particle simulations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,121(9),8537-8553.
MLA Fu, Song,et al."Interactions between magnetosonic waves and ring current protons: Gyroaveraged test particle simulations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 121.9(2016):8537-8553.

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来源：地质与地球物理研究所

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