Fast acceleration of inner magnetospheric hydrogen and oxygen ions by shock induced ULF waves

doi:10.1029/2012JA018024

IGGCAS OpenIR

	Fast acceleration of inner magnetospheric hydrogen and oxygen ions by shock induced ULF waves
	Zong, Q. -G.1; Wang, Y. F.1; Zhang, H.2,3; Fu, S. Y.1; Zhang, H.4; Wang, C. R.1; Yuan, C. J.1; Vogiatzis, I.1
	2012-11-14
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN	0148-0227
卷号	117
文章类型	Article
摘要	The interaction between interplanetary shocks and the Earth's magnetosphere manifests in many important space physics phenomena including particle acceleration. We investigated the response of the inner magnetospheric hydrogen and oxygen ions to a strong interplanetary shock impinging on the Earth's magnetosphere. Both hydrogen and oxygen ions are found to be heated/accelerated significantly with their temperature enhanced by a factor of two and three immediately after similar to 1 min and similar to 12 min of the shock arrival respectively. Multiple energy dispersion signatures of ions were found in the parallel and anti-parallel direction to the magnetic field immediately after the interplanetary shock impact. The energy dispersions in the anti-parallel direction preceded those in the parallel direction. Multiple dispersion signatures can be explained by the flux modulations of local ions (rather than the ions from the Earth's ionosphere) by ULF waves. It is found that the energy spectrum from 10 eV to similar to 40 keV are highly correlated with the cross product of observed ULF wave electric and magnetic field (V = (E x B)/B-2), which indicate that both cold plasmaspheric plasma and hot thermal ions (10 eV to similar to 40 keV) are accelerated and decelerated with the various phases of ULF wave electric field. We then demonstrate that ion acceleration due to the interplanetary shock compression on the Earth's magnetic field is rather limited, whereas the major contribution to acceleration comes from the electric field carried by ULF waves via drift-bounce resonance for both the hydrogen and oxygen ions. The integrated hydrogen and oxygen ion flux with the poloidal mode ULF waves are highly coherent (>0.9) whereas the coherence with the toroidal mode ULF waves is negligible, implying that the poloidal mode ULF waves are much more efficient in accelerating hydrogen and oxygen ions in the inner magnetosphere than the toroidal mode ULF waves. The duration of high coherence for oxygen ions with the poloidal mode ULF wave is longer than that for hydrogen ions, indicating that oxygen ions can be heated/accelerated more efficiently by the poloidal mode ULF wave induced by the interplanetary shock.
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1029/2012JA018024
资助者	Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579)
关键词[WOS]	FREQUENCY GEOMAGNETIC-PULSATIONS ; STORM SUDDEN COMMENCEMENTS ; CHARGED-PARTICLE BEHAVIOR ; ELECTRON-SCATTERING LOSS ; RADIATION BELT ; SOLAR-WIND ; RELATIVISTIC ELECTRONS ; MAGNETIC-FIELD ; INTERPLANETARY SHOCK ; DRIFT ECHOES
收录类别	SCI
语种	英语
资助者	Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; Major Project of Chinese National Programs for Fundamental Research and Development(2012CB825603) ; National Natural Science Foundation of China(41074117 ; National Natural Science Foundation of China(41074117 ; 41031065 ; 41031065 ; 41150110579) ; 41150110579)
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:000311251900005
出版者	AMER GEOPHYSICAL UNION
引用统计
文献类型	期刊论文
条目标识符	http://ir.iggcas.ac.cn/handle/132A11/84233
专题	中国科学院地质与地球物理研究所
通讯作者	Zong, Q. -G.
作者单位	1.Peking Univ, Inst Space Phys & Appl Technol, Beijing 100871, Peoples R China 2.Univ Alaska Fairbanks, Dept Phys, Fairbanks, AK USA 3.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zong, Q. -G.,Wang, Y. F.,Zhang, H.,et al. Fast acceleration of inner magnetospheric hydrogen and oxygen ions by shock induced ULF waves[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2012,117.
APA	Zong, Q. -G..,Wang, Y. F..,Zhang, H..,Fu, S. Y..,Zhang, H..,...&Vogiatzis, I..(2012).Fast acceleration of inner magnetospheric hydrogen and oxygen ions by shock induced ULF waves.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,117.
MLA	Zong, Q. -G.,et al."Fast acceleration of inner magnetospheric hydrogen and oxygen ions by shock induced ULF waves".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 117(2012).