Distribution of energetic oxygen and hydrogen in the near-Earth plasma sheet

doi:10.1002/2014JA020882

CORC > 地质与地球物理研究所 > 中国科学院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

	Distribution of energetic oxygen and hydrogen in the near-Earth plasma sheet
	Kronberg, E. A.1; Grigorenko, E. E.2; Haaland, S. E.1,3; Daly, P. W.1; Delcourt, D. C.4; Luo, H.5; Kistler, L. M.6; Dandouras, I.7,8
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2015-05-01
卷号	120 期号:5 页码:3415-3431
DOI	10.1002/2014JA020882
文献子类	Article
英文摘要	The spatial distributions of different ion species are useful indicators for plasma sheet dynamics. In this statistical study based on 7 years of Cluster observations, we establish the spatial distributions of oxygen ions and protons at energies from 274 to 955 keV, depending on geomagnetic and solar wind (SW) conditions. Compared with protons, the distribution of energetic oxygen has stronger dawn-dusk asymmetry in response to changes in the geomagnetic activity. When the interplanetary magnetic field (IMF) is directed southward, the oxygen ions show significant acceleration in the tail plasma sheet. Changes in the SW dynamic pressure (P-dyn) affect the oxygen and proton intensities in the same way. The energetic protons show significant intensity increases at the near-Earth duskside during disturbed geomagnetic conditions, enhanced SW P-dyn, and southward IMF, implying there location of effective inductive acceleration mechanisms and a strong duskward drift due to the increase of the magnetic field gradient in the near-Earth tail. Higher losses of energetic ions are observed in the dayside plasma sheet under disturbed geomagnetic conditions and enhanced SW P-dyn. These observations are in agreement with theoretical models.
WOS关键词	INTERPLANETARY MAGNETIC-FIELD ; RING CURRENT ; INNER MAGNETOSPHERE ; ELECTRIC-FIELDS ; SOLAR-WIND ; O+ IONS ; MAGNETOTAIL ; CLUSTER ; ACCELERATION ; STORMS
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000357869600011
资助机构	Deutsches Zentrum fur Luft und Raumfahrt (DLR)(50 OC 1401) ; Deutsches Zentrum fur Luft und Raumfahrt (DLR)(50 OC 1401) ; Russian Scientific Foundation(14-12-00824) ; Russian Scientific Foundation(14-12-00824) ; Deutsches Zentrum fur Luft und Raumfahrt (DLR)(50 OC 1401) ; Deutsches Zentrum fur Luft und Raumfahrt (DLR)(50 OC 1401) ; Russian Scientific Foundation(14-12-00824) ; Russian Scientific Foundation(14-12-00824)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62321]
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.Max Planck Inst Solar Syst Res, Gottingen, Germany 2.Russian Acad Sci, Space Res Inst, Moscow, Russia 3.Univ Bergen, Dept Phys, Birkeland Ctr Space Sci, Bergen, Norway 4.Plasma Phys Lab, Palaiseau, France 5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Ionospher Environm, Beijing, Peoples R China 6.Univ New Hampshire, Ctr Space Sci, Dept Phys, Durham, NH 03824 USA 7.Univ Toulouse, UPS OMP, Inst Rech Astrophys & Planatol, UMR 5277, Toulouse, France 8.CNRS, IRAP, Toulouse, France
推荐引用方式 GB/T 7714	Kronberg, E. A.,Grigorenko, E. E.,Haaland, S. E.,et al. Distribution of energetic oxygen and hydrogen in the near-Earth plasma sheet[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2015,120(5):3415-3431.
APA	Kronberg, E. A..,Grigorenko, E. E..,Haaland, S. E..,Daly, P. W..,Delcourt, D. C..,...&Dandouras, I..(2015).Distribution of energetic oxygen and hydrogen in the near-Earth plasma sheet.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,120(5),3415-3431.
MLA	Kronberg, E. A.,et al."Distribution of energetic oxygen and hydrogen in the near-Earth plasma sheet".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 120.5(2015):3415-3431.