Oxygen Ions O+ Energized by Kinetic Alfvén Eigenmode During Dipolarizations of Intense Substorms
作者： Suping Duan , Lei Dai , Chi Wang , Zhaohai He , Chunlin Cai
DOI: 10.1002/2017JA024418
关键词:
摘要: Singly charged oxygen ions, O+, energized by kinetic Alfven wave eigenmode (KAWE) in the plasma sheet boundary layer during dipolarizations of two intense substorms,10:07 UT on 31 August 2004 and 18:24 14 September 2004, are investigated Cluster spacecraft magnetotail. It is found that after beginning expansion phase substorms, O+ ions clearly direction perpendicular to magnetic field with energy larger than 1 keV near-Earth (NEPS) dipolarizations. The pitch angle distribution these energetic significantly different from less before substorm onset which quasi-parallel along field. KAWE large unipolar electric field, Ez ~ -20 mV/m, accelerate background We present good evidences origin ionosphere line northward lobe can be accelerated change move useful for transferring into central Thus play an important role transfer process substorms.
harvard.edu
sci-hub.se 参考文章(63)
J.-A. Sauvaud, C. Jacquey, M. Oka, L. Palin, G. Fruit, L. M. Kistler, A. Balogh, J. B. Cao, G. Reeves, T. Mukai, I. Shinohara, E. Grigorenko, A study of the changes of the near-Earth plasma sheet and lobe driven by multiple substorms: Comparison with a full particle simulation of reconnection Journal of Geophysical Research. ,vol. 117, ,(2012) , 10.1029/2011JA017033
T Lindstedt, Yuri V Khotyaintsev, Andris Vaivads, Mats André, H Nilsson, Martin Waara, Oxygen energization by localized perpendicular electric fields at the cusp boundary Geophysical Research Letters. ,vol. 37, ,(2010) , 10.1029/2010GL043117
J. Liao, L. M. Kistler, C. G. Mouikis, B. Klecker, I. Dandouras, Acceleration of O+ from the cusp to the plasma sheet Journal of Geophysical Research. ,vol. 120, pp. 1022- 1034 ,(2015) , 10.1002/2014JA020341
The Cluster active archive : studying the Earth's space plasma environment Astrophysics and Space Science Proceedings. ,vol. 11, ,(2010) , 10.1007/978-90-481-3499-1
A. W. Yau, M. André, Sources of Ion Outflow in the High Latitude Ionosphere Transport Across the Boundaries of the Magnetosphere. ,vol. 80, pp. 1- 25 ,(1997) , 10.1007/978-94-009-0045-5_1
Kunihiro Keika, Lynn M. Kistler, Pontus C. Brandt, Energization of O + ions in the Earth's inner magnetosphere and the effects on ring current buildup: A review of previous observations and possible mechanisms Journal of Geophysical Research. ,vol. 118, pp. 4441- 4464 ,(2013) , 10.1002/JGRA.50371
Daniel T. Welling, Mats André, Iannis Dandouras, Dominique Delcourt, Andrew Fazakerley, Dominique Fontaine, John Foster, Raluca Ilie, Lynn Kistler, Justin H. Lee, Michael W. Liemohn, James A. Slavin, Chih-Ping Wang, Michael Wiltberger, Andrew Yau, The Earth: Plasma Sources, Losses, and Transport Processes Space Science Reviews. ,vol. 192, pp. 145- 208 ,(2015) , 10.1007/S11214-015-0187-2
R. Maggiolo, L. M. Kistler, Spatial variation in the plasma sheet composition: Dependence on geomagnetic and solar activity Journal of Geophysical Research. ,vol. 119, pp. 2836- 2857 ,(2014) , 10.1002/2013JA019517
L. Chen, D. J. Wu, J. Huang, Kinetic Alfvén wave instability driven by field-aligned currents in a low-β plasma Journal of Geophysical Research. ,vol. 118, pp. 2951- 2957 ,(2013) , 10.1002/JGRA.50332
Lei Dai, Chi Wang, Suping Duan, Zhaohai He, John R. Wygant, Cynthia A. Cattell, Xin Tao, Zhenpeng Su, Craig Kletzing, Daniel N. Baker, Xinlin Li, David Malaspina, J. Bernard Blake, Joseph Fennell, Seth Claudepierre, Drew L. Turner, Geoffrey D. Reeves, Herbert O. Funsten, Harlan E. Spence, Vassilis Angelopoulos, Dennis Fruehauff, Lunjin Chen, Scott Thaller, Aaron Breneman, Xiangwei Tang, Near-Earth injection of MeV electrons associated with intense dipolarization electric fields: Van Allen Probes observations. Geophysical Research Letters. ,vol. 42, pp. 6170- 6179 ,(2015) , 10.1002/2015GL064955