Transient electron precipitation during oscillatory BBF braking: THEMIS observations and theoretical estimates
作者： E. V. Panov , A. V. Artemyev , W. Baumjohann , R. Nakamura , V. Angelopoulos
DOI: 10.1002/JGRA.50203
关键词:
摘要: [1] We use Time History of Events and Macroscale Interactions during Substorms (THEMIS) data acquired on 17 March 2008 between 10:22 10:32 UT to study the mechanism transient electron injection into loss cone oscillatory bursty bulk flow (BBF) braking. During braking, regions piled-up magnetic fluxes are formed. Perpendicular anisotropy observed in these (presumably caused by betatron perpendicular heating) may be a free-energy source coexisting whistler waves. Parallel electrons with energies 1 5 keV disappear inside regions, auroral forms (both rather discrete arcs diffuse-like aurora around arcs) simultaneously ground all-sky imager at Fort Yukon. We quasi-linear theory resonant interaction waves also estimate effectiveness nonlinear capture strong suggest that is by: (1) scattering (2) parallel acceleration captured stronger
harvard.edu
archives-ouvertes.fr
sci-hub.se 参考文章(95)
V.Yu. Trakhtengerts, STATIONARY STATES OF THE EARTH'S OUTER RADIATION ZONE. Geomagn. Aeronomy (USSR) (Engl. Transl.), 6: 638-45 (1966).. ,(1966)
R. Nakamura, W. Baumjohann, C. Mouikis, L. M. Kistler, A. Runov, M. Volwerk, Y. Asano, Z. Vörös, T. L. Zhang, B. Klecker, H. Rème, A. Balogh, Spatial scale of high‐speed flows in the plasma sheet observed by Cluster Geophysical Research Letters. ,vol. 31, ,(2004) , 10.1029/2004GL019558
S. Ohtani, Y. Miyashita, H. Singer, T. Mukai, Tailward flows with positiveBZin the near-Earth plasma sheet Journal of Geophysical Research: Space Physics. ,vol. 114, pp. n/a- n/a ,(2009) , 10.1029/2009JA014159
A. Keiling, K. Shiokawa, V. Uritsky, V. Sergeev, E. Zesta, L. Kepko, N. Østgaard, Auroral Signatures of the Dynamic Plasma Sheet Auroral Phenomenology and Magnetospheric Processes: Earth and Other Planets. ,vol. 197, pp. 317- 335 ,(2012) , 10.1029/2012GM001231
E. V. Panov, V. A. Sergeev, P. L. Pritchett, F. V. Coroniti, R. Nakamura, W. Baumjohann, V. Angelopoulos, H. U. Auster, J. P. McFadden, Observations of kinetic ballooning/interchange instability signatures in the magnetotail Geophysical Research Letters. ,vol. 39, ,(2012) , 10.1029/2012GL051668
E. V. Panov, W. Baumjohann, R. Nakamura, O. Amm, M. V. Kubyshkina, K.-H. Glassmeier, J. M. Weygand, V. Angelopoulos, A. A. Petrukovich, V. A. Sergeev, Ionospheric response to oscillatory flow braking in the magnetotail Journal of Geophysical Research. ,vol. 118, pp. 1529- 1544 ,(2013) , 10.1002/JGRA.50190
O. Amm, K. Kauristie, IONOSPHERIC SIGNATURES OF BURSTY BULK FLOWS Surveys in Geophysics. ,vol. 23, pp. 1- 32 ,(2002) , 10.1023/A:1014871323023
Auroral Plasma Physics app. ,vol. 103, ,(2003) , 10.1007/978-94-007-1086-3
Huishan S Fu, Yuri V Khotyaintsev, Mats André, Andris Vaivads, Fermi and betatron acceleration of suprathermal electrons behind dipolarization fronts Geophysical Research Letters. ,vol. 38, ,(2011) , 10.1029/2011GL048528
E. V. Panov, R. Nakamura, W. Baumjohann, V. Angelopoulos, A. A. Petrukovich, A. Retinò, M. Volwerk, T. Takada, K.-H. Glassmeier, J. P. McFadden, D. Larson, Multiple overshoot and rebound of a bursty bulk flow Geophysical Research Letters. ,vol. 37, ,(2010) , 10.1029/2009GL041971