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Temporal variation of the distribution function and acceleration of O+ ions during substorm dipolarization
Shi, J. K.; Liu, Z. X.; Torkar, K.; Zhang, T.; Schwingenschuh, K.; Guo, J. S.; Riedler, W.; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationAdvances in Space Research
2002
Pages2329-2334
Language英语
ISSN0273-1177
AbstractBy using Vlasov's Equation, the temporal variation of the distribution function of O+ ions and the acceleration of the ions during dipolarization in a substorm in the magnetotail are simulated. The main results show that: (1) the ion distribution function which is initially exponentially decreasing with increasing velocity becomes a single peak distribution, and with time the peak moves towards higher velocity; (2) the peak moves faster along the perpendicular direction than along the parallel direction; (3) the ion acceleration occurs mainly in the middle period of the dipolarization; (4) the higher the initial energy, the faster the peak moves, and the more energy is obtained by the ions, (5) during the dipolarization, the ions move as an Earthward flow and their energy can reach an order of magnitude of 10(2) keV, which is consistent with some observations. (C) 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
Conference NameD3 3 Symposium of COSPAR Scientific Commission D held at the 33rd COSPAR Scientific Assembly
Conference Date2002
Conference PlaceWarsaw, Poland
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/940
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Shi, J. K.,Liu, Z. X.,Torkar, K.,et al. Temporal variation of the distribution function and acceleration of O+ ions during substorm dipolarization[C]. OXFORD:Pergamon-Elsevier Science Ltd,2002:2329-2334.
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