Dipolarization fronts as a consequence of transient reconnection: In situ evidence
文献类型：期刊论文
| 作者 | Fu, H. S.; Cao, J. B.; Khotyaintsev, Yu. V.; Sitnov, M. I.; Runov, A.; Fu, S. Y.; Hamrin, M.; Andre, M.; Retino, A.; Ma, Y. D. |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 40期号:23页码:6023-6027 |
| 关键词 | dipolarization front unsteady reconnection ion diffusion region high-speed flow jet braking spontaneous formation |
| ISSN号 | 0094-8276 |
| 通讯作者 | Fu, HS (reprint author), Beihang Univ, Sch Astronaut, Space Sci Inst, 37 Xueyuan Rd, Beijing 100191, Peoples R China. |
| 英文摘要 | Dipolarization fronts (DFs) are frequently detected in the Earth's magnetotail from X-GSM=-30 R-E to X-GSM=-7 R-E. How these DFs are formed is still poorly understood. Three possible mechanisms have been suggested in previous simulations: (1) jet braking, (2) transient reconnection, and (3) spontaneous formation. Among these three mechanisms, the first has been verified by using spacecraft observation, while the second and third have not. In this study, we show Cluster observation of DFs inside reconnection diffusion region. This observation provides in situ evidence of the second mechanism: Transient reconnection can produce DFs. We suggest that the DFs detected in the near-Earth region (X-GSM>-10 R-E) are primarily attributed to jet braking, while the DFs detected in the mid- or far-tail region (X-GSM<-15 R-E) are primarily attributed to transient reconnection or spontaneous formation. In the jet-braking mechanism, the high-speed flow pushes the preexisting plasmas to produce the DF so that there is causality between high-speed flow and DF. In the transient-reconnection mechanism, there is no causality between high-speed flow and DF, because the frozen-in condition is violated. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/4974]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Fu, H. S.,Cao, J. B.,Khotyaintsev, Yu. V.,et al. Dipolarization fronts as a consequence of transient reconnection: In situ evidence[J]. GEOPHYSICAL RESEARCH LETTERS,2013,40(23):6023-6027. |
| APA | Fu, H. S..,Cao, J. B..,Khotyaintsev, Yu. V..,Sitnov, M. I..,Runov, A..,...&Huang, S. Y..(2013).Dipolarization fronts as a consequence of transient reconnection: In situ evidence.GEOPHYSICAL RESEARCH LETTERS,40(23),6023-6027. |
| MLA | Fu, H. S.,et al."Dipolarization fronts as a consequence of transient reconnection: In situ evidence".GEOPHYSICAL RESEARCH LETTERS 40.23(2013):6023-6027. |
入库方式： OAI收割
来源：国家空间科学中心
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