Narrow Plasma Streams as a Candidate to Populate the Inner Magnetosphere
Narrow Plasma Streams as a Candidate to Populate the Inner Magnetosphere
复制标题
窄等离子体流作为填充内磁层的候选者
DOI：
10.1029/155gm07
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
G. Reeves
中科院分区：
文献类型：
--
作者：
V. Sergeev;D. A. Yahnin;K. Liou;M. Thomsen;G. Reeves
Long-duration periods with southward IMF often display a wealth of the fast bursty flows (BBFs) in the plasma sheet, part of them are visible as the auroral streamers and therefore could be monitored by optical means. For couple dozen isolated streamers we confirm statistically the spatial-temporal association of streamer intrusions with the plasma injections to the geostationary orbit. Also, for one long active period with many streamers monitored by Polar UV imager we show that the streamers end their development forming the bright spot in the equatorward oval which continues to exist for several tens minutes drifting eastward and westward as dictated by the convection flow. These results imply that during active times considerable amount of energetic plasma is injected into the inner magnetosphere with the bursty bulk flows. This can have important implications, particularly, for pumping fresh energetic particle population into the radiation belt.
