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Injection of a bubble into the inner magnetosphere

机译：将气泡注入内部磁层

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摘要

Magnetic reconnection in the magnetotail or other forms of current sheet disruption are believed to produce plasma bubbles, which consist of flux tubes that have lower entropy content PV5/3 than their surroundings. We present an initial Rice-Convection-Model-based simulation of the injection of a bubble into the inner magnetosphere and explore the consequences on ring current formation. As the bubble moves into the inner magnetosphere, region-1-sense Birkeland currents form along its eastward and westward edges while strong westward electric field and earthward flow form inside it; gradient/curvature drift causes it to drift westward. The simulations indicate that the presence of a bubble results in an increase in the peak particle pressure in the ring current region. Results are presented from several computer experiments to determine sensitivities to assumptions.
机译：据信磁尾或其他形式的电流片破坏中的磁重新连接会产生等离子气泡，该等离子气泡由具有比其周围环境低的熵含量PV5 / 3的通量管组成。我们提出了一个初步的基于水稻对流模型的模拟，将气泡注入内部磁层，并探讨了对环流形成的影响。当气泡移入内部磁层时，沿其东边和西边形成1区感性的伯克兰电流，而在其内部形成强的西向电场和地流。梯度/曲率漂移导致其向西漂移。模拟表明气泡的存在导致环电流区域中的峰值粒子压力增加。结果来自于一些计算机实验，以确定对假设的敏感性。

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