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首页> 外文期刊>Cosmic research >Thermal Structure of Dayside Plasmasphere According to the Data of Tail and Auroral Probes, and Magion-5 Satellite
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Thermal Structure of Dayside Plasmasphere According to the Data of Tail and Auroral Probes, and Magion-5 Satellite

机译：根据尾巴和极光探针以及Magion-5卫星的数据得出的白天等离子体层的热结构

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摘要

We consider the results of measurements of density and temperature of cold plasma in the dayside sector of the plasmasphere. The measurements were made by Interball-1 (Tail Probe) in November 1995, by lnterball-2 (Auroral Probe) in August 1996 (the periods close to the solar cycle minimum), and by the Magion-5 satellite in June 2000 (this period is close to the solar cycle maximum). It was shown by the measurements in the dayside sector of the plasmasphere that, contrary to expectations of model distributions of temperature in the plasmasphere , under quiet geomagnetic conditions the temperature of hydrogen ions of the cold plasma filling the plasmasphere was observed to increase at altitudes 5000 km < H < 10000 km. Its altitude gradient was equal to ～0.5 deg/km, the geomagnetic latitude being variable within the limits 10° < λ < 40°. The maximum values of temperature of protons, as measured by Tail Probe and Auroral Probe deep in the plasmasphere, were equal to ～4000-6000 K. According to the data obtained by the Magion-5 satellite in the depth of the plasmasphere, these temperatures varied within the limits 7500-8500 K. These results can be considered as some indication of a dependence of the plasmasphere thermal structure on the phase of the solar cycle. In the region 2.5 < L < 5 and at geomagnetic latitudes λ < 40°, drops of the ion temperature were regularly observed with values reaching ～2000 K.
机译：我们考虑等离子层白天扇区中冷等离子体的密度和温度的测量结果。测量是由1995年11月的Interball-1（尾巴探针），1996年8月的Interball-2（极光探针）（接近太阳周期最小值的周期）和2000年6月的Magion-5卫星进行的（周期接近太阳周期的最大值）。通过对等离子层白天区域的测量表明，与对等离子层温度模型分布的预期相反，在安静的地磁条件下，观察到填充等离子层的冷等离子的氢离子温度在海拔5000处升高km

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