Observation of mass loading in the Io plasma torus
Observation of mass loading in the Io plasma torus
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Io 等离子体环中质量负载的观察
DOI：
10.1029/94gl00564
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发表时间：
1994
影响因子：
5.2
通讯作者：
M. Brown
中科院分区：
文献类型：
--
作者：
M. Brown
在七个月的53个夜晚的观测中获得的Io等离子体环的地面高分辨率发射光谱被用来测量环转速度和环带的可识别区域，这些区域因新的电离物质的质量负载而减慢。环面减慢的数量意味着2,000到3,000公斤秒^(−1)正在被环面电离。减速在木卫一的轨道上呈方位分布，这表明从木卫一发出的中性物质在木星周围的分布比目前认为的要均匀得多。
Ground‐based high‐resolution spectra of emission from the Io plasma torus obtained during 53 nights of observation over a seven month period are used to measure the torus rotation speed and discern regions of the torus that are slowed by mass loading of newly ionized materials. The amount of torus slowing implies that between 2000 and 3000 kg sec^(−1) are being ionized by the torus. The slowing is spread azimuthally throughout the orbit of Io, suggesting that neutral materials emanating from Io are distributed around Jupiter much more uniformly than currently believed.