Jupiter's magnetosphere and aurorae observed by the Juno spacecraft during its first polar orbits
Jupiter's magnetosphere and aurorae observed by the Juno spacecraft during its first polar orbits
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DOI：
10.1126/science.aam5928
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发表时间：
2017-05-26
期刊：
影响因子：
56.9
通讯作者：
Waite, J.
中科院分区：
文献类型：
--
作者：
Connerney, J. E. P.;Adriani, A.;Waite, J.
朱诺号航天器从两极上方的Vantage位置直接观测了木星的磁层和极光发射。朱诺号的捕获轨道跨越了从弓形激波到木星的木星磁层，提供了磁场、带电粒子和波动现象的背景，使朱诺号穿越了两极和木星危险的内部辐射带。朱诺号的高能粒子和等离子体探测器测量了在极地地区沉淀的电子，激发了强烈的极光，紫外和红外成像光谱仪同时观察到。朱诺号在辐射带最强烈的部分下方穿过，在最接近木星环的地方，在云顶上方约4000公里处通过，并记录了小粒子在穿越赤道时高速撞击的电子信号。
The Juno spacecraft acquired direct observations of the jovian magnetosphere and auroral emissions from a vantage point above the poles. Juno's capture orbit spanned the jovian magnetosphere from bow shock to the planet, providing magnetic field, charged particle, and wave phenomena context for Juno's passage over the poles and traverse of Jupiter's hazardous inner radiation belts. Juno's energetic particle and plasma detectors measured electrons precipitating in the polar regions, exciting intense aurorae, observed simultaneously by the ultraviolet and infrared imaging spectrographs. Juno transited beneath the most intense parts of the radiation belts, passed about 4000 kilometers above the cloud tops at closest approach, well inside the jovian rings, and recorded the electrical signatures of high-velocity impacts with small particles as it traversed the equator.