Ammonia abundance in Jupiter's atmosphere derived from the attenuation of the Galileo probe's radio signal
Ammonia abundance in Jupiter's atmosphere derived from the attenuation of the Galileo probe's radio signal
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木星大气中的氨丰度源自伽利略探测器无线电信号的衰减
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
S. Nandi
中科院分区：
文献类型：
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作者：
W. Folkner;R. Woo;S. Nandi
伽利略号探测器向轨道飞行器发出的无线电信号在下降过程中由于木星大气中的氨而衰减。从衰减测量中导出了氨含量随大气深度变化的分布图。当压力大于7巴时，氨的丰度上升到700±100 ppm的摩尔分数，大约是太阳氮丰度的4倍。
The radio signal from the Galileo probe to the orbiter experienced attenuation due to ammonia in Jupiter's atmosphere during the probe descent. A profile of the ammonia content as a function of depth in the atmosphere has been derived from the measurements of the attenuation. The derived ammonia abundance rises to a molar fraction of 700±100 parts per million for pressures greater than 7 bars, about 4 times that expected based on the solar abundance of nitrogen.