巨行星内部惰性气体的封存
Sequestration of noble gases in giant planet interiors
摘要：
伽利略号探测器显示，与原太阳值相比，木星的大气层中的氖严重耗尽。我们表明，通过从头计算模拟的氢和氦相之间的氖的分区，所观察到的耗尽可以解释由封存的氖到富氦液滴内的假设的氢氦不相容层的行星的内部。我们还表明，这种机制不会影响氩气，解释了观察到的缺乏这种气体的耗尽。这为木星的氢氦不相容性提供了强有力的间接证据。
英文摘要：
The Galileo probe showed that Jupiter's atmosphere is severely depleted in neon compared to protosolar values. We show, via ab initio simulations of the partitioning of neon between hydrogen and helium phases, that the observed depletion can be explained by the sequestration of neon into helium-rich droplets within the postulated hydrogen-helium immiscibility layer of the planet's interior. We also demonstrate that this mechanism will not affect argon, explaining the observed lack of depletion of this gas. This provides strong indirect evidence for hydrogen-helium immiscibility in Jupiter.
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