冥王星与柯伊伯带的形成与演化

Cuixiang Zhong
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引用次数: 0

摘要

:尽管冥王星被降级为矮行星,但人们仍然对它情有独钟。科学家们将美国国家航空航天局新视野号探测器对冥王星的观测与欧洲航天局罗塞塔号探测器对Churyumov Gerasimenko彗星的观测相结合,发现冥王星的氮丰度与大约10亿颗彗星的模式相匹配,这导致了冥王星由大约10亿颗彗星组成的理论。然而,他们不知道这些彗星究竟是何时何地起源的。通过研究彗星的起源和轨道,本文作者发现,凝结冥王星的物质主要是彗星和海王星喷出的尘埃,柯伊伯带天体是由海王星向其轨道外侧喷出的物质凝结而成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Formation and Evolution of Pluto and Kuiper Belt
: Despite Pluto’s demotion to dwarf planet status, people are still attached to it. Scientists combined observations of Pluto from NASA’s New Horizons probe with observations of comet Churyumov-Gerasimenko from the European Space Agency’s Rosetta probe and found that Pluto’s nitrogen abundance matched the pattern of about a billion comets, which led to the theory that Pluto is made of about a billion comets. Yet they don’t know exactly when or where these comets originated. By studying the origin and orbit of comets, the author of this paper found that the material that condensed Pluto was mainly comets and dust ejected by Neptune, and the Kuiper Belt objects were condensed by material ejected by Neptune toward the outer side of its orbit.
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