论文标题
天王星和海王星的深层组成，来自原位探索和热化学建模
The deep composition of Uranus and Neptune from in situ exploration and thermochemical modeling
论文作者
论文摘要
太阳系，天王星和海王星的遥远的冰巨头只有一个太空任务，Voyager 2才访问了。然而，更好地表征其组成对于约束其形成和进化至关重要，因为它们的质量很大一部分是由沉重的元素组成的，与气体巨头木星和土星相反。像伽利略这样的原位探测器将为我们提供宝贵的直接地面真相组成测量。但是，某些浓缩物将留在浅探针的掌握中。虽然可以从互补的轨道器获得其他约束，但是热化学和扩散建模可以进一步帮助我们增加原位探针的科学回报。
The distant ice giants of the Solar System, Uranus and Neptune, have only been visited by one space mission, Voyager 2. The current knowledge on their composition remains very limited despite some recent advances. A better characterization of their composition is however essential to constrain their formation and evolution, as a significant fraction of their mass is made of heavy elements, contrary to the gas giants Jupiter and Saturn. An in situ probe like Galileo would provide us with invaluable direct ground-truth composition measurements. However, some of the condensibles will remain out of the grasp of a shallow probe. While additional constraints could be obtained from a complementary orbiter, thermochemistry and diffusion modeling can further help us to increase the science return of an in situ probe.
