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arXiv 1608.02685astro-ph.EP
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了解木星的内部

Understanding Jupiter's Interior

Burkhard Militzer, Francois Soubiran, Sean M. Wahl, William Hubbard

摘要:

本文概述了巨行星内部模型是如何构建的。我们回顾了过去的太空任务的测量结果,这些测量结果为木星的内部结构提供了限制。我们讨论了典型的三层内部模型,包括一个致密的中央核心和内部金属和外部分子氢氦层。这些模型在很大程度上依赖于氢和氦的实验、分析理论和第一原理计算机模拟,以了解它们在极端压力~10 Mbar和温度~ 10,000 K下的行为。我们回顾了木星模型中使用的各种状态方程,并将它们与冲击波实验进行了比较。我们讨论了氦雨,核心侵蚀和双扩散对流的可能性可能有重要的后果的结构和巨行星的演化。2016年7月,朱诺号宇宙飞船进入木星轨道,有望对引力场进行高精度测量,这将使我们能够比以往任何时候都更好地测试我们对气体巨星内部的理解。

英文摘要:

This article provides an overview of how models of giant planet interiors are constructed. We review measurements from past space missions that provide constraints for the interior structure of Jupiter. We discuss typical three-layer interior models that consist of a dense central core and an inner metallic and an outer molecular hydrogen-helium layer. These models rely heavily on experiments, analytical theory, and first-principle computer simulations of hydrogen and helium to understand their behavior up to the extreme pressures ~10 Mbar and temperatures ~10,000 K. We review the various equations of state used in Jupiter models and compare them with shock wave experiments. We discuss the possibility of helium rain, core erosion and double diffusive convection may have important consequences for the structure and evolution of giant planets. In July 2016 the Juno spacecraft entered orbit around Jupiter, promising high-precision measurements of the gravitational field that will allow us to test our understanding of gas giant interiors better than ever before.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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