探测冰巨人的内部：水的冲击压缩到700 GPa和3.8 g/ccm
Probing the interiors of the ice giants: Shock compression of water to 700 GPa and 3.8 g/ccm
摘要：
最近，已确认的太阳系外行星系的数量有了巨大的增加。我们对它们形成的理解与系外行星内部结构模型有关，这些模型依赖于轻元素和水等化合物的状态方程。在这里，我们提出了前所未有的准确性，水的冲击压缩数据表明水的状态方程中常用的行星建模显着高估的压缩性在行星内部的相关条件。此外，我们表明，在这些条件下，它的行为，包括反射率和等熵响应，是很好地描述了最近的第一性原理为基础的状态方程。这些发现主张将这种水模型用作海王星，天王星和“热海王星”系外行星的建模标准，并应提高我们对这些类型行星的理解。
英文摘要：
Recently there has been tremendous increase in the number of identified extra-solar planetary systems. Our understanding of their formation is tied to exoplanet internal structure models, which rely upon equations of state of light elements and compounds like water. Here we present shock compression data for water with unprecedented accuracy that shows water equations of state commonly used in planetary modeling significantly overestimate the compressibility at conditions relevant to planetary interiors. Furthermore, we show its behavior at these conditions, including reflectivity and isentropic response, is well described by a recent first-principles based equation of state. These findings advocate this water model be used as the standard for modeling Neptune, Uranus, and "hot Neptune" exoplanets, and should improve our understanding of these types of planets.
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。
