论文标题
天然气巨星的性质
The nature of gas giant planets
论文作者
论文摘要
在我们的太阳系中揭示气体巨型行星的真实本质是具有挑战性的。木星和土星的质量分别分别为318和95个地球质量。尽管它们主要由氢和氦气组成，但揭示其起源信息的较重元素的总质量和分布仍然未知。最近对木星和土星的重力场的准确测量以及对高压行星材料的行为的了解，使我们能够更好地限制其内部。木星和土星的更新结构模型表明，这两个行星都具有复杂的内饰，其中包括成分不均匀性，非偏爱区域和模糊内核。此外，很明显，木星和土星之间存在显着差异，每个巨型行星都是独一无二的。这对巨型系外行星的表征和我们将气态行星视为一类天文对象具有直接影响。在这篇综述中，我们总结了用于建模巨型行星内饰和巨型行星结构模型的最新发展的方法。
Revealing the true nature of the gas giant planets in our Solar System is challenging. The masses of Jupiter and Saturn are about 318 and 95 Earth masses, respectively. While they mostly consist of hydrogen and helium, the total mass and distribution of the heavier elements, which reveal information on their origin, are still unknown. Recent accurate measurements of the gravitational fields of Jupiter and Saturn together with knowledge of the behavior of planetary materials at high pressures allow us to better constrain their interiors. Updated structure models of Jupiter and Saturn suggest that both planets have complex interiors that include composition inhomogeneities, non-convective regions, and fuzzy cores. In addition, it is clear that there are significant differences between Jupiter and Saturn and that each giant planet is unique. This has direct implications for giant exoplanet characterization and for our understanding of gaseous planets as a class of astronomical objects. In this review we summarize the methods used to model giant planet interiors and recent developments in giant planet structure models.
