No naked cores

IF 12.9 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Nature Astronomy Pub Date : 2024-11-11 DOI:10.1038/s41550-024-02427-0

Luca Maltagliati

引用次数: 0

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无裸芯

行星的元素组成通常与恒星的丰度有关，因为它们在形成过程中都来自同一个储层。然而，据估计有 10-15% 的岩石系外行星具有异常高的密度。作者建立了一个巨行星迭代分析模型，并计算了它演化成 "裸核 "的可能性。该行星具有完全分化的铁质内核和地幔，它们共同构成了剩余的岩质内核，并在大气层被侵蚀的同时经历了岩浆海洋阶段，还有一个氢/氦或水包层，分别模拟气态巨行星和冰态巨行星。该模型显示，在已知的12颗高密度岩石行星中，只有一颗（GJ 3929 b）成为巨行星压缩残核的概率高于20-30%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics

CiteScore

19.50

自引率

2.80%

发文量

252

期刊介绍： Nature Astronomy, the oldest science, has played a significant role in the history of Nature. Throughout the years, pioneering discoveries such as the first quasar, exoplanet, and understanding of spiral nebulae have been reported in the journal. With the introduction of Nature Astronomy, the field now receives expanded coverage, welcoming research in astronomy, astrophysics, and planetary science. The primary objective is to encourage closer collaboration among researchers in these related areas. Similar to other journals under the Nature brand, Nature Astronomy boasts a devoted team of professional editors, ensuring fairness and rigorous peer-review processes. The journal maintains high standards in copy-editing and production, ensuring timely publication and editorial independence. In addition to original research, Nature Astronomy publishes a wide range of content, including Comments, Reviews, News and Views, Features, and Correspondence. This diverse collection covers various disciplines within astronomy and includes contributions from a diverse range of voices.