Molten iron in Earth-like exoplanet cores
Molten iron in Earth-like exoplanet cores
复制标题
类地系外行星核心中的熔铁
DOI：
10.1126/science.abn2051
复制
发表时间：
2022
期刊：
影响因子：
56.9
通讯作者：
Lin, Jung-Fu
中科院分区：
文献类型：
--
作者：
Zhang, Youjun;Lin, Jung-Fu
地球是宇宙中唯一已知的可居住行星，它有一个磁场，可以保护有机生命形式免受来自太阳和其他地方的有害辐射。这个磁场是由外核中的铁水搅动产生的。围绕其他恒星运行的系外行星的可居住性可以通过更好地了解它们的铁芯和磁场来收集。然而，比地球重得多的系外行星内部的极端压力和温度条件可能意味着它们的核心表现不同。在本期的第202页，Krauset等人使用强大的激光产生类似于这种“超级地球”核心内部的条件，并揭示即使在极端条件下，熔融铁也可以结晶，类似于地球外核底部的结晶。
Earth, the only known habitable planet in the Universe, has a magnetic field that shields organic life-forms from harmful radiation coming from the Sun and beyond. This magnetic field is generated by the churning of molten iron in its outer core. The habitability of exoplanets orbiting other stars could be gleaned through better understanding of their iron cores and magnetic fields . However, extreme pressure and temperature conditions inside exoplanets that are much heavier than Earth may mean that their cores behave differently. On page 202 of this issue, Krauset al.used a powerful laser to generate conditions similar to those inside the cores of such “super-Earths” and reveal that even under extreme conditions, molten iron can crystallize similarly to that found at the base of Earth’s outer core.
影响因子：
64.8
作者：
M. Mayor;C. Lovis;N. Santos
通讯作者：
N. Santos
火星核心的地震探测
影响因子：
56.9
作者：
S. Stähler;Amir Khan;W. Banerdt;P. Lognonné;D. Giardini;S. Ceylan;M. Drilleau;A. Duran;R. Garcia;Quancheng Huang;Doyeon Kim;V. Lekić;H. Samuel;M. Schimmel;N. Schmerr;D. Sollberger;É. Stutzmann;Zongbo Xu;D. Antonangeli;C. Charalambous;P. Davis;J. Irving;T. Kawamura;M. Knapmeyer;R. Maguire;A. Marusiak;M. Panning;C. Perrin;A. Plesa;A. Rivoldini;C. Schmelzbach;G. Zenhäusern;É. Beucler;J. Clinton;N. Dahmen;M. van Driel;T. Gudkova;A. Horleston;W. Pike;M. Plasman;S. Smrekar
通讯作者：
S. Smrekar