微物理学在流浪星球上的应用

IF 14.3 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Nature Astronomy Pub Date : 2025-08-18 DOI:10.1038/s41550-025-02647-y

Luca Maltagliati

引用次数: 0

摘要

JWST上搭载的MIRI光谱仪对于研究系外行星上的云和雾霾的行为特别有用，这要归功于它能够以高灵敏度分辨10µm硅酸盐波段。Paul molli及其同事利用MIRI在一个孤独的行星质量物体的大气中寻找微物理的指纹。PSO J318.5-22是一颗自由漂浮的低质量褐矮星（8.3±0.5 mjp），比同光谱类型的天体温度低400 K。已知PSO J318.5-22具有非常多云的大气，作者使用JWST的全套光谱仪提取1至18 μ m的光谱，以表征这些云的组成和颗粒性质，如大小和结构。聚焦在10µm波段，他们发现它的形状可以用非晶的、非常小的（~40 nm）球形SiO颗粒来解释。通过辐射传输模型，作者还确定数据探测到1 - 10−4压力层，并且SiO云位于1毫巴，远高于预期。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Microphysics at work on a rogue planet

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

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.