4.7 Article

Modons on tidally synchronized extrasolar planets

期刊

出版社

OXFORD UNIV PRESS
DOI: 10.1093/mnras/stab2809

关键词

hydrodynamics; turbulence; waves; methods: numerical; planets and satellites: atmospheres

资金

  1. UK's Science and Technology Facilities Council research studentship

向作者/读者索取更多资源

The study indicates that modons play a major role in the atmospheres of tidally synchronized extrasolar planets, altering flows and leading to recognizable weather patterns. On synchronized planets, large modons reach planetary-scale and exhibit quasi-periodic life-cycles.
We investigate modons on tidally synchronized extrasolar planet atmospheres. Modons are dynamic, coherent flow structures composed of a pair of storms with opposite signs of vorticity. Modons are important because they can divert flows and lead to recognizable weather patterns. On synchronized planets, powered by the intense irradiation from the host star, large modons reach planetary-scale in size and exhibit quasi-periodic life-cycles - chaotically moving around the planet, breaking and reforming many times over long durations (e.g. thousands of planet days). Additionally, the modons transport and mix planetary-scale patches of hot and cold air around the planet, leading to high-amplitude and quasi-periodic signatures in the disc-averaged temperature flux. Hence, they induce variations of the 'hotspot' longitude to either side of the planet's substellar point - consistent with observations at different epochs. The variability behaviour in our simulations broadly underscores the importance of accurately capturing vortex dynamics in extrasolar planet atmosphere modelling, particularly in understanding current observations.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据