AI 中文总结
本研究通过修改气候模型PLASIM，对潮汐锁定岩石系外行星的气候进行分类分析，揭示三种气候类型，发现眼球行星气候在宽压力范围内稳定，为未来宜居系外行星观测提供指导。
AI 中文摘要
围绕M型矮星运行的潮汐锁定系外行星是搜寻宜居世界的主要目标，但其复杂的气候动力学对传统宜居性模型构成挑战。我们采用最新的地球相似指数，对系外行星的液态水宜居性进行了均质化估算。我们修改了气候模型PLASIM，使其适用于不同参数范围内的潮汐锁定系外行星。我们系统地对潜在宜居系外行星进行分类和比较，并从《宜居世界目录》的保守样本中选出地球相似指数最高的行星，既对这些行星相互比较，也分析其随大气压力的变化情况。我们的分析揭示了三种主要气候类型：雪球行星、热行星和眼球行星——后者拥有温暖宜居的亚恒星区域，温度T>273K，且存在局地水文循环。尽管地表温度通常随压力升高而上升，但眼球行星的气候在较宽的压力范围内保持稳定。复杂的大气动力学主导着气候行为，这表明需要开展详细的气候模拟以指导未来观测。
英文摘要
Tidally locked exoplanets orbiting M dwarf stars are prime targets in the search for habitable worlds, yet their complex climate dynamics challenge conventional models of habitability. We homogeneously estimated the liquid-water habitability of exoplanets with the highest up-to-date Earth-similarity index. We modified the climate model PLASIM to apply it to tidally locked exoplanets across a range of parameters. We systematically classified and compared potentially habitable exoplanets and selected among the ones featuring the highest Earth-similarity index in the conservative sample of the Habitable Wolds Catalog, both relative to each other and as a function of atmospheric pressure. Our analysis revealed three main climate regimes: Snowball, Hot, and Eyeball planets-the latter having a warm and habitable substellar region with T > 273 K and a localized hydrological cycle. Although surface temperature generally increases with pressure, Eyeball planet climates remain stable in a wide pressure range. Complex atmospheric dynamics govern the behavior of the climate, highlighting the need for detailed climate simulations to guide future observations.
CommentsAccepted manuscript. 34 pages, 1 table, 9 figures
Journal refAstrobiology. 2026;0(0)
