论文标题
近潮汐地球大小的星球的大气动力学
Atmospheric Dynamics of a Near Tidally Locked Earth-Size Planet
论文作者
论文摘要
在潮汐状态或近乎附近的地球大小行星的发现和表征对于理解陆地行星的进化至关重要，而金星对此是明显的类似物。系外科科学在于表征数百种地面行星气氛的门槛，从而提供统计样本远大于太阳系内陆地行星气氛的有限库存。但是，基于模型的表征系外行星大气的方法取决于太阳系数据，从而导致我们有限的库存既是基础和关键的大气实验室。当前的陆地系外行星人口统计学对短期行星有很大的偏见，预计其中许多人将被潮汐锁定，并且可能是与金星类似的失控温室候选人。在这里，我们描述了地面系外行星种群的增加以及对气候模拟的潮汐锁定的研究。这些系外行星的研究位于维纳斯的背景下，金星是一个局部大小的异步旋转器的局部例子，该旋转器接近潮汐锁定极限。我们描述了有关金星氛围动态的最新经验教训，以及这些教训与我们同胞星球的演变有关。我们讨论了这些课程对系外行星气氛的含义，并概述了对维纳斯气候的充分表征，以实现对地面行星气氛的全面解释。
The discovery and characterization of Earth-sized planets that are in, or near, a tidally-locked state are of crucial importance to understanding terrestrial planet evolution, and for which Venus is a clear analog. Exoplanetary science lies at the threshold of characterizing hundreds of terrestrial planetary atmospheres, thereby providing a statistical sample far greater than the limited inventory of terrestrial planetary atmospheres within the Solar System. However, the model-based approach for characterizing exoplanet atmospheres relies on Solar System data, resulting in our limited inventory being both foundational and critical atmospheric laboratories. Present terrestrial exoplanet demographics are heavily biased toward short-period planets, many of which are expected to be tidally locked, and also potentially runaway greenhouse candidates, similar to Venus. Here we describe the rise in the terrestrial exoplanet population and the study of tidal locking on climate simulations. These exoplanet studies are placed within the context of Venus, a local example of an Earth-sized, asynchronous rotator that is near the tidal locking limit. We describe the recent lessons learned regarding the dynamics of the Venusian atmosphere and how those lessons pertain to the evolution of our sibling planet. We discuss the implications of these lessons for exoplanet atmospheres, and outline the need for a full characterization of the Venusian climate in order to achieve a full and robust interpretation of terrestrial planetary atmospheres.
