Exoplanetary science continues to excite and surprise with its rich diversity. We discuss here some key aspects potentially influencing the range of exoplanetary terrestrial-type atmospheres which could exist in nature. We are motivated by newly emerging observations, refined approaches to address data degeneracies, improved theories for key processes affecting atmospheric evolution and a new generation of atmospheric models which couple physical processes from the deep interior through to the exosphere and consider the planetary-star system as a whole. Using the Solar System as our guide we first summarize the main processes which sculpt atmospheric evolution then discuss their potential interactions in the context of exoplanetary environments. We summarize key uncertainties and consider a diverse range of atmospheric compositions discussing their potential occurrence in an exoplanetary context.

中文翻译：

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低质量系外行星可能的大气多样性——一些核心方面

系外行星科学以其丰富的多样性继续令人兴奋和惊奇。我们在这里讨论了一些可能影响自然界中可能存在的系外行星类地大气范围的关键方面。我们受到新出现的观测结果、解决数据简并性的改进方法、影响大气演化的关键过程的改进理论以及新一代大气模型的推动，这些模型将物理过程从深部内部耦合到外层，并将行星-恒星系统视为整个。以太阳系为指导，我们首先总结塑造大气演化的主要过程，然后讨论它们在系外行星环境中的潜在相互作用。