标题： 一种用于系外行星适居性的模糊多准则决策方法 显示英文标题

标题： A fuzzy Multi-Criteria Decision Making approach for Exo-Planetary Habitability

摘要： 如今，我们已经知道数千颗系外行星，其中一些可能适合生命存在。 下一代技术设施（例如JWST）具备分析系外行星大气的能力，但它们在能研究的目标数量方面也有局限。 因此，有必要对这些系外行星进行排名和优先排序，以寻找生物标志物。 一些涉及的标准，如干燥岩石行星与富含水的行星的适居潜力，或潜在锁定行星与潮汐锁定行星之间的比较，通常较为模糊，建议使用模糊集理论。 我们已将多准则决策方法与模糊逻辑相结合，即模糊参考理想法（FRIM），应用于这个问题。 我们基于一组标准（成分、大气、能量、潮汐锁定、行星类型和液态水），分析了TEPCat数据库中1798颗系外行星的适居潜力，从它们与唯一理想替代方案——地球的相似性角度进行分析。 我们的结果与概率指数SEPHI相比表明，无论技术难度如何，开普勒-442b、开普勒-062e/f和LHS_1140b是寻找生物标志物的最佳系外行星。 如果考虑到当前的技术可行性，最佳候选者是TRAPPIST-1e。 显示英文摘要

摘要： Nowadays, we know thousands of exoplanets, some of them potentially habitable. Next technological facilities (JWST, for example) have exoplanet atmosphere analysis capabilities, but they also have limits in terms of how many targets can be studied. Therefore, there is a need to rank and prioritize these exoplanets with the aim of searching for biomarkers. Some criteria involved, such as the habitability potential of a dry-rock planet versus a water-rich planet, or a potentially-locked planet versus a tidally-locked planet, are often vague and the use of the fuzzy set theory is advisable. We have applied a combination of Multi-Criteria Decision-Making methodologies with fuzzy logic, the Fuzzy Reference Ideal Method (FRIM), to this problem. We have analyzed the habitability potential of 1798 exoplanets from TEPCat database based on a set of criteria (composition, atmosphere, energy, tidal locking, type of planet and liquid water), in terms of their similarity to the only ideal alternative, The Earth. Our results, when compared with the probability index SEPHI, indicate that Kepler-442b, Kepler-062e/f, and LHS_1140b are the best exoplanets for searching for biomarkers, regardless its technical difficulty. If we take into account current technical feasibility, the best candidate is TRAPPIST-1e.