论文标题
寻找可居住外事物的目标列表
A target list for searching for habitable exomoons
论文作者
论文摘要
我们研究了旋转已知系外行星的假设月亮的宜居性。这项研究的重点是能够维持重要氛围的大型岩石外事物。为了确定它们的宜居性，我们计算出卫星中出现的恒星辐射和潮汐加热通量，作为能量预算的两个主要贡献者。我们使用失控的温室和最大温室通量极限作为可居住性的定义。对于每个系外行星，我们使用Monte Carlo方法对卫星和行星的物理和轨道参数的合理范围进行计算。我们计算每个行星的月球可居住性概率，这是导致可居住条件的研究案例的一部分。根据我们的结果，我们提供了一个目标清单，以观察已知的系外行星，其中前十名行星具有超过50 \％的机会，可以在稳定的轨道上托管可居住的月亮。两名特别有前途的候选者是Kepler-62〜F和Kepler-16〜B，两者都有已知的质量和半径。我们的目标清单可以帮助检测第一个可居住的外观。
We investigate the habitability of hypothethical moons orbiting known exoplanets. This study focuses on big, rocky exomoons that are capable of maintaining a significant atmosphere. To determine their habitability, we calculate the incident stellar radiation and the tidal heating flux arising in the moons as the two main contributors to the energy budget. We use the runaway greenhouse and the maximum greenhouse flux limits as a definition of habitability. For each exoplanet we run our calculations for plausible ranges of physical and orbital parameters for the moons and the planet using a Monte Carlo approach. We calculate the moon habitability probability for each planet which is the fraction of the investigated cases that lead to habitable conditions. Based on our results, we provide a target list for observations of known exoplanets of which the top 10 planets have more than 50\% chance for hosting habitable moons on stable orbits. Two especially promising candidates are Kepler-62~f and Kepler-16~b, both of them with known masses and radii. Our target list can help to detect the first habitable exomoon.
