论文标题
在苔丝目标的水圈稳定性上：应用到700 d，256 b和203 b
On The Hydrosphere Stability of TESS Targets: Applications to 700 d, 256 b, and 203 b
论文作者
论文摘要
外部行星可居住性的主要决定因素是存在稳定的液体地表水。在一个可能的目标时代，找到可居住世界的潜力仍然是优先级的驱动力。我们在这里提出了一种数据向前的方法，以研究生命形成，1 Gyr及以后的时间尺度上稳定的水圈的可能性。作为我们的主要应用，我们使用这种方法来检查感兴趣的苔丝对象的潜在水圈700 d，256 b和203 b。我们首先介绍了我们的选择标准，该标准基于地球相似性指数的实施，以及对目标干燥的初步研究的结果，该结果揭示了TOI 203 B几乎可以肯定基于苔丝观察结果进行了干燥。然后，我们描述了来自2Mass，Gaia和Tess数据的其余靶标及其宿主星的表征，以及其参数的采样概率分布的推导。在此之后，我们描述了使用虚拟行星模拟器Vplanet模拟目标水上圈干燥的过程，其输入直接链接到先前衍生的概率分布。我们发现，TOI 700 d的可能病例中有50.86％是干燥的，没有对TOI 256 B的建模病例没有水。此外，我们计算目标的剩余水清单，继续流失的案件的百分比以及这些案件流失水的比率。
A main determinant of the habitability of exoplanets is the presence of stable liquid surface water. In an era of abundant possible targets, the potential to find a habitable world remains a driving force in prioritization. We present here a data-forward method to investigate the likelihood of a stable hydrosphere on the timescales of the formation of life, 1 Gyr, and beyond. As our primary application, we use this method to examine the potential hydrospheres of TESS Objects of Interest 700 d, 256 b, and 203 b. We first present our selection criteria, which is based on an implementation of the Earth Similarity Index, as well as the results of an initial investigation into the desiccation of the targets, which reveals that TOI 203 b is almost certainly desiccated based on TESS observations. We then describe the characterization of the remaining targets and their host stars from 2MASS, Gaia, and TESS data and the derivation of sampled probability distributions for their parameters. Following this, we describe our process of simulating the desiccation of the targets hydrospheres using the Virtual Planet Simulator, VPLanet, with inputs directly linked to the previously derived probability distributions. We find that 50.86 percent of the likely cases for TOI 700 d are desiccated and no modeled cases for TOI 256 b are without water. In addition, we calculate the remaining water inventory for the targets, the percentage of cases that are continuing to lose water, and the rate at which these cases are losing water.
