论文标题
系外行星气氛的耦合昼夜模型
Coupled Day-Night Models of Exoplanetary Atmospheres
论文作者
论文摘要
我们提供了一个新的框架，以使用1-D辐射转移来对白天和夜间侧面的大气进行建模，通过在两侧通过循环电流（风）携带的自搭配热通量。我们模型的优点是其物理动机和计算效率，可以探索广泛的大气参数。我们使用该前向模型探索WASP-76〜B的白天和夜间大气，这是一种超热的木星，显示了热反转和FE凝结的证据，以及黄蜂43〜B，将我们的模型与高精度相位曲线和一般循环模型进行了比较。我们能够与我们的模型紧密匹配这两个行星的观察结果以及先前的理论预测。我们还对一系列具有平衡温度在1000-3000〜K之间的热木星进行建模，并重现观察到的趋势，即白天温度的对比随着平衡温度的增加而增加，最高$ \ sim $ 2500〜K，h $ _2 $的分离显着，相对温度差异很大，并且相对温度差的下降。
We provide a new framework to model the day side and night side atmospheres of irradiated exoplanets using 1-D radiative transfer by incorporating a self-consistent heat flux carried by circulation currents (winds) between the two sides. The advantages of our model are its physical motivation and computational efficiency, which allows for an exploration of a wide range of atmospheric parameters. We use this forward model to explore the day and night side atmosphere of WASP-76~b, an ultra-hot Jupiter which shows evidence for a thermal inversion and Fe condensation, and WASP-43~b, comparing our model against high precision phase curves and general circulation models. We are able to closely match the observations as well as prior theoretical predictions for both of these planets with our model. We also model a range of hot Jupiters with equilibrium temperatures between 1000-3000~K and reproduce the observed trend that the day-night temperature contrast increases with equilibrium temperature up to $\sim$2500~K beyond which the dissociation of H$_2$ becomes significant and the relative temperature difference declines.
