论文标题
系外行星WASP-140B的光度法和过境建模
Photometry and transit modelling of exoplanet WASP-140b
论文作者
论文摘要
研究了超级球星WASP-140B的11个过境光曲线，其主要目的是研究过时时间变化的可能性（TTVS）。使用马尔可夫链蒙特卡洛技术（Monte Carlo Techniques）分析了以前未研究的微型驾驶员和LAS CUMBRES全球望远镜网络光度法，其中包括这项研究于2021年12月对TRENTIT收集的新观察结果。没有发现TTVS的证据。我们使用了两个结合贝叶斯优化的运输模型来探索系统的物理参数。 WASP-140B的半径估计为$ 1.38^{+0.18} _ { - 0.17} $ jupiter radii，行星以$ 2.235987 \ pm 0.000008 $ $ 85.75 \ pm 0.75 \ pm 0.75 \ pm 0.75 $ 0.75 $ 0.75 $ 0.75 $ 0.75 $ 0.75 $ 0.75 $ 0.75 $ deper绕着其主机明星。派生的参数与2016年系外行星发现文件中的参数正式一致，并且比最近基于TESS空间望远镜的光度法的独立研究要大一些。
Eleven transit light curves for the exoplanet WASP-140b were studied with the primary objective to investigate the possibility of transit timing variations (TTVs). Previously unstudied MicroObservatory and Las Cumbres Global Telescope Network photometry were analysed using Markov Chain Monte Carlo techniques, including new observations collected by this study of a transit in December 2021. No evidence was found for TTVs. We used two transit models coupled with Bayesian optimization to explore the physical parameters of the system. The radius for WASP-140b was estimated to be $1.38^{+0.18}_{-0.17}$ Jupiter radii, with the planet orbiting its host star in $2.235987 \pm 0.000008$ days at an inclination of $85.75 \pm 0.75$ degrees. The derived parameters are in formal agreement with those in the exoplanet discovery paper of 2016, and somewhat larger than a recent independent study based on photometry by the TESS space telescope.
