论文标题
EXOSIM：系外行星观察模拟器
ExoSim: the Exoplanet Observation Simulator
论文作者
论文摘要
新一代的系外行星研究唤醒了对模拟工具的需求，以准确预测过境光谱观测中的信号和噪声。我们开发了Exosim：一种端到端的模拟器，该模拟器在动态模拟中建模噪声和系统。 Exosim在其模拟的复杂性，使用的多功能性以及其一致应用于不同仪器的能力方面改善了先前的模拟器。它执行动态模拟，可以捕获时间效应，例如光曲线上的相关噪声和系统学。它也得到了广泛的验证，包括与哈勃WFC3仪器的实际结果相对。在大多数比较中，我们发现Exosim准确地在5％以内。 EXOSIM可以与模拟特定时间相关过程的其他模型进行交互。专用的恒星斑点模拟器允许Exosim产生模拟观测值，包括斑点和张污染。 Exosim已在Ariel任务的A期和B设计研究中广泛使用，并且在过境光谱领域具有许多潜在的应用。
A new generation of exoplanet research beckons and with it the need for simulation tools that accurately predict signal and noise in transit spectroscopy observations. We developed ExoSim: an end-to-end simulator that models noise and systematics in a dynamical simulation. ExoSim improves on previous simulators in the complexity of its simulation, versatility of use and its ability to be generically applied to different instruments. It performs a dynamical simulation that can capture temporal effects, such as correlated noise and systematics on the light curve. It has also been extensively validated, including against real results from the Hubble WFC3 instrument. We find ExoSim is accurate to within 5% in most comparisons. ExoSim can interact with other models which simulate specific time-dependent processes. A dedicated star spot simulator allows ExoSim to produce simulated observations that include spot and facula contamination. ExoSim has been used extensively in the Phase A and B design studies of the ARIEL mission, and has many potential applications in the field of transit spectroscopy.
