论文标题
异国主义：用于边缘化系外行星过境参数的Python包装，跨系统仪器模型
ExoTiC-ISM: A Python package for marginalised exoplanet transit parameters across a grid of systematic instrument models
论文作者
论文摘要
为了解决过境光曲线中仪器系统校准的问题，我们提出了Python包装外来主义。过境光谱可以揭示系外星大气中许多不同的化学成分，但是这些结果取决于校准良好的过境光曲线观测。每个运输数据集将包含依赖使用的仪器的仪器系统，并且需要使用仪器系统模型进行校准。 Wakeford等人提出的解决方案。 （2016）（ARXIV：1601.02587 [Astro-Ph.ep]）是在系统模型的网格上使用边缘化，以检索边缘化的Transit参数。在多个波长中进行观察，从而产生了系外行星的稳健透射光谱。异国主义提供了执行此分析的工具，其当前功能包含一个系统的网格，该网格适用于哈勃太空望远镜（HST）上的田间摄像头3（WFC3）检测器，尤其是针对两种红外Grisms G141和G102。通过对代码的模块化和更系统的网格的实现，外来主义可以用于其他工具，并且在James Webb太空望远镜（JWST）上进行选择的检测器实现将来将在未来提供强大的过境光谱。
To address the the problem of calibration of instrument systematics in transit light curves, we present the Python package ExoTiC-ISM. Transit spectroscopy can reveal many different chemical components in exoplanet atmospheres, but such results depend on well-calibrated transit light curve observations. Each transit data set will contain instrument systematics that depend on the instrument used and will need to be calibrated out with an instrument systematic model. The proposed solution in Wakeford et al. (2016) (arXiv:1601.02587 [astro-ph.EP]) is to use a marginalisation across a grid of systematic models in order to retrieve marginalised transit parameters. Doing this over observations in multiple wavelengths yields a robust transmission spectrum of an exoplanet. ExoTiC-ISM provides tools to perform this analysis, and its current capability contains a systematic grid that is applicable to the Wide Field Camera 3 (WFC3) detector on the Hubble Space Telescope (HST), particularly for the two infrared grisms G141 and G102. By modularisation of the code and implementation of more systematic grids, ExoTiC-ISM can be used for other instruments, and an implementation for select detectors on the James Webb Space Telescope (JWST) will provide robust transit spectra in the future.
