论文标题
为未来的任务铺平道路：罗马太空望远镜冠冕技术演示
Paving the Way to Future Missions: the Roman Space Telescope Coronagraph Technology Demonstration
论文作者
论文摘要
该文档总结了Nancy Grace Roman Space Coronagraph仪器（Roman CGI）将用于展示HABEX和LUVOIR概念所说明的潜在未来系外行星直接成像任务的高对比度成像和光谱要求。该评估是针对CGI的两个级别进行评估：（i）基于实验室结果和现实的端到端模拟，截至2020年8月，当前最佳估计值（CBE）具有JPL-标准模型不确定性因素（MUFS）； （ii）CGI设计规格从B期要求继承。我们发现，尽管提供了比未来的任务相比，尽管提供了更适中的点源检测限制，但许多CGI子系统的预测性能（CBE）与未来任务的需求相比有利。从本质上讲，这是由于罗马太空望远镜的具有挑战性的学生。这个学生将冠冕掩盖掩盖了敏感性，以使未来的任务与未来的任务相称。特别是，CGI将在性能水平上表现出主动的低阶波前控制和光子计数能力，既要高于或可比未来任务的需求。
This document summarizes how far the Nancy Grace Roman Space Telescope Coronagraph Instrument (Roman CGI) will go toward demonstrating high-contrast imaging and spectroscopic requirements for potential future exoplanet direct imaging missions, illustrated by the HabEx and LUVOIR concepts. The assessment is made for two levels of assumed CGI performance: (i) current best estimate (CBE) as of August 2020, based on laboratory results and realistic end-to-end simulations with JPL-standard Model Uncertainty Factors (MUFs); (ii) CGI design specifications inherited from Phase B requirements. We find that the predicted performance (CBE) of many CGI subsystems compares favorably with the needs of future missions, despite providing more modest point source detection limits than future missions. This is essentially due to the challenging pupil of the Roman Space Telescope; this pupil pushes the coronagraph masks sensitivities to misalignments to be commensurate with future missions. In particular, CGI will demonstrate active low-order wavefront control and photon counting capabilities at levels of performance either higher than, or comparable to, the needs of future missions.
