论文标题
段级热敏感性分析，用于欧洲的成像
Segment-level thermal sensitivity analysis for exo-Earth imaging
论文作者
论文摘要
我们提出了一个细分级波前稳定性误差预算，用于远程望远镜的外系望远镜检测必不可少的。我们使用详细的有限元模型将主要镜像位置的温度梯度与每个段的波前变化相关联。我们将Pastis灵敏度模型向前方法应用于每个段中物理单位中的静态公差，并通过WFS＆C架构的模型将这些公差转移到时间域，并结合Zernike相位传感器和科学相机。我们最终估计了段的热力学模式的近环方差和限制对比度。
We present a segment-level wavefront stability error budget for space telescopes essential for exoplanet detection. We use a detailed finite element model to relate the temperature gradient at the location of the primary mirror to wavefront variations on each of the segment. We apply the PASTIS sensitivity model forward approach to allocate static tolerances in physical units for each segment, and transfer these tolerances to the temporal domain via a model of the WFS&C architecture in combination with a Zernike phase sensor and science camera. We finally estimate the close-loop variance and limiting contrast for the segments' thermo-mechanical modes.
