用于罗曼日冕仪的增强型波前传感：高斯探测器与紧凑模型验证
Enhanced wavefront sensing for the Roman Coronagraph Instrument: Gaussian probes and compact model validation
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中文总结 AI 辅助
研究罗曼日冕仪增强型波前传感，核心方法是用高斯探测器进行电场估计并通过无噪声紧凑软件模型模拟，主要贡献是展示其能增加信噪比、减少曝光时间等好处，被选为2027年初罗曼首个技术演示。
中文摘要 AI 辅助
罗曼太空望远镜上的日冕仪将是首个展示闭环焦平面波前传感与控制的天基系统，这是迈向宜居世界天文台的关键一步。除了基线混合日冕仪，正在开发“增强模式”以提高效率和科学产出。一种模式使用高斯探测器进行电场估计，扩展线性范围并允许更高的探测器振幅。这可能会增加信噪比、减少曝光时间、加速暗孔收敛，并将操作扩展到V~5等微弱恒星。因此，它被日冕仪社区参与计划的硬件工作组选为2027年初在罗曼上进行的首个技术演示。我们展示使用无噪声紧凑软件模型的数值模拟，证明用高斯探测器取代标称探测器的好处。
英文摘要
The Coronagraph Instrument on the Roman Space Telescope will be the first space-based system to demonstrate closed-loop focal-plane wavefront sensing and control, a key step towards the Habitable Worlds Observatory. Beyond the baseline Hybrid Lyot Coronagraph, "enhanced modes" are being developed to improve efficiency and science yield. One such mode uses Gaussian probes for electric field estimation, extending the linear regime and allowing higher probe amplitudes. This may increase signal-to-noise, reduce exposure time, accelerate dark hole convergence, and extend operation to stars as faint as $V\sim5$. For those reasons, it was selected by the Coronagraph Community Participation Program's Hardware Working Group as the first technology demonstration carried out on Roman in early 2027. We present numerical simulations using a noise-free compact software model, which demonstrate the benefits of replacing the nominal probes with Gaussian probes.
