AI 中文总结
研究探索涉及单空间模式测量的日冕仪极限，用于宜居世界天文台红外臂。给出单通道1/D行星通量与单通道恒星抑制的函数关系，表明测量单个优化空间模式能达理论信息极限约80%。
AI 中文摘要
传统日冕仪架构在近距离工作角度难以达到系外行星探测的理论极限。空间模式分选能够达到理论极限，此前工作针对信号完全处于望远镜基本活塞模式的完全未分辨恒星进行了计算。最近，我们计算了优化的消零模式作为恒星和行星参数大小的函数，目的是在部分分辨恒星和复杂望远镜孔径的情况下，在约1/D工作角度提高日冕仪性能。在这项工作中，我们进一步探索涉及单空间模式测量的日冕仪极限，这对宜居世界天文台的红外臂有潜在应用。我们给出了作为单通道恒星抑制函数的可实现单通道1/D行星通量（对于直径0.03/D的恒星），并表明测量单个优化空间模式的能力可使我们至少达到理论信息极限的约80%
英文摘要
Conventional coronagraph architectures struggle to reach the theoretical limit of exoplanet detection at close working angles. Spatial mode-sorting is capable of reaching the theoretical limit, which previous work has calculated for a completely unresolved star whose signal lies entirely in the fundamental piston mode of the telescope. More recently, we have calculated optimized nulling modes as a function of the size of the star and planet parameters, with the goal of improving coronagraphic performance at ~l/D working angles given partially resolved stars and complex telescope apertures. In this work, we further explore the limits of a coronagraph involving the measurement of a single spatial mode, with potential applications for the infrared arm of the Habitable Worlds Observatory. We present the achievable single-channel 1 l/D planet throughput as a function of the single-channel stellar suppression (for a 0.03 l/D diameter star), and show that the ability to measure a single optimized spatial mode can allow us to reach at least ~80% of the theoretical information limit.
Comments6 pages, 3 figures, proceedings of SPIE Astronomical Telescopes + Instrumentation 2026, 14148-134
