论文标题
在极大的望远镜时代，红外线搜索指南窗口
InfraRed On-Detector Guide-Windows in the era of Extremely Large Telescopes
论文作者
论文摘要
未来的极大望远镜（ELT）将需要自适应光学（AO）系统的进步才能充分发挥其潜力。除了独立的，专用的波前传感器外，还认识到许多新仪器也需要科学焦平面本身内的波前传感。一种方法是使用探测器指南窗口（ODGWS），因此，科学探测器的一个小子窗口连续读取（〜10S-100的Hz）与完整芯片（> 10 s）的读数较慢。这些窗户的导向星质体可用于校正振动和弯曲。这些窗口的另一个潜在用途是高节奏进行局部重置，以防止饱和度并最大程度地减少明亮来源的持久性。我们使用5-UM截止teledyne Hawaii-2RG红外探测器和新的天文学研究摄像机GEN-4控制器制定了ODGW系统。我们描述了我们对ODGW模式的实现以及观察到的科学图像伪影。
Future Extremely Large Telescopes (ELTs) will require advances in Adaptive Optics (AO) systems to fully realize their potential. In addition to separate, dedicated wavefront sensors, it is recognized that wavefront sensing within the science focal plane itself will also be needed for many new instruments. One approach is to use On-Detector Guide Windows (ODGWs), whereby a small sub-window of a science detector is read-out continuously (~10s-100s of Hz) in parallel with slower reads of the full chip (>10 s). Guide star centroids from these windows can be used to correct for vibrations and flexure. Another potential use for these windows is to perform localized resets at high cadence to prevent saturation and to minimize persistence from bright sources. We have prototyped an ODGW system using a 5-um cutoff Teledyne HAWAII-2RG infrared detector, and the new Astronomical Research Cameras Gen-4 controller. We describe our implementation of an ODGW mode, and science image artifacts that were observed.
