论文标题
基于WFS的PSF校准的光子噪声极限处的高对比度成像
High Contrast Imaging at the Photon Noise Limit with WFS-based PSF Calibration
论文作者
论文摘要
Speckle噪声是使用自适应光学系统高对比度成像中的主要误差来源。我们讨论了波前传感遥测的潜力，以足够的精度和精度校准斑点噪声，以便可以在高对比度成像仪器获得的科学图像后进行后处理。在这样的自我校准系统中，系外行星的检测将受到光子噪声的限制，并且比当前系统更强大，更有效。我们显示了初始的实验室和天上的测试，这表明在短时间内，残留的斑点噪声确实已被校准，以超过高对比度区域的读数和光子噪声的精度。我们讨论了空间和地面高对比度成像系统设计的杂物。
Speckle Noise is the dominant source of error in high contrast imaging with adaptive optics system. We discuss the potential for wavefront sensing telemetry to calibrate speckle noise with sufficient precision and accuracy so that it can be removed in post-processing of science images acquired by high contrast imaging instruments. In such a self-calibrating system, exoplanet detection would be limited by photon noise and be significantly more robust and efficient than in current systems. We show initial laboratory and on-sky tests, demonstrating over short timescale that residual speckle noise is indeed calibrated to an accuracy exceeding readout and photon noise in the high contrast region. We discuss immplications for the design of space and ground high-contrast imaging systems.
