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Laser Guide Star Adaptive Optics Point Spread Function Reconstruction Project at W. M. Keck Observatory : preliminary on-sky results

机译:W. M. Keck天文台的激光导星自适应光学点扩展功能重建项目:初步的空中结果

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We present in this paper an analysis of our preliminary results for point spread function reconstruction in laser guide star (LGS) mode for the Keck-Ⅱ adaptive optics system. Our approach is based on a update of the natural guide star algorithm with the LGS terms. The first reconstruction we have done is based on a set of 13 LGS runs (telemetry data and sky PSF) for which we demonstrate already a significant correlation between the reconstructed and sky PSF metrics. At this point of the project, though, our reconstructed PSF does not reproduce the sky PSF features (and this is expected) : we discuss why, and describe the different issues we have to solve, and the different experiment we will do, in order to achieve a good reconstruction.
机译:本文对Keck-Ⅱ自适应光学系统在激光导星(LGS)模式下点扩展函数重构的初步结果进行了分析。我们的方法基于使用LGS术语对自然导星算法的更新。我们所做的第一个重构是基于一组13个LGS运行(遥测数据和Sky PSF),我们已经证明了这些重构和Sky PSF度量之间已经存在显着相关性。不过,在该项目的这一点上,我们重建的PSF并未重现天空PSF的功能(这是预期的):我们讨论原因,并描述我们必须解决的不同问题以及我们将要做的不同实验实现良好的重建。

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