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首页> 外文会议>Conference on adaptive optics systems III >Adaptive optics point spread function reconstruction project at W. M. Keck Observatory: first results with faint natural guide stars
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Adaptive optics point spread function reconstruction project at W. M. Keck Observatory: first results with faint natural guide stars

机译：W.M.凯克天文台的自适应光学点扩散函数重建项目：隐性自然星体的首次结果

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摘要

We discuss in this paper the last results of our adaptive optics point spread function reconstruction (PSF-R) project at theW. M. Keck Observatory. Objective of the project are recalled, followed by a short reintroduction of the basis of the method. Amongst the novelties, a method for a drastic reduction of the number of the so-called iU/isubi,j/sub functions for any pupil shape and an arbitrary number of actuators is presented, making the current PSF-R technique easily applicable to extremely large telescopes AO systems. Our success at reconstructing the PSF in bright natural guide star (NGS) conditions is revisited in details and confirmed. First results on PSF-R with faint NGS are presented and it is shown that our reconstructed PSF Strehl ratio drops with the NGS magnitude basically like the measured sky performance. These preliminary but encouraging results, in real conditions, can be considered as a validation of our PSF-R approach. Plans for the next steps of the project are discussed at the end of this progress report.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译：我们在本文中讨论了W自适应光学点扩展函数重建（PSF-R）项目的最新结果。 M.凯克天文台。回顾了该项目的目标，然后简短介绍了该方法的基础。在这些新颖性中，提出了一种用于大幅减少用于任何瞳孔形状和任意数量的致动器的所谓的 U i，j 函数的数量的方法，使得当前的PSF-R技术很容易适用于超大型望远镜AO系统。我们将详细回顾并证实我们在明亮自然导星（NGS）条件下重建PSF的成功。提出了带有微弱NGS的PSF-R的初步结果，结果表明，我们重建的PSF Strehl比值随着NGS幅度的下降而下降，基本上与测得的天空性能相似。在实际条件下，这些初步但令人鼓舞的结果可以被视为对我们PSF-R方法的验证。在此进度报告的末尾讨论了该项目下一步的计划。©（2012）COPYRIGHT光电仪器工程师协会（SPIE）。摘要的下载仅允许个人使用。

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