High-resolution imaging and spectroscopy in the visible from large ground-based telescopes with natural guide stars

High-resolution imaging and spectroscopy in the visible from large ground-based telescopes with natural guide stars
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具有自然导星的大型地面望远镜在可见光中的高分辨率成像和光谱

DOI:
10.1117/12.855281
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发表时间:
2010
期刊:
--
影响因子:
--
通讯作者:
Mackay C
Mackay C
中科院分区:
--
文献类型:
--
作者:
Mackay C

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相似文献

在大型(8-10米)级望远镜上,近衍射极限成像和光谱已被证明超出了当前自适应光学技术的能力,即使在使用激光导星时也是如此。对天空任何部分的高分辨率可见成像的需求表明,我们需要一种完全不同的方法。本文描述了模拟、实验和天文观测的结果,表明在大型望远镜上,使用四场曲率传感器的低阶自适应光学校正和光子计数CCD相机系统的快速Lucky成像策略相结合,在参考星微弱到18.5等的I波段上,可以提供20-25毫角秒的可见光分辨率。这样的仪器可以用来有效地馈入一个积分场摄谱仪,其结构也将被描述。
Near-diffraction limited imaging and spectroscopy in the visible on large (8-10 meter) class telescopes has proved to be beyond the capabilities of current adaptive optics technologies, even when using laser guide stars. The need for high resolution visible imaging in any part of the sky suggests that a rather different approach is needed. This paper describes the results of simulations, experiments and astronomical observations that show that a combination of low order adaptive optic correction using a 4-field curvature sensor and fast Lucky Imaging strategies with a photon counting CCD camera systems should deliver 20-25 milliarcsecond resolution in the visible with reference stars as faint as 18.5 magnitude in I band on large telescopes. Such an instrument may be used to feed an integral field spectrograph efficiently using configurations that will also be described.
自适应光学系统的 Strehl 效率
DOI: --
发表时间: 2006
期刊:
影响因子: --
作者:
R. Racine
通讯作者: R. Racine
Lucky Imaging 中的点扩散函数和短时间尺度上视宁度的变化
DOI: 10.1051/0004-6361:20079214
发表时间: 2008
影响因子: 6.5
作者:
Baldwin J
通讯作者: Baldwin J
幸运的是自适应光学:使用大型望远镜在可见光中快速自适应光学图像选择
DOI: 10.1088/0004-637x/692/1/924
发表时间: 2009
期刊: The Astrophysical Journal
影响因子: --
作者:
Law N
通讯作者: Law N