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
复制标题
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
复制
发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Mackay C
中科院分区:
文献类型:
--
作者:
Mackay C
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.
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
R. Racine
通讯作者:
R. Racine
影响因子:
6.5
作者:
Baldwin J
通讯作者:
Baldwin J
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