Special configuration of a very large Schmidt telescope for extensive astronomical spectroscopic observation.
Special configuration of a very large Schmidt telescope for extensive astronomical spectroscopic observation.
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DOI：
10.1364/ao.35.005155
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发表时间：
1996-09
期刊：
影响因子：
1.9
通讯作者：
S. Wang;D. Su;Y. Chu;X. Cui;Y. N. Wang
中科院分区：
文献类型：
--
作者：
S. Wang;D. Su;Y. Chu;X. Cui;Y. N. Wang
一种特殊的反射式施密特望远镜被用来观测天体。该望远镜的孔径为4米，f比为5，视场角为5°。它的光轴是固定的，并与从南到北的水平线倾斜25°。天体在通过子午线时被观察了1.5小时。在跟踪过程中，反射施密特板的形状必须随着每个不同的偏差δ而改变。这是通过主动光学实现的。观测的天区为-10° ≤ δ ≤ +90°。计划在望远镜焦面上放置约4000根光纤，这将导致十几个光谱仪。
A special reflecting Schmidt telescope is used to observe celestial objects. The telescope has an aperture of 4m, f ratio of 5, and a 5° field of view. Its optical axis is fixed and tilted 25° to the horizontal that runs from south to north. The celestial objects were observed for 1.5 h as they passed through the meridian. The shape of the reflecting Schmidt plate has to be changed with each different declination δ and in the tracking process. This is achieved with active optics. The sky area to be observed is -10° ≤ δ ≤ +90°. There are plans to place ~4000 optical fibers on the telescope focal surface that will lead to a dozen spectrographs.