摘要
本文指出大口径望远镜和高色散摄谱仪匹配巾的狭缝允宽与光谱纯度及相机焦比之间的矛盾。分析了超大光栅、拼光栅及星像切分器等方案的优缺点。把类MMT型系统叫做子口径法,分析了MMT法的优缺点。引入主镜后子口径系统并分析了它的优缺点。最后引入伞新的子口径自适应光学多光纤方案并分析了它的优缺点。
In this paper, we point out the difficulties encountered in the case of matching efficiently a very large telescope with a high dispersion spectrograph. After analysing the advantages and disadvantages of the very large grating, the mosaic gruting, the super-width grating and the image slicer, we mention out the MMT and its analogy, We call all these as sub-aperture methods. Then we introduce a new way, the sub-aperture adaptive optics-optical fiber system after the primary, and analyse its advantages and disadvantages.
出处
《天文学进展》
CSCD
北大核心
1992年第2期136-142,共7页
Progress In Astronomy
